mirrors/postgres
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Add decoding of sequences to built-in replication

Browse Source 
This commit adds support for decoding of sequences to the built-in
replication (the infrastructure was added by commit 0da92dc530).

The syntax and behavior mostly mimics handling of tables, i.e. a
publication may be defined as FOR ALL SEQUENCES (replicating all
sequences in a database), FOR ALL SEQUENCES IN SCHEMA (replicating
all sequences in a particular schema) or individual sequences.

To publish sequence modifications, the publication has to include
'sequence' action. The protocol is extended with a new message,
describing sequence increments.

A new system view pg_publication_sequences lists all the sequences
added to a publication, both directly and indirectly. Various psql
commands (\d and \dRp) are improved to also display publications
including a given sequence, or sequences included in a publication.

Author: Tomas Vondra, Cary Huang
Reviewed-by: Peter Eisentraut, Amit Kapila, Hannu Krosing, Andres
             Freund, Petr Jelinek
Discussion: https://postgr.es/m/d045f3c2-6cfb-06d3-5540-e63c320df8bc@enterprisedb.com
Discussion: https://postgr.es/m/1710ed7e13b.cd7177461430746.3372264562543607781@highgo.ca
This commit is contained in:
Tomas Vondra 2022-03-24 18:20:21 +01:00
parent 0adb3dc68b
commit 75b1521dae
40 changed files with 3236 additions and 469 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

81
doc/src/sgml/catalogs.sgml
View File

@ -6281,6 +6281,16 @@ SCRAM-SHA-256$<replaceable>&lt;iteration count&gt;</replaceable>:<replaceable>&l
Reference to schema
</para></entry>
</row>
<row>
<entry role="catalog_table_entry"><para role="column_definition">
<structfield>pntype</structfield> <type>char</type>
Determines which object type is included from this schema.
</para>
<para>
Reference to schema
</para></entry>
</row>
</tbody>
</tgroup>
</table>
@ -9598,6 +9608,11 @@ SCRAM-SHA-256$<replaceable>&lt;iteration count&gt;</replaceable>:<replaceable>&l
<entry>prepared transactions</entry>
</row>
<row>
<entry><link linkend="view-pg-publication-sequences"><structname>pg_publication_sequences</structname></link></entry>
<entry>publications and their associated sequences</entry>
</row>
<row>
<entry><link linkend="view-pg-publication-tables"><structname>pg_publication_tables</structname></link></entry>
<entry>publications and their associated tables</entry>
@ -11433,6 +11448,72 @@ SELECT * FROM pg_locks pl LEFT JOIN pg_prepared_xacts ppx
</sect1>
<sect1 id="view-pg-publication-sequences">
<title><structname>pg_publication_sequences</structname></title>
<indexterm zone="view-pg-publication-sequences">
<primary>pg_publication_sequences</primary>
</indexterm>
<para>
The view <structname>pg_publication_sequences</structname> provides
information about the mapping between publications and the sequences they
contain. Unlike the underlying catalog
<link linkend="catalog-pg-publication-rel"><structname>pg_publication_rel</structname></link>,
this view expands
publications defined as <literal>FOR ALL SEQUENCES</literal>, so for such
publications there will be a row for each eligible sequence.
</para>
<table>
<title><structname>pg_publication_sequences</structname> Columns</title>
<tgroup cols="1">
<thead>
<row>
<entry role="catalog_table_entry"><para role="column_definition">
Column Type
</para>
<para>
Description
</para></entry>
</row>
</thead>
<tbody>
<row>
<entry role="catalog_table_entry"><para role="column_definition">
<structfield>pubname</structfield> <type>name</type>
(references <link linkend="catalog-pg-publication"><structname>pg_publication</structname></link>.<structfield>pubname</structfield>)
</para>
<para>
Name of publication
</para></entry>
</row>
<row>
<entry role="catalog_table_entry"><para role="column_definition">
<structfield>schemaname</structfield> <type>name</type>
(references <link linkend="catalog-pg-namespace"><structname>pg_namespace</structname></link>.<structfield>nspname</structfield>)
</para>
<para>
Name of schema containing sequence
</para></entry>
</row>
<row>
<entry role="catalog_table_entry"><para role="column_definition">
<structfield>sequencename</structfield> <type>name</type>
(references <link linkend="catalog-pg-class"><structname>pg_class</structname></link>.<structfield>relname</structfield>)
</para>
<para>
Name of sequence
</para></entry>
</row>
</tbody>
</tgroup>
</table>
</sect1>
<sect1 id="view-pg-publication-tables">
<title><structname>pg_publication_tables</structname></title>

119
doc/src/sgml/protocol.sgml
View File

@ -7065,6 +7065,125 @@ Relation
</listitem>
</varlistentry>
<varlistentry id="protocol-logicalrep-message-formats-Sequence">
<term>
Sequence
</term>
<listitem>
<para>
<variablelist>
<varlistentry>
<term>
Byte1('X')
</term>
<listitem>
<para>
Identifies the message as a sequence message.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
Int32 (TransactionId)
</term>
<listitem>
<para>
Xid of the transaction (only present for streamed transactions).
This field is available since protocol version 2.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
Int8(0)
</term>
<listitem>
<para>
Flags; currently unused.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
Int64 (XLogRecPtr)
</term>
<listitem>
<para>
The LSN of the sequence increment.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
String
</term>
<listitem>
<para>
Namespace (empty string for <literal>pg_catalog</literal>).
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
String
</term>
<listitem>
<para>
Relation name.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
Int8
</term>
<listitem>
<para>
1 if the sequence update is transactions, 0 otherwise.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
Int64
</term>
<listitem>
<para>
<structfield>last_value</structfield> value of the sequence.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
Int64
</term>
<listitem>
<para>
<structfield>log_cnt</structfield> value of the sequence.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
Int8
</term>
<listitem>
<para>
<structfield>is_called</structfield> value of the sequence.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</listitem>
</varlistentry>
<varlistentry id="protocol-logicalrep-message-formats-Type">
<term>
Type

25
doc/src/sgml/ref/alter_publication.sgml
View File

@ -31,7 +31,9 @@ ALTER PUBLICATION <replaceable class="parameter">name</replaceable> RENAME TO <r
<phrase>where <replaceable class="parameter">publication_object</replaceable> is one of:</phrase>
TABLE [ ONLY ] <replaceable class="parameter">table_name</replaceable> [ * ] [ WHERE ( <replaceable class="parameter">expression</replaceable> ) ] [, ... ]
SEQUENCE <replaceable class="parameter">sequence_name</replaceable> [, ... ]
ALL TABLES IN SCHEMA { <replaceable class="parameter">schema_name</replaceable> | CURRENT_SCHEMA } [, ... ]
ALL SEQUENCES IN SCHEMA { <replaceable class="parameter">schema_name</replaceable> | CURRENT_SCHEMA } [, ... ]
</synopsis>
</refsynopsisdiv>
@ -44,13 +46,13 @@ ALTER PUBLICATION <replaceable class="parameter">name</replaceable> RENAME TO <r
</para>
<para>
The first three variants change which tables/schemas are part of the
publication. The <literal>SET</literal> clause will replace the list of
tables/schemas in the publication with the specified list; the existing
tables/schemas that were present in the publication will be removed. The
<literal>ADD</literal> and <literal>DROP</literal> clauses will add and
remove one or more tables/schemas from the publication. Note that adding
tables/schemas to a publication that is already subscribed to will require an
The first three variants change which objects (tables, sequences or schemas)
are part of the publication. The <literal>SET</literal> clause will replace
the list of objects in the publication with the specified list; the existing
objects that were present in the publication will be removed.
The <literal>ADD</literal> and <literal>DROP</literal> clauses will add and
remove one or more objects from the publication. Note that adding objects
to a publication that is already subscribed to will require an
<literal>ALTER SUBSCRIPTION ... REFRESH PUBLICATION</literal> action on the
subscribing side in order to become effective. Note also that the combination
of <literal>DROP</literal> with a <literal>WHERE</literal> clause is not
@ -122,6 +124,15 @@ ALTER PUBLICATION <replaceable class="parameter">name</replaceable> RENAME TO <r
</listitem>
</varlistentry>
<varlistentry>
<term><replaceable class="parameter">sequence_name</replaceable></term>
<listitem>
<para>
Name of an existing sequence.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><replaceable class="parameter">schema_name</replaceable></term>
<listitem>

8
doc/src/sgml/ref/alter_subscription.sgml
View File

@ -148,8 +148,8 @@ ALTER SUBSCRIPTION <replaceable class="parameter">name</replaceable> RENAME TO <
<listitem>
<para>
Fetch missing table information from publisher. This will start
replication of tables that were added to the subscribed-to publications
since <command>CREATE SUBSCRIPTION</command> or
replication of tables and sequences that were added to the subscribed-to
publications since <command>CREATE SUBSCRIPTION</command> or
the last invocation of <command>REFRESH PUBLICATION</command>.
</para>
@ -167,8 +167,8 @@ ALTER SUBSCRIPTION <replaceable class="parameter">name</replaceable> RENAME TO <
The default is <literal>true</literal>.
</para>
<para>
Previously subscribed tables are not copied, even if a table's row
filter <literal>WHERE</literal> clause has since been modified.
Previously subscribed tables and sequences are not copied, even if a
table's row filter <literal>WHERE</literal> clause has since been modified.
</para>
</listitem>
</varlistentry>

53
doc/src/sgml/ref/create_publication.sgml
View File

@ -22,14 +22,21 @@ PostgreSQL documentation
<refsynopsisdiv>
<synopsis>
CREATE PUBLICATION <replaceable class="parameter">name</replaceable>
[ FOR ALL TABLES
[ FOR ALL <replaceable class="parameter">object_type</replaceable> [, ...]
| FOR <replaceable class="parameter">publication_object</replaceable> [, ... ] ]
[ WITH ( <replaceable class="parameter">publication_parameter</replaceable> [= <replaceable class="parameter">value</replaceable>] [, ... ] ) ]
<phrase>where <replaceable class="parameter">object type</replaceable> is one of:</phrase>
TABLES
SEQUENCES
<phrase>where <replaceable class="parameter">publication_object</replaceable> is one of:</phrase>
TABLE [ ONLY ] <replaceable class="parameter">table_name</replaceable> [ * ] [ WHERE ( <replaceable class="parameter">expression</replaceable> ) ] [, ... ]
SEQUENCE <replaceable class="parameter">sequence_name</replaceable> [ * ] [, ... ]
ALL TABLES IN SCHEMA { <replaceable class="parameter">schema_name</replaceable> | CURRENT_SCHEMA } [, ... ]
ALL SEQUENCES IN SCHEMA { <replaceable class="parameter">schema_name</replaceable> | CURRENT_SCHEMA } [, ... ]
</synopsis>
</refsynopsisdiv>
@ -108,26 +115,42 @@ CREATE PUBLICATION <replaceable class="parameter">name</replaceable>
</varlistentry>
<varlistentry>
<term><literal>FOR ALL TABLES</literal></term>
<term><literal>FOR SEQUENCE</literal></term>
<listitem>
<para>
Marks the publication as one that replicates changes for all tables in
the database, including tables created in the future.
Specifies a list of sequences to add to the publication.
</para>
<para>
Specifying a sequence that is part of a schema specified by <literal>FOR
ALL SEQUENCES IN SCHEMA</literal> is not supported.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>FOR ALL TABLES</literal></term>
<term><literal>FOR ALL SEQUENCES</literal></term>
<listitem>
<para>
Marks the publication as one that replicates changes for all tables/sequences in
the database, including tables/sequences created in the future.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>FOR ALL TABLES IN SCHEMA</literal></term>
<term><literal>FOR ALL SEQUENCES IN SCHEMA</literal></term>
<listitem>
<para>
Marks the publication as one that replicates changes for all tables in
the specified list of schemas, including tables created in the future.
Marks the publication as one that replicates changes for all sequences/tables in
the specified list of schemas, including sequences/tables created in the future.
</para>
<para>
Specifying a schema along with a table which belongs to the specified
schema using <literal>FOR TABLE</literal> is not supported.
Specifying a schema along with a sequence/table which belongs to the specified
schema using <literal>FOR SEQUENCE</literal>/<literal>FOR TABLE</literal> is not supported.
</para>
<para>
@ -202,10 +225,9 @@ CREATE PUBLICATION <replaceable class="parameter">name</replaceable>
<title>Notes</title>
<para>
If <literal>FOR TABLE</literal>, <literal>FOR ALL TABLES</literal> or
<literal>FOR ALL TABLES IN SCHEMA</literal> are not specified, then the
publication starts out with an empty set of tables. That is useful if
tables or schemas are to be added later.
If <literal>FOR TABLE</literal>, <literal>FOR SEQUENCE</literal>, etc. is
not specified, then the publication starts out with an empty set of tables
and sequences. That is useful if objects are to be added later.
</para>
<para>
@ -220,10 +242,9 @@ CREATE PUBLICATION <replaceable class="parameter">name</replaceable>
</para>
<para>
To add a table to a publication, the invoking user must have ownership
rights on the table. The <command>FOR ALL TABLES</command> and
<command>FOR ALL TABLES IN SCHEMA</command> clauses require the invoking
user to be a superuser.
To add a table or a sequence to a publication, the invoking user must
have ownership rights on the object. The <command>FOR ALL ...</command>
clauses require the invoking user to be a superuser.
</para>
<para>

44
src/backend/catalog/objectaddress.c
View File

@ -1930,12 +1930,14 @@ get_object_address_publication_schema(List *object, bool missing_ok)
char *pubname;
char *schemaname;
Oid schemaid;
char *objtype;
ObjectAddressSet(address, PublicationNamespaceRelationId, InvalidOid);
/* Fetch schema name and publication name from input list */
schemaname = strVal(linitial(object));
pubname = strVal(lsecond(object));
objtype = strVal(lthird(object));
schemaid = get_namespace_oid(schemaname, missing_ok);
if (!OidIsValid(schemaid))
@ -1948,10 +1950,12 @@ get_object_address_publication_schema(List *object, bool missing_ok)
/* Find the publication schema mapping in syscache */
address.objectId =
GetSysCacheOid2(PUBLICATIONNAMESPACEMAP,
GetSysCacheOid3(PUBLICATIONNAMESPACEMAP,
Anum_pg_publication_namespace_oid,
ObjectIdGetDatum(schemaid),
ObjectIdGetDatum(pub->oid));
ObjectIdGetDatum(pub->oid),
CharGetDatum(objtype[0]));
if (!OidIsValid(address.objectId) && !missing_ok)
ereport(ERROR,
(errcode(ERRCODE_UNDEFINED_OBJECT),
@ -2232,7 +2236,6 @@ pg_get_object_address(PG_FUNCTION_ARGS)
case OBJECT_DOMCONSTRAINT:
case OBJECT_CAST:
case OBJECT_USER_MAPPING:
case OBJECT_PUBLICATION_NAMESPACE:
case OBJECT_PUBLICATION_REL:
case OBJECT_DEFACL:
case OBJECT_TRANSFORM:
@ -2257,6 +2260,7 @@ pg_get_object_address(PG_FUNCTION_ARGS)
/* fall through to check args length */
/* FALLTHROUGH */
case OBJECT_OPERATOR:
case OBJECT_PUBLICATION_NAMESPACE:
if (list_length(args) != 2)
ereport(ERROR,
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
@ -2327,6 +2331,8 @@ pg_get_object_address(PG_FUNCTION_ARGS)
objnode = (Node *) list_make2(name, linitial(args));
break;
case OBJECT_PUBLICATION_NAMESPACE:
objnode = (Node *) list_make3(linitial(name), linitial(args), lsecond(args));
break;
case OBJECT_USER_MAPPING:
objnode = (Node *) list_make2(linitial(name), linitial(args));
break;
@ -2881,11 +2887,12 @@ get_catalog_object_by_oid(Relation catalog, AttrNumber oidcol, Oid objectId)
*
* Get publication name and schema name from the object address into pubname and
* nspname. Both pubname and nspname are palloc'd strings which will be freed by
* the caller.
* the caller. The last parameter specifies which object type is included from
* the schema.
*/
static bool
getPublicationSchemaInfo(const ObjectAddress *object, bool missing_ok,
char **pubname, char **nspname)
char **pubname, char **nspname, char **objtype)
{
HeapTuple tup;
Form_pg_publication_namespace pnform;
@ -2921,6 +2928,13 @@ getPublicationSchemaInfo(const ObjectAddress *object, bool missing_ok,
return false;
}
/*
* The type is always a single character, but we need to pass it as a string,
* so allocate two charaters and set the first one. The second one is \0.
*/
*objtype = palloc0(2);
*objtype[0] = pnform->pntype;
ReleaseSysCache(tup);
return true;
}
@ -3926,15 +3940,17 @@ getObjectDescription(const ObjectAddress *object, bool missing_ok)
{
char *pubname;
char *nspname;
char *objtype;
if (!getPublicationSchemaInfo(object, missing_ok,
&pubname, &nspname))
&pubname, &nspname, &objtype))
break;
appendStringInfo(&buffer, _("publication of schema %s in publication %s"),
nspname, pubname);
appendStringInfo(&buffer, _("publication of schema %s in publication %s type %s"),
nspname, pubname, objtype);
pfree(pubname);
pfree(nspname);
pfree(objtype);
break;
}
@ -5729,18 +5745,24 @@ getObjectIdentityParts(const ObjectAddress *object,
{
char *pubname;
char *nspname;
char *objtype;
if (!getPublicationSchemaInfo(object, missing_ok, &pubname,
&nspname))
&nspname, &objtype))
break;
appendStringInfo(&buffer, "%s in publication %s",
nspname, pubname);
appendStringInfo(&buffer, "%s in publication %s type %s",
nspname, pubname, objtype);
if (objargs)
*objargs = list_make1(pubname);
else
pfree(pubname);
if (objargs)
*objargs = lappend(*objargs, objtype);
else
pfree(objtype);
if (objname)
*objname = list_make1(nspname);
else

328
src/backend/catalog/pg_publication.c
View File

@ -52,9 +52,10 @@
static void
check_publication_add_relation(Relation targetrel)
{
/* Must be a regular or partitioned table */
/* Must be a regular or partitioned table, or a sequence */
if (RelationGetForm(targetrel)->relkind != RELKIND_RELATION &&
RelationGetForm(targetrel)->relkind != RELKIND_PARTITIONED_TABLE)
RelationGetForm(targetrel)->relkind != RELKIND_PARTITIONED_TABLE &&
RelationGetForm(targetrel)->relkind != RELKIND_SEQUENCE)
ereport(ERROR,
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
errmsg("cannot add relation \"%s\" to publication",
@ -131,7 +132,8 @@ static bool
is_publishable_class(Oid relid, Form_pg_class reltuple)
{
return (reltuple->relkind == RELKIND_RELATION ||
reltuple->relkind == RELKIND_PARTITIONED_TABLE) &&
reltuple->relkind == RELKIND_PARTITIONED_TABLE ||
reltuple->relkind == RELKIND_SEQUENCE) &&
!IsCatalogRelationOid(relid) &&
reltuple->relpersistence == RELPERSISTENCE_PERMANENT &&
relid >= FirstNormalObjectId;
@ -176,6 +178,52 @@ filter_partitions(List *relids)
return result;
}
/*
* Check the character is a valid object type for schema publication.
*
* This recognizes either 't' for tables or 's' for sequences. Places that
* need to handle 'u' for unsupported relkinds need to do that explicitlyl
*/
static void
AssertObjectTypeValid(char objectType)
{
#ifdef USE_ASSERT_CHECKING
Assert(objectType == PUB_OBJTYPE_SEQUENCE || objectType == PUB_OBJTYPE_TABLE);
#endif
}
/*
* Determine object type given the object type set for a schema.
*/
char
pub_get_object_type_for_relkind(char relkind)
{
/* sequence maps directly to sequence relkind */
if (relkind == RELKIND_SEQUENCE)
return PUB_OBJTYPE_SEQUENCE;
/* for table, we match either regular or partitioned table */
if (relkind == RELKIND_RELATION ||
relkind == RELKIND_PARTITIONED_TABLE)
return PUB_OBJTYPE_TABLE;
return PUB_OBJTYPE_UNSUPPORTED;
}
/*
* Determine if publication object type matches the relkind.
*
* Returns true if the relation matches object type replicated by this schema,
* false otherwise.
*/
static bool
pub_object_type_matches_relkind(char objectType, char relkind)
{
AssertObjectTypeValid(objectType);
return (pub_get_object_type_for_relkind(relkind) == objectType);
}
/*
* Another variant of this, taking a Relation.
*/
@ -205,7 +253,7 @@ is_schema_publication(Oid pubid)
ObjectIdGetDatum(pubid));
scan = systable_beginscan(pubschsrel,
PublicationNamespacePnnspidPnpubidIndexId,
PublicationNamespacePnnspidPnpubidPntypeIndexId,
true, NULL, 1, &scankey);
tup = systable_getnext(scan);
result = HeapTupleIsValid(tup);
@ -313,7 +361,9 @@ GetTopMostAncestorInPublication(Oid puboid, List *ancestors, int *ancestor_level
}
else
{
aschemaPubids = GetSchemaPublications(get_rel_namespace(ancestor));
/* we only search for ancestors of tables, so PUB_OBJTYPE_TABLE */
aschemaPubids = GetSchemaPublications(get_rel_namespace(ancestor),
PUB_OBJTYPE_TABLE);
if (list_member_oid(aschemaPubids, puboid))
{
topmost_relid = ancestor;
@ -436,7 +486,7 @@ publication_add_relation(Oid pubid, PublicationRelInfo *pri,
* Insert new publication / schema mapping.
*/
ObjectAddress
publication_add_schema(Oid pubid, Oid schemaid, bool if_not_exists)
publication_add_schema(Oid pubid, Oid schemaid, char objectType, bool if_not_exists)
{
Relation rel;
HeapTuple tup;
@ -448,6 +498,8 @@ publication_add_schema(Oid pubid, Oid schemaid, bool if_not_exists)
ObjectAddress myself,
referenced;
AssertObjectTypeValid(objectType);
rel = table_open(PublicationNamespaceRelationId, RowExclusiveLock);
/*
@ -455,9 +507,10 @@ publication_add_schema(Oid pubid, Oid schemaid, bool if_not_exists)
* duplicates, it's here just to provide nicer error message in common
* case. The real protection is the unique key on the catalog.
*/
if (SearchSysCacheExists2(PUBLICATIONNAMESPACEMAP,
if (SearchSysCacheExists3(PUBLICATIONNAMESPACEMAP,
ObjectIdGetDatum(schemaid),
ObjectIdGetDatum(pubid)))
ObjectIdGetDatum(pubid),
CharGetDatum(objectType)))
{
table_close(rel, RowExclusiveLock);
@ -483,6 +536,8 @@ publication_add_schema(Oid pubid, Oid schemaid, bool if_not_exists)
ObjectIdGetDatum(pubid);
values[Anum_pg_publication_namespace_pnnspid - 1] =
ObjectIdGetDatum(schemaid);
values[Anum_pg_publication_namespace_pntype - 1] =
CharGetDatum(objectType);
tup = heap_form_tuple(RelationGetDescr(rel), values, nulls);
@ -508,7 +563,7 @@ publication_add_schema(Oid pubid, Oid schemaid, bool if_not_exists)
* publication_add_relation for why we need to consider all the
* partitions.
*/
schemaRels = GetSchemaPublicationRelations(schemaid,
schemaRels = GetSchemaPublicationRelations(schemaid, objectType,
PUBLICATION_PART_ALL);
InvalidatePublicationRels(schemaRels);
@ -542,11 +597,14 @@ GetRelationPublications(Oid relid)
/*
* Gets list of relation oids for a publication.
*
* This should only be used FOR TABLE publications, the FOR ALL TABLES
* should use GetAllTablesPublicationRelations().
* This should only be used FOR TABLE / FOR SEQUENCE publications, the FOR
* ALL TABLES / SEQUENCES should use GetAllTablesPublicationRelations()
* and GetAllSequencesPublicationRelations().
*
* XXX pub_partopt only matters for tables, not sequences.
*/
List *
GetPublicationRelations(Oid pubid, PublicationPartOpt pub_partopt)
GetPublicationRelations(Oid pubid, char objectType, PublicationPartOpt pub_partopt)
{
List *result;
Relation pubrelsrel;
@ -554,6 +612,8 @@ GetPublicationRelations(Oid pubid, PublicationPartOpt pub_partopt)
SysScanDesc scan;
HeapTuple tup;
AssertObjectTypeValid(objectType);
/* Find all publications associated with the relation. */
pubrelsrel = table_open(PublicationRelRelationId, AccessShareLock);
@ -568,11 +628,29 @@ GetPublicationRelations(Oid pubid, PublicationPartOpt pub_partopt)
result = NIL;
while (HeapTupleIsValid(tup = systable_getnext(scan)))
{
char relkind;
Form_pg_publication_rel pubrel;
pubrel = (Form_pg_publication_rel) GETSTRUCT(tup);
result = GetPubPartitionOptionRelations(result, pub_partopt,
pubrel->prrelid);
relkind = get_rel_relkind(pubrel->prrelid);
/*
* If the relkind does not match the requested object type, ignore the
* relation. For example we might be interested only in sequences, so
* we ignore tables.
*/
if (!pub_object_type_matches_relkind(objectType, relkind))
continue;
/*
* We don't have partitioned sequences, so just add them to the list.
* Otherwise consider adding all child relations, if requested.
*/
if (relkind == RELKIND_SEQUENCE)
result = lappend_oid(result, pubrel->prrelid);
else
result = GetPubPartitionOptionRelations(result, pub_partopt,
pubrel->prrelid);
}
systable_endscan(scan);
@ -622,6 +700,43 @@ GetAllTablesPublications(void)
return result;
}
/*
* Gets list of publication oids for publications marked as FOR ALL SEQUENCES.
*/
List *
GetAllSequencesPublications(void)
{
List *result;
Relation rel;
ScanKeyData scankey;
SysScanDesc scan;
HeapTuple tup;
/* Find all publications that are marked as for all sequences. */
rel = table_open(PublicationRelationId, AccessShareLock);
ScanKeyInit(&scankey,
Anum_pg_publication_puballsequences,
BTEqualStrategyNumber, F_BOOLEQ,
BoolGetDatum(true));
scan = systable_beginscan(rel, InvalidOid, false,
NULL, 1, &scankey);
result = NIL;
while (HeapTupleIsValid(tup = systable_getnext(scan)))
{
Oid oid = ((Form_pg_publication) GETSTRUCT(tup))->oid;
result = lappend_oid(result, oid);
}
systable_endscan(scan);
table_close(rel, AccessShareLock);
return result;
}
/*
* Gets list of all relation published by FOR ALL TABLES publication(s).
*
@ -688,28 +803,38 @@ GetAllTablesPublicationRelations(bool pubviaroot)
/*
* Gets the list of schema oids for a publication.
*
* This should only be used FOR ALL TABLES IN SCHEMA publications.
* This should only be used FOR ALL TABLES IN SCHEMA and FOR ALL SEQUENCES
* publications.
*
* 'objectType' determines whether to get FOR TABLE or FOR SEQUENCES schemas
*/
List *
GetPublicationSchemas(Oid pubid)
GetPublicationSchemas(Oid pubid, char objectType)
{
List *result = NIL;
Relation pubschsrel;
ScanKeyData scankey;
ScanKeyData scankey[2];
SysScanDesc scan;
HeapTuple tup;
AssertObjectTypeValid(objectType);
/* Find all schemas associated with the publication */
pubschsrel = table_open(PublicationNamespaceRelationId, AccessShareLock);
ScanKeyInit(&scankey,
ScanKeyInit(&scankey[0],
Anum_pg_publication_namespace_pnpubid,
BTEqualStrategyNumber, F_OIDEQ,
ObjectIdGetDatum(pubid));
ScanKeyInit(&scankey[1],
Anum_pg_publication_namespace_pntype,
BTEqualStrategyNumber, F_CHAREQ,
CharGetDatum(objectType));
scan = systable_beginscan(pubschsrel,
PublicationNamespacePnnspidPnpubidIndexId,
true, NULL, 1, &scankey);
PublicationNamespacePnnspidPnpubidPntypeIndexId,
true, NULL, 2, scankey);
while (HeapTupleIsValid(tup = systable_getnext(scan)))
{
Form_pg_publication_namespace pubsch;
@ -727,14 +852,26 @@ GetPublicationSchemas(Oid pubid)
/*
* Gets the list of publication oids associated with a specified schema.
*
* objectType specifies whether we're looking for schemas including tables or
* sequences.
*
* Note: relcache calls this for all object types, not just tables and sequences.
* Which is why we handle the PUB_OBJTYPE_UNSUPPORTED object type too.
*/
List *
GetSchemaPublications(Oid schemaid)
GetSchemaPublications(Oid schemaid, char objectType)
{
List *result = NIL;
CatCList *pubschlist;
int i;
/* unsupported object type */
if (objectType == PUB_OBJTYPE_UNSUPPORTED)
return result;
AssertObjectTypeValid(objectType);
/* Find all publications associated with the schema */
pubschlist = SearchSysCacheList1(PUBLICATIONNAMESPACEMAP,
ObjectIdGetDatum(schemaid));
@ -742,6 +879,11 @@ GetSchemaPublications(Oid schemaid)
{
HeapTuple tup = &pubschlist->members[i]->tuple;
Oid pubid = ((Form_pg_publication_namespace) GETSTRUCT(tup))->pnpubid;
char pntype = ((Form_pg_publication_namespace) GETSTRUCT(tup))->pntype;
/* Skip schemas publishing a different object type. */
if (pntype != objectType)
continue;
result = lappend_oid(result, pubid);
}
@ -753,9 +895,13 @@ GetSchemaPublications(Oid schemaid)
/*
* Get the list of publishable relation oids for a specified schema.
*
* objectType specifies whether this is FOR ALL TABLES IN SCHEMA or FOR ALL
* SEQUENCES IN SCHEMA
*/
List *
GetSchemaPublicationRelations(Oid schemaid, PublicationPartOpt pub_partopt)
GetSchemaPublicationRelations(Oid schemaid, char objectType,
PublicationPartOpt pub_partopt)
{
Relation classRel;
ScanKeyData key[1];
@ -764,6 +910,7 @@ GetSchemaPublicationRelations(Oid schemaid, PublicationPartOpt pub_partopt)
List *result = NIL;
Assert(OidIsValid(schemaid));
AssertObjectTypeValid(objectType);
classRel = table_open(RelationRelationId, AccessShareLock);
@ -784,9 +931,16 @@ GetSchemaPublicationRelations(Oid schemaid, PublicationPartOpt pub_partopt)
continue;
relkind = get_rel_relkind(relid);
if (relkind == RELKIND_RELATION)
result = lappend_oid(result, relid);
else if (relkind == RELKIND_PARTITIONED_TABLE)
/* Skip if the relkind does not match FOR ALL TABLES / SEQUENCES. */
if (!pub_object_type_matches_relkind(objectType, relkind))
continue;
/*
* If the object is a partitioned table, lookup all the child relations
* (if requested). Otherwise just add the object to the list.
*/
if (relkind == RELKIND_PARTITIONED_TABLE)
{
List *partitionrels = NIL;
@ -799,7 +953,11 @@ GetSchemaPublicationRelations(Oid schemaid, PublicationPartOpt pub_partopt)
pub_partopt,
relForm->oid);
result = list_concat_unique_oid(result, partitionrels);
continue;
}
/* non-partitioned tables and sequences */
result = lappend_oid(result, relid);
}
table_endscan(scan);
@ -809,27 +967,67 @@ GetSchemaPublicationRelations(Oid schemaid, PublicationPartOpt pub_partopt)
/*
* Gets the list of all relations published by FOR ALL TABLES IN SCHEMA
* publication.
* or FOR ALL SEQUENCES IN SCHEMA publication.
*/
List *
GetAllSchemaPublicationRelations(Oid pubid, PublicationPartOpt pub_partopt)
GetAllSchemaPublicationRelations(Oid pubid, char objectType,
PublicationPartOpt pub_partopt)
{
List *result = NIL;
List *pubschemalist = GetPublicationSchemas(pubid);
List *pubschemalist = GetPublicationSchemas(pubid, objectType);
ListCell *cell;
AssertObjectTypeValid(objectType);
foreach(cell, pubschemalist)
{
Oid schemaid = lfirst_oid(cell);
List *schemaRels = NIL;
schemaRels = GetSchemaPublicationRelations(schemaid, pub_partopt);
schemaRels = GetSchemaPublicationRelations(schemaid, objectType,
pub_partopt);
result = list_concat(result, schemaRels);
}
return result;
}
/*
* Gets list of all relation published by FOR ALL SEQUENCES publication(s).
*/
List *
GetAllSequencesPublicationRelations(void)
{
Relation classRel;
ScanKeyData key[1];
TableScanDesc scan;
HeapTuple tuple;
List *result = NIL;
classRel = table_open(RelationRelationId, AccessShareLock);
ScanKeyInit(&key[0],
Anum_pg_class_relkind,
BTEqualStrategyNumber, F_CHAREQ,
CharGetDatum(RELKIND_SEQUENCE));
scan = table_beginscan_catalog(classRel, 1, key);
while ((tuple = heap_getnext(scan, ForwardScanDirection)) != NULL)
{
Form_pg_class relForm = (Form_pg_class) GETSTRUCT(tuple);
Oid relid = relForm->oid;
if (is_publishable_class(relid, relForm))
result = lappend_oid(result, relid);
}
table_endscan(scan);
table_close(classRel, AccessShareLock);
return result;
}
/*
* Get publication using oid
*
@ -852,10 +1050,12 @@ GetPublication(Oid pubid)
pub->oid = pubid;
pub->name = pstrdup(NameStr(pubform->pubname));
pub->alltables = pubform->puballtables;
pub->allsequences = pubform->puballsequences;
pub->pubactions.pubinsert = pubform->pubinsert;
pub->pubactions.pubupdate = pubform->pubupdate;
pub->pubactions.pubdelete = pubform->pubdelete;
pub->pubactions.pubtruncate = pubform->pubtruncate;
pub->pubactions.pubsequence = pubform->pubsequence;
pub->pubviaroot = pubform->pubviaroot;
ReleaseSysCache(tup);
@ -966,10 +1166,12 @@ pg_get_publication_tables(PG_FUNCTION_ARGS)
*schemarelids;
relids = GetPublicationRelations(publication->oid,
PUB_OBJTYPE_TABLE,
publication->pubviaroot ?
PUBLICATION_PART_ROOT :
PUBLICATION_PART_LEAF);
schemarelids = GetAllSchemaPublicationRelations(publication->oid,
PUB_OBJTYPE_TABLE,
publication->pubviaroot ?
PUBLICATION_PART_ROOT :
PUBLICATION_PART_LEAF);
@ -1005,3 +1207,71 @@ pg_get_publication_tables(PG_FUNCTION_ARGS)
SRF_RETURN_DONE(funcctx);
}
/*
* Returns Oids of sequences in a publication.
*/
Datum
pg_get_publication_sequences(PG_FUNCTION_ARGS)
{
FuncCallContext *funcctx;
char *pubname = text_to_cstring(PG_GETARG_TEXT_PP(0));
Publication *publication;
List *sequences;
/* stuff done only on the first call of the function */
if (SRF_IS_FIRSTCALL())
{
MemoryContext oldcontext;
/* create a function context for cross-call persistence */
funcctx = SRF_FIRSTCALL_INIT();
/* switch to memory context appropriate for multiple function calls */
oldcontext = MemoryContextSwitchTo(funcctx->multi_call_memory_ctx);
publication = GetPublicationByName(pubname, false);
/*
* Publications support partitioned tables, although all changes are
* replicated using leaf partition identity and schema, so we only
* need those.
*/
if (publication->allsequences)
sequences = GetAllSequencesPublicationRelations();
else
{
List *relids,
*schemarelids;
relids = GetPublicationRelations(publication->oid,
PUB_OBJTYPE_SEQUENCE,
publication->pubviaroot ?
PUBLICATION_PART_ROOT :
PUBLICATION_PART_LEAF);
schemarelids = GetAllSchemaPublicationRelations(publication->oid,
PUB_OBJTYPE_SEQUENCE,
publication->pubviaroot ?
PUBLICATION_PART_ROOT :
PUBLICATION_PART_LEAF);
sequences = list_concat_unique_oid(relids, schemarelids);
}
funcctx->user_fctx = (void *) sequences;
MemoryContextSwitchTo(oldcontext);
}
/* stuff done on every call of the function */
funcctx = SRF_PERCALL_SETUP();
sequences = (List *) funcctx->user_fctx;
if (funcctx->call_cntr < list_length(sequences))
{
Oid relid = list_nth_oid(sequences, funcctx->call_cntr);
SRF_RETURN_NEXT(funcctx, ObjectIdGetDatum(relid));
}
SRF_RETURN_DONE(funcctx);
}

10
src/backend/catalog/system_views.sql
View File

@ -374,6 +374,16 @@ CREATE VIEW pg_publication_tables AS
pg_class C JOIN pg_namespace N ON (N.oid = C.relnamespace)
WHERE C.oid = GPT.relid;
CREATE VIEW pg_publication_sequences AS
SELECT
P.pubname AS pubname,
N.nspname AS schemaname,
C.relname AS sequencename
FROM pg_publication P,
LATERAL pg_get_publication_sequences(P.pubname) GPS,
pg_class C JOIN pg_namespace N ON (N.oid = C.relnamespace)
WHERE C.oid = GPS.relid;
CREATE VIEW pg_locks AS
SELECT * FROM pg_lock_status() AS L;

424
src/backend/commands/publicationcmds.c
View File

@ -16,6 +16,7 @@
#include "access/genam.h"
#include "access/htup_details.h"
#include "access/relation.h"
#include "access/table.h"
#include "access/xact.h"
#include "catalog/catalog.h"
@ -67,15 +68,17 @@ typedef struct rf_context
} rf_context;
static List *OpenRelIdList(List *relids);
static List *OpenTableList(List *tables);
static void CloseTableList(List *rels);
static List *OpenRelationList(List *rels, char objectType);
static void CloseRelationList(List *rels);
static void LockSchemaList(List *schemalist);
static void PublicationAddTables(Oid pubid, List *rels, bool if_not_exists,
static void PublicationAddRelations(Oid pubid, List *rels, bool if_not_exists,
AlterPublicationStmt *stmt);
static void PublicationDropTables(Oid pubid, List *rels, bool missing_ok);
static void PublicationAddSchemas(Oid pubid, List *schemas, bool if_not_exists,
AlterPublicationStmt *stmt);
static void PublicationDropSchemas(Oid pubid, List *schemas, bool missing_ok);
static void PublicationDropRelations(Oid pubid, List *rels, bool missing_ok);
static void PublicationAddSchemas(Oid pubid, List *schemas, char objectType,
bool if_not_exists, AlterPublicationStmt *stmt);
static void PublicationDropSchemas(Oid pubid, List *schemas, char objectType,
bool missing_ok);
static void
parse_publication_options(ParseState *pstate,
@ -95,6 +98,7 @@ parse_publication_options(ParseState *pstate,
pubactions->pubupdate = true;
pubactions->pubdelete = true;
pubactions->pubtruncate = true;
pubactions->pubsequence = true;
*publish_via_partition_root = false;
/* Parse options */
@ -119,6 +123,7 @@ parse_publication_options(ParseState *pstate,
pubactions->pubupdate = false;
pubactions->pubdelete = false;
pubactions->pubtruncate = false;
pubactions->pubsequence = false;
*publish_given = true;
publish = defGetString(defel);
@ -141,6 +146,8 @@ parse_publication_options(ParseState *pstate,
pubactions->pubdelete = true;
else if (strcmp(publish_opt, "truncate") == 0)
pubactions->pubtruncate = true;
else if (strcmp(publish_opt, "sequence") == 0)
pubactions->pubsequence = true;
else
ereport(ERROR,
(errcode(ERRCODE_SYNTAX_ERROR),
@ -167,7 +174,9 @@ parse_publication_options(ParseState *pstate,
*/
static void
ObjectsInPublicationToOids(List *pubobjspec_list, ParseState *pstate,
List **rels, List **schemas)
List **tables, List **sequences,
List **tables_schemas, List **sequences_schemas,
List **schemas)
{
ListCell *cell;
PublicationObjSpec *pubobj;
@ -185,12 +194,23 @@ ObjectsInPublicationToOids(List *pubobjspec_list, ParseState *pstate,
switch (pubobj->pubobjtype)
{
case PUBLICATIONOBJ_TABLE:
*rels = lappend(*rels, pubobj->pubtable);
*tables = lappend(*tables, pubobj->pubtable);
break;
case PUBLICATIONOBJ_SEQUENCE:
*sequences = lappend(*sequences, pubobj->pubtable);
break;
case PUBLICATIONOBJ_TABLES_IN_SCHEMA:
schemaid = get_namespace_oid(pubobj->name, false);
/* Filter out duplicates if user specifies "sch1, sch1" */
*tables_schemas = list_append_unique_oid(*tables_schemas, schemaid);
*schemas = list_append_unique_oid(*schemas, schemaid);
break;
case PUBLICATIONOBJ_SEQUENCES_IN_SCHEMA:
schemaid = get_namespace_oid(pubobj->name, false);
/* Filter out duplicates if user specifies "sch1, sch1" */
*sequences_schemas = list_append_unique_oid(*sequences_schemas, schemaid);
*schemas = list_append_unique_oid(*schemas, schemaid);
break;
case PUBLICATIONOBJ_TABLES_IN_CUR_SCHEMA:
@ -204,6 +224,21 @@ ObjectsInPublicationToOids(List *pubobjspec_list, ParseState *pstate,
list_free(search_path);
/* Filter out duplicates if user specifies "sch1, sch1" */
*tables_schemas = list_append_unique_oid(*tables_schemas, schemaid);
*schemas = list_append_unique_oid(*schemas, schemaid);
break;
case PUBLICATIONOBJ_SEQUENCES_IN_CUR_SCHEMA:
search_path = fetch_search_path(false);
if (search_path == NIL) /* nothing valid in search_path? */
ereport(ERROR,
errcode(ERRCODE_UNDEFINED_SCHEMA),
errmsg("no schema has been selected for CURRENT_SCHEMA"));
schemaid = linitial_oid(search_path);
list_free(search_path);
/* Filter out duplicates if user specifies "sch1, sch1" */
*sequences_schemas = list_append_unique_oid(*sequences_schemas, schemaid);
*schemas = list_append_unique_oid(*schemas, schemaid);
break;
default:
@ -240,6 +275,14 @@ CheckObjSchemaNotAlreadyInPublication(List *rels, List *schemaidlist,
errdetail("Table \"%s\" in schema \"%s\" is already part of the publication, adding the same schema is not supported.",
RelationGetRelationName(rel),
get_namespace_name(relSchemaId)));
else if (checkobjtype == PUBLICATIONOBJ_SEQUENCES_IN_SCHEMA)
ereport(ERROR,
errcode(ERRCODE_INVALID_PARAMETER_VALUE),
errmsg("cannot add schema \"%s\" to publication",
get_namespace_name(relSchemaId)),
errdetail("Sequence \"%s\" in schema \"%s\" is already part of the publication, adding the same schema is not supported.",
RelationGetRelationName(rel),
get_namespace_name(relSchemaId)));
else if (checkobjtype == PUBLICATIONOBJ_TABLE)
ereport(ERROR,
errcode(ERRCODE_INVALID_PARAMETER_VALUE),
@ -248,6 +291,14 @@ CheckObjSchemaNotAlreadyInPublication(List *rels, List *schemaidlist,
RelationGetRelationName(rel)),
errdetail("Table's schema \"%s\" is already part of the publication or part of the specified schema list.",
get_namespace_name(relSchemaId)));
else if (checkobjtype == PUBLICATIONOBJ_SEQUENCE)
ereport(ERROR,
errcode(ERRCODE_INVALID_PARAMETER_VALUE),
errmsg("cannot add relation \"%s.%s\" to publication",
get_namespace_name(relSchemaId),
RelationGetRelationName(rel)),
errdetail("Sequence's schema \"%s\" is already part of the publication or part of the specified schema list.",
get_namespace_name(relSchemaId)));
}
}
}
@ -615,6 +666,7 @@ TransformPubWhereClauses(List *tables, const char *queryString,
ObjectAddress
CreatePublication(ParseState *pstate, CreatePublicationStmt *stmt)
{
ListCell *lc;
Relation rel;
ObjectAddress myself;
Oid puboid;
@ -626,9 +678,25 @@ CreatePublication(ParseState *pstate, CreatePublicationStmt *stmt)
bool publish_via_partition_root_given;
bool publish_via_partition_root;
AclResult aclresult;
List *relations = NIL;
List *tables = NIL;
List *sequences = NIL;
List *tables_schemaidlist = NIL;
List *sequences_schemaidlist = NIL;
List *schemaidlist = NIL;
bool for_all_tables = false;
bool for_all_sequences = false;
/* Translate the list of object types (represented by strings) to bool flags. */
foreach (lc, stmt->for_all_objects)
{
char *val = strVal(lfirst(lc));
if (strcmp(val, "tables") == 0)
for_all_tables = true;
else if (strcmp(val, "sequences") == 0)
for_all_sequences = true;
}
/* must have CREATE privilege on database */
aclresult = pg_database_aclcheck(MyDatabaseId, GetUserId(), ACL_CREATE);
if (aclresult != ACLCHECK_OK)
@ -636,7 +704,7 @@ CreatePublication(ParseState *pstate, CreatePublicationStmt *stmt)
get_database_name(MyDatabaseId));
/* FOR ALL TABLES requires superuser */
if (stmt->for_all_tables && !superuser())
if (for_all_tables && !superuser())
ereport(ERROR,
(errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
errmsg("must be superuser to create FOR ALL TABLES publication")));
@ -672,7 +740,9 @@ CreatePublication(ParseState *pstate, CreatePublicationStmt *stmt)
Anum_pg_publication_oid);
values[Anum_pg_publication_oid - 1] = ObjectIdGetDatum(puboid);
values[Anum_pg_publication_puballtables - 1] =
BoolGetDatum(stmt->for_all_tables);
BoolGetDatum(for_all_tables);
values[Anum_pg_publication_puballsequences - 1] =
BoolGetDatum(for_all_sequences);
values[Anum_pg_publication_pubinsert - 1] =
BoolGetDatum(pubactions.pubinsert);
values[Anum_pg_publication_pubupdate - 1] =
@ -681,6 +751,8 @@ CreatePublication(ParseState *pstate, CreatePublicationStmt *stmt)
BoolGetDatum(pubactions.pubdelete);
values[Anum_pg_publication_pubtruncate - 1] =
BoolGetDatum(pubactions.pubtruncate);
values[Anum_pg_publication_pubsequence - 1] =
BoolGetDatum(pubactions.pubsequence);
values[Anum_pg_publication_pubviaroot - 1] =
BoolGetDatum(publish_via_partition_root);
@ -698,45 +770,88 @@ CreatePublication(ParseState *pstate, CreatePublicationStmt *stmt)
CommandCounterIncrement();
/* Associate objects with the publication. */
if (stmt->for_all_tables)
if (for_all_tables || for_all_sequences)
{
/* Invalidate relcache so that publication info is rebuilt. */
CacheInvalidateRelcacheAll();
}
else
/*
* If the publication might have either tables or sequences (directly or
* through a schema), process that.
*/
if (!for_all_tables || !for_all_sequences)
{
ObjectsInPublicationToOids(stmt->pubobjects, pstate, &relations,
ObjectsInPublicationToOids(stmt->pubobjects, pstate,
&tables, &sequences,
&tables_schemaidlist,
&sequences_schemaidlist,
&schemaidlist);
/* FOR ALL TABLES IN SCHEMA requires superuser */
if (list_length(schemaidlist) > 0 && !superuser())
if (list_length(tables_schemaidlist) > 0 && !superuser())
ereport(ERROR,
errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
errmsg("must be superuser to create FOR ALL TABLES IN SCHEMA publication"));
if (list_length(relations) > 0)
/* FOR ALL SEQUENCES IN SCHEMA requires superuser */
if (list_length(sequences_schemaidlist) > 0 && !superuser())
ereport(ERROR,
errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
errmsg("must be superuser to create FOR ALL SEQUENCES IN SCHEMA publication"));
/* tables added directly */
if (list_length(tables) > 0)
{
List *rels;
rels = OpenTableList(relations);
CheckObjSchemaNotAlreadyInPublication(rels, schemaidlist,
rels = OpenRelationList(tables, PUB_OBJTYPE_TABLE);
CheckObjSchemaNotAlreadyInPublication(rels, tables_schemaidlist,
PUBLICATIONOBJ_TABLE);
TransformPubWhereClauses(rels, pstate->p_sourcetext,
publish_via_partition_root);
PublicationAddTables(puboid, rels, true, NULL);
CloseTableList(rels);
PublicationAddRelations(puboid, rels, true, NULL);
CloseRelationList(rels);
}
if (list_length(schemaidlist) > 0)
/* sequences added directly */
if (list_length(sequences) > 0)
{
List *rels;
rels = OpenRelationList(sequences, PUB_OBJTYPE_SEQUENCE);
CheckObjSchemaNotAlreadyInPublication(rels, sequences_schemaidlist,
PUBLICATIONOBJ_SEQUENCE);
PublicationAddRelations(puboid, rels, true, NULL);
CloseRelationList(rels);
}
/* tables added through a schema */
if (list_length(tables_schemaidlist) > 0)
{
/*
* Schema lock is held until the publication is created to prevent
* concurrent schema deletion.
*/
LockSchemaList(schemaidlist);
PublicationAddSchemas(puboid, schemaidlist, true, NULL);
LockSchemaList(tables_schemaidlist);
PublicationAddSchemas(puboid,
tables_schemaidlist, PUB_OBJTYPE_TABLE,
true, NULL);
}
/* sequences added through a schema */
if (list_length(sequences_schemaidlist) > 0)
{
/*
* Schema lock is held until the publication is created to prevent
* concurrent schema deletion.
*/
LockSchemaList(sequences_schemaidlist);
PublicationAddSchemas(puboid,
sequences_schemaidlist, PUB_OBJTYPE_SEQUENCE,
true, NULL);
}
}
@ -799,6 +914,7 @@ AlterPublicationOptions(ParseState *pstate, AlterPublicationStmt *stmt,
AccessShareLock);
root_relids = GetPublicationRelations(pubform->oid,
PUB_OBJTYPE_TABLE,
PUBLICATION_PART_ROOT);
foreach(lc, root_relids)
@ -857,6 +973,9 @@ AlterPublicationOptions(ParseState *pstate, AlterPublicationStmt *stmt,
values[Anum_pg_publication_pubtruncate - 1] = BoolGetDatum(pubactions.pubtruncate);
replaces[Anum_pg_publication_pubtruncate - 1] = true;
values[Anum_pg_publication_pubsequence - 1] = BoolGetDatum(pubactions.pubsequence);
replaces[Anum_pg_publication_pubsequence - 1] = true;
}
if (publish_via_partition_root_given)
@ -876,7 +995,7 @@ AlterPublicationOptions(ParseState *pstate, AlterPublicationStmt *stmt,
pubform = (Form_pg_publication) GETSTRUCT(tup);
/* Invalidate the relcache. */
if (pubform->puballtables)
if (pubform->puballtables || pubform->puballsequences)
{
CacheInvalidateRelcacheAll();
}
@ -892,6 +1011,7 @@ AlterPublicationOptions(ParseState *pstate, AlterPublicationStmt *stmt,
*/
if (root_relids == NIL)
relids = GetPublicationRelations(pubform->oid,
PUB_OBJTYPE_TABLE,
PUBLICATION_PART_ALL);
else
{
@ -905,7 +1025,20 @@ AlterPublicationOptions(ParseState *pstate, AlterPublicationStmt *stmt,
lfirst_oid(lc));
}
/* tables */
schemarelids = GetAllSchemaPublicationRelations(pubform->oid,
PUB_OBJTYPE_TABLE,
PUBLICATION_PART_ALL);
relids = list_concat_unique_oid(relids, schemarelids);
/* sequences */
relids = list_concat_unique_oid(relids,
GetPublicationRelations(pubform->oid,
PUB_OBJTYPE_SEQUENCE,
PUBLICATION_PART_ALL));
schemarelids = GetAllSchemaPublicationRelations(pubform->oid,
PUB_OBJTYPE_SEQUENCE,
PUBLICATION_PART_ALL);
relids = list_concat_unique_oid(relids, schemarelids);
@ -960,7 +1093,7 @@ AlterPublicationTables(AlterPublicationStmt *stmt, HeapTuple tup,
if (!tables && stmt->action != AP_SetObjects)
return;
rels = OpenTableList(tables);
rels = OpenRelationList(tables, PUB_OBJTYPE_TABLE);
if (stmt->action == AP_AddObjects)
{
@ -970,19 +1103,22 @@ AlterPublicationTables(AlterPublicationStmt *stmt, HeapTuple tup,
* Check if the relation is member of the existing schema in the
* publication or member of the schema list specified.
*/
schemas = list_concat_copy(schemaidlist, GetPublicationSchemas(pubid));
schemas = list_concat_copy(schemaidlist,
GetPublicationSchemas(pubid,
PUB_OBJTYPE_TABLE));
CheckObjSchemaNotAlreadyInPublication(rels, schemas,
PUBLICATIONOBJ_TABLE);
TransformPubWhereClauses(rels, queryString, pubform->pubviaroot);
PublicationAddTables(pubid, rels, false, stmt);
PublicationAddRelations(pubid, rels, false, stmt);
}
else if (stmt->action == AP_DropObjects)
PublicationDropTables(pubid, rels, false);
PublicationDropRelations(pubid, rels, false);
else /* AP_SetObjects */
{
List *oldrelids = GetPublicationRelations(pubid,
PUB_OBJTYPE_TABLE,
PUBLICATION_PART_ROOT);
List *delrels = NIL;
ListCell *oldlc;
@ -1064,18 +1200,18 @@ AlterPublicationTables(AlterPublicationStmt *stmt, HeapTuple tup,
}
/* And drop them. */
PublicationDropTables(pubid, delrels, true);
PublicationDropRelations(pubid, delrels, true);
/*
* Don't bother calculating the difference for adding, we'll catch and
* skip existing ones when doing catalog update.
*/
PublicationAddTables(pubid, rels, true, stmt);
PublicationAddRelations(pubid, rels, true, stmt);
CloseTableList(delrels);
CloseRelationList(delrels);
}
CloseTableList(rels);
CloseRelationList(rels);
}
/*
@ -1085,7 +1221,8 @@ AlterPublicationTables(AlterPublicationStmt *stmt, HeapTuple tup,
*/
static void
AlterPublicationSchemas(AlterPublicationStmt *stmt,
HeapTuple tup, List *schemaidlist)
HeapTuple tup, List *schemaidlist,
char objectType)
{
Form_pg_publication pubform = (Form_pg_publication) GETSTRUCT(tup);
@ -1107,20 +1244,20 @@ AlterPublicationSchemas(AlterPublicationStmt *stmt,
List *rels;
List *reloids;
reloids = GetPublicationRelations(pubform->oid, PUBLICATION_PART_ROOT);
reloids = GetPublicationRelations(pubform->oid, objectType, PUBLICATION_PART_ROOT);
rels = OpenRelIdList(reloids);
CheckObjSchemaNotAlreadyInPublication(rels, schemaidlist,
PUBLICATIONOBJ_TABLES_IN_SCHEMA);
CloseTableList(rels);
PublicationAddSchemas(pubform->oid, schemaidlist, false, stmt);
CloseRelationList(rels);
PublicationAddSchemas(pubform->oid, schemaidlist, objectType, false, stmt);
}
else if (stmt->action == AP_DropObjects)
PublicationDropSchemas(pubform->oid, schemaidlist, false);
PublicationDropSchemas(pubform->oid, schemaidlist, objectType, false);
else /* AP_SetObjects */
{
List *oldschemaids = GetPublicationSchemas(pubform->oid);
List *oldschemaids = GetPublicationSchemas(pubform->oid, objectType);
List *delschemas = NIL;
/* Identify which schemas should be dropped */
@ -1133,13 +1270,13 @@ AlterPublicationSchemas(AlterPublicationStmt *stmt,
LockSchemaList(delschemas);
/* And drop them */
PublicationDropSchemas(pubform->oid, delschemas, true);
PublicationDropSchemas(pubform->oid, delschemas, objectType, true);
/*
* Don't bother calculating the difference for adding, we'll catch and
* skip existing ones when doing catalog update.
*/
PublicationAddSchemas(pubform->oid, schemaidlist, true, stmt);
PublicationAddSchemas(pubform->oid, schemaidlist, objectType, true, stmt);
}
}
@ -1149,12 +1286,13 @@ AlterPublicationSchemas(AlterPublicationStmt *stmt,
*/
static void
CheckAlterPublication(AlterPublicationStmt *stmt, HeapTuple tup,
List *tables, List *schemaidlist)
List *tables, List *tables_schemaidlist,
List *sequences, List *sequences_schemaidlist)
{
Form_pg_publication pubform = (Form_pg_publication) GETSTRUCT(tup);
if ((stmt->action == AP_AddObjects || stmt->action == AP_SetObjects) &&
schemaidlist && !superuser())
(tables_schemaidlist || sequences_schemaidlist) && !superuser())
ereport(ERROR,
(errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
errmsg("must be superuser to add or set schemas")));
@ -1163,13 +1301,24 @@ CheckAlterPublication(AlterPublicationStmt *stmt, HeapTuple tup,
* Check that user is allowed to manipulate the publication tables in
* schema
*/
if (schemaidlist && pubform->puballtables)
if (tables_schemaidlist && pubform->puballtables)
ereport(ERROR,
(errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
errmsg("publication \"%s\" is defined as FOR ALL TABLES",
NameStr(pubform->pubname)),
errdetail("Tables from schema cannot be added to, dropped from, or set on FOR ALL TABLES publications.")));
/*
* Check that user is allowed to manipulate the publication sequences in
* schema
*/
if (sequences_schemaidlist && pubform->puballsequences)
ereport(ERROR,
(errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
errmsg("publication \"%s\" is defined as FOR ALL SEQUENCES",
NameStr(pubform->pubname)),
errdetail("Sequences from schema cannot be added to, dropped from, or set on FOR ALL SEQUENCES publications.")));
/* Check that user is allowed to manipulate the publication tables. */
if (tables && pubform->puballtables)
ereport(ERROR,
@ -1177,6 +1326,107 @@ CheckAlterPublication(AlterPublicationStmt *stmt, HeapTuple tup,
errmsg("publication \"%s\" is defined as FOR ALL TABLES",
NameStr(pubform->pubname)),
errdetail("Tables cannot be added to or dropped from FOR ALL TABLES publications.")));
/* Check that user is allowed to manipulate the publication tables. */
if (sequences && pubform->puballsequences)
ereport(ERROR,
(errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
errmsg("publication \"%s\" is defined as FOR ALL SEQUENCES",
NameStr(pubform->pubname)),
errdetail("Sequences cannot be added to or dropped from FOR ALL SEQUENCES publications.")));
}
/*
* Add or remove sequence to/from publication.
*/
static void
AlterPublicationSequences(AlterPublicationStmt *stmt, HeapTuple tup,
List *sequences, List *schemaidlist)
{
List *rels = NIL;
Form_pg_publication pubform = (Form_pg_publication) GETSTRUCT(tup);
Oid pubid = pubform->oid;
/*
* It is quite possible that for the SET case user has not specified any
* tables in which case we need to remove all the existing tables.
*/
if (!sequences && stmt->action != AP_SetObjects)
return;
rels = OpenRelationList(sequences, PUB_OBJTYPE_SEQUENCE);
if (stmt->action == AP_AddObjects)
{
List *schemas = NIL;
/*
* Check if the relation is member of the existing schema in the
* publication or member of the schema list specified.
*/
schemas = list_concat_copy(schemaidlist,
GetPublicationSchemas(pubid,
PUB_OBJTYPE_SEQUENCE));
CheckObjSchemaNotAlreadyInPublication(rels, schemas,
PUBLICATIONOBJ_SEQUENCE);
PublicationAddRelations(pubid, rels, false, stmt);
}
else if (stmt->action == AP_DropObjects)
PublicationDropRelations(pubid, rels, false);
else /* DEFELEM_SET */
{
List *oldrelids = GetPublicationRelations(pubid,
PUB_OBJTYPE_SEQUENCE,
PUBLICATION_PART_ROOT);
List *delrels = NIL;
ListCell *oldlc;
CheckObjSchemaNotAlreadyInPublication(rels, schemaidlist,
PUBLICATIONOBJ_SEQUENCE);
/* Calculate which relations to drop. */
foreach(oldlc, oldrelids)
{
Oid oldrelid = lfirst_oid(oldlc);
ListCell *newlc;
PublicationRelInfo *oldrel;
bool found = false;
foreach(newlc, rels)
{
PublicationRelInfo *newpubrel;
newpubrel = (PublicationRelInfo *) lfirst(newlc);
if (RelationGetRelid(newpubrel->relation) == oldrelid)
{
found = true;
break;
}
}
/* Not yet in the list, open it and add to the list */
if (!found)
{
oldrel = palloc(sizeof(PublicationRelInfo));
oldrel->whereClause = NULL;
oldrel->relation = table_open(oldrelid,
ShareUpdateExclusiveLock);
delrels = lappend(delrels, oldrel);
}
}
/* And drop them. */
PublicationDropRelations(pubid, delrels, true);
/*
* Don't bother calculating the difference for adding, we'll catch and
* skip existing ones when doing catalog update.
*/
PublicationAddRelations(pubid, rels, true, stmt);
CloseRelationList(delrels);
}
CloseRelationList(rels);
}
/*
@ -1214,14 +1464,22 @@ AlterPublication(ParseState *pstate, AlterPublicationStmt *stmt)
AlterPublicationOptions(pstate, stmt, rel, tup);
else
{
List *relations = NIL;
List *tables = NIL;
List *sequences = NIL;
List *tables_schemaidlist = NIL;
List *sequences_schemaidlist = NIL;
List *schemaidlist = NIL;
Oid pubid = pubform->oid;
ObjectsInPublicationToOids(stmt->pubobjects, pstate, &relations,
ObjectsInPublicationToOids(stmt->pubobjects, pstate,
&tables, &sequences,
&tables_schemaidlist,
&sequences_schemaidlist,
&schemaidlist);
CheckAlterPublication(stmt, tup, relations, schemaidlist);
CheckAlterPublication(stmt, tup,
tables, tables_schemaidlist,
sequences, sequences_schemaidlist);
heap_freetuple(tup);
@ -1249,9 +1507,16 @@ AlterPublication(ParseState *pstate, AlterPublicationStmt *stmt)
errmsg("publication \"%s\" does not exist",
stmt->pubname));
AlterPublicationTables(stmt, tup, relations, schemaidlist,
AlterPublicationTables(stmt, tup, tables, tables_schemaidlist,
pstate->p_sourcetext);
AlterPublicationSchemas(stmt, tup, schemaidlist);
AlterPublicationSequences(stmt, tup, sequences, sequences_schemaidlist);
AlterPublicationSchemas(stmt, tup, tables_schemaidlist,
PUB_OBJTYPE_TABLE);
AlterPublicationSchemas(stmt, tup, sequences_schemaidlist,
PUB_OBJTYPE_SEQUENCE);
}
/* Cleanup. */
@ -1319,7 +1584,7 @@ RemovePublicationById(Oid pubid)
pubform = (Form_pg_publication) GETSTRUCT(tup);
/* Invalidate relcache so that publication info is rebuilt. */
if (pubform->puballtables)
if (pubform->puballtables || pubform->puballsequences)
CacheInvalidateRelcacheAll();
CatalogTupleDelete(rel, &tup->t_self);
@ -1355,6 +1620,7 @@ RemovePublicationSchemaById(Oid psoid)
* partitions.
*/
schemaRels = GetSchemaPublicationRelations(pubsch->pnnspid,
pubsch->pntype,
PUBLICATION_PART_ALL);
InvalidatePublicationRels(schemaRels);
@ -1397,29 +1663,45 @@ OpenRelIdList(List *relids)
* add them to a publication.
*/
static List *
OpenTableList(List *tables)
OpenRelationList(List *rels, char objectType)
{
List *relids = NIL;
List *rels = NIL;
List *result = NIL;
ListCell *lc;
List *relids_with_rf = NIL;
/*
* Open, share-lock, and check all the explicitly-specified relations
*/
foreach(lc, tables)
foreach(lc, rels)
{
PublicationTable *t = lfirst_node(PublicationTable, lc);
bool recurse = t->relation->inh;
Relation rel;
Oid myrelid;
PublicationRelInfo *pub_rel;
char myrelkind;
/* Allow query cancel in case this takes a long time */
CHECK_FOR_INTERRUPTS();
rel = table_openrv(t->relation, ShareUpdateExclusiveLock);
myrelid = RelationGetRelid(rel);
myrelkind = get_rel_relkind(myrelid);
/*
* Make sure the relkind matches the expected object type. This may
* happen e.g. when adding a sequence using ADD TABLE or a table
* using ADD SEQUENCE).
*
* XXX We let through unsupported object types (views etc.). Those
* will be caught later in check_publication_add_relation.
*/
if (pub_get_object_type_for_relkind(myrelkind) != PUB_OBJTYPE_UNSUPPORTED &&
pub_get_object_type_for_relkind(myrelkind) != objectType)
ereport(ERROR,
errcode(ERRCODE_INVALID_PARAMETER_VALUE),
errmsg("object type does not match type expected by command"));
/*
* Filter out duplicates if user specifies "foo, foo".
@ -1444,7 +1726,7 @@ OpenTableList(List *tables)
pub_rel = palloc(sizeof(PublicationRelInfo));
pub_rel->relation = rel;
pub_rel->whereClause = t->whereClause;
rels = lappend(rels, pub_rel);
result = lappend(result, pub_rel);
relids = lappend_oid(relids, myrelid);
if (t->whereClause)
@ -1498,7 +1780,7 @@ OpenTableList(List *tables)
pub_rel->relation = rel;
/* child inherits WHERE clause from parent */
pub_rel->whereClause = t->whereClause;
rels = lappend(rels, pub_rel);
result = lappend(result, pub_rel);
relids = lappend_oid(relids, childrelid);
if (t->whereClause)
@ -1510,14 +1792,14 @@ OpenTableList(List *tables)
list_free(relids);
list_free(relids_with_rf);
return rels;
return result;
}
/*
* Close all relations in the list.
*/
static void
CloseTableList(List *rels)
CloseRelationList(List *rels)
{
ListCell *lc;
@ -1565,12 +1847,12 @@ LockSchemaList(List *schemalist)
* Add listed tables to the publication.
*/
static void
PublicationAddTables(Oid pubid, List *rels, bool if_not_exists,
PublicationAddRelations(Oid pubid, List *rels, bool if_not_exists,
AlterPublicationStmt *stmt)
{
ListCell *lc;
Assert(!stmt || !stmt->for_all_tables);
Assert(!stmt || !stmt->for_all_objects);
foreach(lc, rels)
{
@ -1599,7 +1881,7 @@ PublicationAddTables(Oid pubid, List *rels, bool if_not_exists,
* Remove listed tables from the publication.
*/
static void
PublicationDropTables(Oid pubid, List *rels, bool missing_ok)
PublicationDropRelations(Oid pubid, List *rels, bool missing_ok)
{
ObjectAddress obj;
ListCell *lc;
@ -1639,19 +1921,19 @@ PublicationDropTables(Oid pubid, List *rels, bool missing_ok)
* Add listed schemas to the publication.
*/
static void
PublicationAddSchemas(Oid pubid, List *schemas, bool if_not_exists,
AlterPublicationStmt *stmt)
PublicationAddSchemas(Oid pubid, List *schemas, char objectType,
bool if_not_exists, AlterPublicationStmt *stmt)
{
ListCell *lc;
Assert(!stmt || !stmt->for_all_tables);
Assert(!stmt || !stmt->for_all_objects);
foreach(lc, schemas)
{
Oid schemaid = lfirst_oid(lc);
ObjectAddress obj;
obj = publication_add_schema(pubid, schemaid, if_not_exists);
obj = publication_add_schema(pubid, schemaid, objectType, if_not_exists);
if (stmt)
{
EventTriggerCollectSimpleCommand(obj, InvalidObjectAddress,
@ -1667,7 +1949,7 @@ PublicationAddSchemas(Oid pubid, List *schemas, bool if_not_exists,
* Remove listed schemas from the publication.
*/
static void
PublicationDropSchemas(Oid pubid, List *schemas, bool missing_ok)
PublicationDropSchemas(Oid pubid, List *schemas, char objectType, bool missing_ok)
{
ObjectAddress obj;
ListCell *lc;
@ -1677,10 +1959,11 @@ PublicationDropSchemas(Oid pubid, List *schemas, bool missing_ok)
{
Oid schemaid = lfirst_oid(lc);
psid = GetSysCacheOid2(PUBLICATIONNAMESPACEMAP,
psid = GetSysCacheOid3(PUBLICATIONNAMESPACEMAP,
Anum_pg_publication_namespace_oid,
ObjectIdGetDatum(schemaid),
ObjectIdGetDatum(pubid));
ObjectIdGetDatum(pubid),
CharGetDatum(objectType));
if (!OidIsValid(psid))
{
if (missing_ok)
@ -1735,6 +2018,13 @@ AlterPublicationOwner_internal(Relation rel, HeapTuple tup, Oid newOwnerId)
NameStr(form->pubname)),
errhint("The owner of a FOR ALL TABLES publication must be a superuser.")));
if (form->puballsequences && !superuser_arg(newOwnerId))
ereport(ERROR,
(errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
errmsg("permission denied to change owner of publication \"%s\"",
NameStr(form->pubname)),
errhint("The owner of a FOR ALL SEQUENCES publication must be a superuser.")));
if (!superuser_arg(newOwnerId) && is_schema_publication(form->oid))
ereport(ERROR,
(errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),

154
src/backend/commands/sequence.c
View File

@ -336,6 +336,160 @@ ResetSequence(Oid seq_relid)
relation_close(seq_rel, NoLock);
}
/*
* Update the sequence state by modifying the existing sequence data row.
*
* This keeps the same relfilenode, so the behavior is non-transactional.
*/
static void
SetSequence_non_transactional(Oid seqrelid, int64 last_value, int64 log_cnt, bool is_called)
{
SeqTable elm;
Relation seqrel;
Buffer buf;
HeapTupleData seqdatatuple;
Form_pg_sequence_data seq;
/* open and lock sequence */
init_sequence(seqrelid, &elm, &seqrel);
/* lock page' buffer and read tuple */
seq = read_seq_tuple(seqrel, &buf, &seqdatatuple);
/* check the comment above nextval_internal()'s equivalent call. */
if (RelationNeedsWAL(seqrel))
{
GetTopTransactionId();
if (XLogLogicalInfoActive())
GetCurrentTransactionId();
}
/* ready to change the on-disk (or really, in-buffer) tuple */
START_CRIT_SECTION();
seq->last_value = last_value;
seq->is_called = is_called;
seq->log_cnt = log_cnt;
MarkBufferDirty(buf);
/* XLOG stuff */
if (RelationNeedsWAL(seqrel))
{
xl_seq_rec xlrec;
XLogRecPtr recptr;
Page page = BufferGetPage(buf);
XLogBeginInsert();
XLogRegisterBuffer(0, buf, REGBUF_WILL_INIT);
xlrec.node = seqrel->rd_node;
xlrec.created = false;
XLogRegisterData((char *) &xlrec, sizeof(xl_seq_rec));
XLogRegisterData((char *) seqdatatuple.t_data, seqdatatuple.t_len);
recptr = XLogInsert(RM_SEQ_ID, XLOG_SEQ_LOG);
PageSetLSN(page, recptr);
}
END_CRIT_SECTION();
UnlockReleaseBuffer(buf);
/* Clear local cache so that we don't think we have cached numbers */
/* Note that we do not change the currval() state */
elm->cached = elm->last;
relation_close(seqrel, NoLock);
}
/*
* Update the sequence state by creating a new relfilenode.
*
* This creates a new relfilenode, to allow transactional behavior.
*/
static void
SetSequence_transactional(Oid seq_relid, int64 last_value, int64 log_cnt, bool is_called)
{
SeqTable elm;
Relation seqrel;
Buffer buf;
HeapTupleData seqdatatuple;
Form_pg_sequence_data seq;
HeapTuple tuple;
/* open and lock sequence */
init_sequence(seq_relid, &elm, &seqrel);
/* lock page' buffer and read tuple */
seq = read_seq_tuple(seqrel, &buf, &seqdatatuple);
/* Copy the existing sequence tuple. */
tuple = heap_copytuple(&seqdatatuple);
/* Now we're done with the old page */
UnlockReleaseBuffer(buf);
/*
* Modify the copied tuple to update the sequence state (similar to what
* ResetSequence does).
*/
seq = (Form_pg_sequence_data) GETSTRUCT(tuple);
seq->last_value = last_value;
seq->is_called = is_called;
seq->log_cnt = log_cnt;
/*
* Create a new storage file for the sequence - this is needed for the
* transactional behavior.
*/
RelationSetNewRelfilenode(seqrel, seqrel->rd_rel->relpersistence);
/*
* Ensure sequence's relfrozenxid is at 0, since it won't contain any
* unfrozen XIDs. Same with relminmxid, since a sequence will never
* contain multixacts.
*/
Assert(seqrel->rd_rel->relfrozenxid == InvalidTransactionId);
Assert(seqrel->rd_rel->relminmxid == InvalidMultiXactId);
/*
* Insert the modified tuple into the new storage file. This does all the
* necessary WAL-logging etc.
*/
fill_seq_with_data(seqrel, tuple);
/* Clear local cache so that we don't think we have cached numbers */
/* Note that we do not change the currval() state */
elm->cached = elm->last;
relation_close(seqrel, NoLock);
}
/*
* Set a sequence to a specified internal state.
*
* The change is made transactionally, so that on failure of the current
* transaction, the sequence will be restored to its previous state.
* We do that by creating a whole new relfilenode for the sequence; so this
* works much like the rewriting forms of ALTER TABLE.
*
* Caller is assumed to have acquired AccessExclusiveLock on the sequence,
* which must not be released until end of transaction. Caller is also
* responsible for permissions checking.
*/
void
SetSequence(Oid seq_relid, bool transactional, int64 last_value, int64 log_cnt, bool is_called)
{
if (transactional)
SetSequence_transactional(seq_relid, last_value, log_cnt, is_called);
else
SetSequence_non_transactional(seq_relid, last_value, log_cnt, is_called);
}
/*
* Initialize a sequence's relation with the specified tuple as content
*/

101
src/backend/commands/subscriptioncmds.c
View File

@ -90,6 +90,7 @@ typedef struct SubOpts
} SubOpts;
static List *fetch_table_list(WalReceiverConn *wrconn, List *publications);
static List *fetch_sequence_list(WalReceiverConn *wrconn, List *publications);
static void check_duplicates_in_publist(List *publist, Datum *datums);
static List *merge_publications(List *oldpublist, List *newpublist, bool addpub, const char *subname);
static void ReportSlotConnectionError(List *rstates, Oid subid, char *slotname, char *err);
@ -541,9 +542,9 @@ CreateSubscription(ParseState *pstate, CreateSubscriptionStmt *stmt,
{
char *err;
WalReceiverConn *wrconn;
List *tables;
List *relations;
ListCell *lc;
char table_state;
char sync_state;
/* Try to connect to the publisher. */
wrconn = walrcv_connect(conninfo, true, stmt->subname, &err);
@ -558,14 +559,17 @@ CreateSubscription(ParseState *pstate, CreateSubscriptionStmt *stmt,
* Set sync state based on if we were asked to do data copy or
* not.
*/
table_state = opts.copy_data ? SUBREL_STATE_INIT : SUBREL_STATE_READY;
sync_state = opts.copy_data ? SUBREL_STATE_INIT : SUBREL_STATE_READY;
/*
* Get the table list from publisher and build local table status
* info.
* Get the table and sequence list from publisher and build
* local relation sync status info.
*/
tables = fetch_table_list(wrconn, publications);
foreach(lc, tables)
relations = fetch_table_list(wrconn, publications);
relations = list_concat(relations,
fetch_sequence_list(wrconn, publications));
foreach(lc, relations)
{
RangeVar *rv = (RangeVar *) lfirst(lc);
Oid relid;
@ -576,7 +580,7 @@ CreateSubscription(ParseState *pstate, CreateSubscriptionStmt *stmt,
CheckSubscriptionRelkind(get_rel_relkind(relid),
rv->schemaname, rv->relname);
AddSubscriptionRelState(subid, relid, table_state,
AddSubscriptionRelState(subid, relid, sync_state,
InvalidXLogRecPtr);
}
@ -602,12 +606,12 @@ CreateSubscription(ParseState *pstate, CreateSubscriptionStmt *stmt,
*
* Note that if tables were specified but copy_data is false
* then it is safe to enable two_phase up-front because those
* tables are already initially in READY state. When the
* subscription has no tables, we leave the twophase state as
* PENDING, to allow ALTER SUBSCRIPTION ... REFRESH
* relations are already initially in READY state. When the
* subscription has no relations, we leave the twophase state
* as PENDING, to allow ALTER SUBSCRIPTION ... REFRESH
* PUBLICATION to work.
*/
if (opts.twophase && !opts.copy_data && tables != NIL)
if (opts.twophase && !opts.copy_data && relations != NIL)
twophase_enabled = true;
walrcv_create_slot(wrconn, opts.slot_name, false, twophase_enabled,
@ -677,8 +681,10 @@ AlterSubscription_refresh(Subscription *sub, bool copy_data)
PG_TRY();
{
/* Get the table list from publisher. */
/* Get the list of relations from publisher. */
pubrel_names = fetch_table_list(wrconn, sub->publications);
pubrel_names = list_concat(pubrel_names,
fetch_sequence_list(wrconn, sub->publications));
/* Get local table list. */
subrel_states = GetSubscriptionRelations(sub->oid);
@ -1712,6 +1718,75 @@ fetch_table_list(WalReceiverConn *wrconn, List *publications)
return tablelist;
}
/*
* Get the list of sequences which belong to specified publications on the
* publisher connection.
*/
static List *
fetch_sequence_list(WalReceiverConn *wrconn, List *publications)
{
WalRcvExecResult *res;
StringInfoData cmd;
TupleTableSlot *slot;
Oid tableRow[2] = {TEXTOID, TEXTOID};
ListCell *lc;
bool first;
List *tablelist = NIL;
Assert(list_length(publications) > 0);
initStringInfo(&cmd);
appendStringInfoString(&cmd, "SELECT DISTINCT s.schemaname, s.sequencename\n"
" FROM pg_catalog.pg_publication_sequences s\n"
" WHERE s.pubname IN (");
first = true;
foreach(lc, publications)
{
char *pubname = strVal(lfirst(lc));
if (first)
first = false;
else
appendStringInfoString(&cmd, ", ");
appendStringInfoString(&cmd, quote_literal_cstr(pubname));
}
appendStringInfoChar(&cmd, ')');
res = walrcv_exec(wrconn, cmd.data, 2, tableRow);
pfree(cmd.data);
if (res->status != WALRCV_OK_TUPLES)
ereport(ERROR,
(errmsg("could not receive list of replicated sequences from the publisher: %s",
res->err)));
/* Process sequences. */
slot = MakeSingleTupleTableSlot(res->tupledesc, &TTSOpsMinimalTuple);
while (tuplestore_gettupleslot(res->tuplestore, true, false, slot))
{
char *nspname;
char *relname;
bool isnull;
RangeVar *rv;
nspname = TextDatumGetCString(slot_getattr(slot, 1, &isnull));
Assert(!isnull);
relname = TextDatumGetCString(slot_getattr(slot, 2, &isnull));
Assert(!isnull);
rv = makeRangeVar(nspname, relname, -1);
tablelist = lappend(tablelist, rv);
ExecClearTuple(slot);
}
ExecDropSingleTupleTableSlot(slot);
walrcv_clear_result(res);
return tablelist;
}
/*
* This is to report the connection failure while dropping replication slots.
* Here, we report the WARNING for all tablesync slots so that user can drop

27
src/backend/commands/tablecmds.c
View File

@ -42,6 +42,7 @@
#include "catalog/pg_inherits.h"
#include "catalog/pg_namespace.h"
#include "catalog/pg_opclass.h"
#include "catalog/pg_publication_namespace.h"
#include "catalog/pg_statistic_ext.h"
#include "catalog/pg_tablespace.h"
#include "catalog/pg_trigger.h"
@ -16381,11 +16382,14 @@ AlterTableNamespace(AlterObjectSchemaStmt *stmt, Oid *oldschema)
* Check that setting the relation to a different schema won't result in a
* publication having both a schema and the same schema's table, as this
* is not supported.
*
* XXX We do this for tables and sequences, but it's better to keep the two
* blocks separate, to make the strings easier to translate.
*/
if (stmt->objectType == OBJECT_TABLE)
{
ListCell *lc;
List *schemaPubids = GetSchemaPublications(nspOid);
List *schemaPubids = GetSchemaPublications(nspOid, PUB_OBJTYPE_TABLE);
List *relPubids = GetRelationPublications(RelationGetRelid(rel));
foreach(lc, relPubids)
@ -16403,6 +16407,27 @@ AlterTableNamespace(AlterObjectSchemaStmt *stmt, Oid *oldschema)
get_publication_name(pubid, false)));
}
}
else if (stmt->objectType == OBJECT_SEQUENCE)
{
ListCell *lc;
List *schemaPubids = GetSchemaPublications(nspOid, PUB_OBJTYPE_SEQUENCE);
List *relPubids = GetRelationPublications(RelationGetRelid(rel));
foreach(lc, relPubids)
{
Oid pubid = lfirst_oid(lc);
if (list_member_oid(schemaPubids, pubid))
ereport(ERROR,
errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
errmsg("cannot move sequence \"%s\" to schema \"%s\"",
RelationGetRelationName(rel), stmt->newschema),
errdetail("The schema \"%s\" and same schema's sequence \"%s\" cannot be part of the same publication \"%s\".",
stmt->newschema,
RelationGetRelationName(rel),
get_publication_name(pubid, false)));
}
}
/* common checks on switching namespaces */
CheckSetNamespace(oldNspOid, nspOid);

4
src/backend/executor/execReplication.c
View File

@ -636,7 +636,9 @@ void
CheckSubscriptionRelkind(char relkind, const char *nspname,
const char *relname)
{
if (relkind != RELKIND_RELATION && relkind != RELKIND_PARTITIONED_TABLE)
if (relkind != RELKIND_RELATION &&
relkind != RELKIND_PARTITIONED_TABLE &&
relkind != RELKIND_SEQUENCE)
ereport(ERROR,
(errcode(ERRCODE_WRONG_OBJECT_TYPE),
errmsg("cannot use relation \"%s.%s\" as logical replication target",

4
src/backend/nodes/copyfuncs.c
View File

@ -4862,7 +4862,7 @@ _copyCreatePublicationStmt(const CreatePublicationStmt *from)
COPY_STRING_FIELD(pubname);
COPY_NODE_FIELD(options);
COPY_NODE_FIELD(pubobjects);
COPY_SCALAR_FIELD(for_all_tables);
COPY_NODE_FIELD(for_all_objects);
return newnode;
}
@ -4875,7 +4875,7 @@ _copyAlterPublicationStmt(const AlterPublicationStmt *from)
COPY_STRING_FIELD(pubname);
COPY_NODE_FIELD(options);
COPY_NODE_FIELD(pubobjects);
COPY_SCALAR_FIELD(for_all_tables);
COPY_NODE_FIELD(for_all_objects);
COPY_SCALAR_FIELD(action);
return newnode;

4
src/backend/nodes/equalfuncs.c
View File

@ -2333,7 +2333,7 @@ _equalCreatePublicationStmt(const CreatePublicationStmt *a,
COMPARE_STRING_FIELD(pubname);
COMPARE_NODE_FIELD(options);
COMPARE_NODE_FIELD(pubobjects);
COMPARE_SCALAR_FIELD(for_all_tables);
COMPARE_NODE_FIELD(for_all_objects);
return true;
}
@ -2345,7 +2345,7 @@ _equalAlterPublicationStmt(const AlterPublicationStmt *a,
COMPARE_STRING_FIELD(pubname);
COMPARE_NODE_FIELD(options);
COMPARE_NODE_FIELD(pubobjects);
COMPARE_SCALAR_FIELD(for_all_tables);
COMPARE_NODE_FIELD(for_all_objects);
COMPARE_SCALAR_FIELD(action);
return true;

52
src/backend/parser/gram.y
View File

@ -446,7 +446,7 @@ static Node *makeRecursiveViewSelect(char *relname, List *aliases, Node *query);
transform_element_list transform_type_list
TriggerTransitions TriggerReferencing
vacuum_relation_list opt_vacuum_relation_list
drop_option_list pub_obj_list
drop_option_list pub_obj_list pub_obj_type_list
%type <node> opt_routine_body
%type <groupclause> group_clause
@ -575,6 +575,7 @@ static Node *makeRecursiveViewSelect(char *relname, List *aliases, Node *query);
%type <node> var_value zone_value
%type <rolespec> auth_ident RoleSpec opt_granted_by
%type <publicationobjectspec> PublicationObjSpec
%type <node> pub_obj_type
%type <keyword> unreserved_keyword type_func_name_keyword
%type <keyword> col_name_keyword reserved_keyword
@ -9701,13 +9702,10 @@ AlterOwnerStmt: ALTER AGGREGATE aggregate_with_argtypes OWNER TO RoleSpec
*
* CREATE PUBLICATION FOR ALL TABLES [WITH options]
*
* CREATE PUBLICATION FOR ALL SEQUENCES [WITH options]
*
* CREATE PUBLICATION FOR pub_obj [, ...] [WITH options]
*
* pub_obj is one of:
*
* TABLE table [, ...]
* ALL TABLES IN SCHEMA schema [, ...]
*
*****************************************************************************/
CreatePublicationStmt:
@ -9718,12 +9716,12 @@ CreatePublicationStmt:
n->options = $4;
$$ = (Node *)n;
}
| CREATE PUBLICATION name FOR ALL TABLES opt_definition
| CREATE PUBLICATION name FOR ALL pub_obj_type_list opt_definition
{
CreatePublicationStmt *n = makeNode(CreatePublicationStmt);
n->pubname = $3;
n->options = $7;
n->for_all_tables = true;
n->for_all_objects = $6;
$$ = (Node *)n;
}
| CREATE PUBLICATION name FOR pub_obj_list opt_definition
@ -9772,6 +9770,26 @@ PublicationObjSpec:
$$->pubobjtype = PUBLICATIONOBJ_TABLES_IN_CUR_SCHEMA;
$$->location = @5;
}
| SEQUENCE relation_expr
{
$$ = makeNode(PublicationObjSpec);
$$->pubobjtype = PUBLICATIONOBJ_SEQUENCE;
$$->pubtable = makeNode(PublicationTable);
$$->pubtable->relation = $2;
}
| ALL SEQUENCES IN_P SCHEMA ColId
{
$$ = makeNode(PublicationObjSpec);
$$->pubobjtype = PUBLICATIONOBJ_SEQUENCES_IN_SCHEMA;
$$->name = $5;
$$->location = @5;
}
| ALL SEQUENCES IN_P SCHEMA CURRENT_SCHEMA
{
$$ = makeNode(PublicationObjSpec);
$$->pubobjtype = PUBLICATIONOBJ_SEQUENCES_IN_CUR_SCHEMA;
$$->location = @5;
}
| ColId OptWhereClause
{
$$ = makeNode(PublicationObjSpec);
@ -9826,6 +9844,19 @@ pub_obj_list: PublicationObjSpec
{ $$ = lappend($1, $3); }
;
pub_obj_type: TABLES
{ $$ = (Node *) makeString("tables"); }
| SEQUENCES
{ $$ = (Node *) makeString("sequences"); }
;
pub_obj_type_list: pub_obj_type
{ $$ = list_make1($1); }
| pub_obj_type_list ',' pub_obj_type
{ $$ = lappend($1, $3); }
;
/*****************************************************************************
*
* ALTER PUBLICATION name SET ( options )
@ -9836,11 +9867,6 @@ pub_obj_list: PublicationObjSpec
*
* ALTER PUBLICATION name SET pub_obj [, ...]
*
* pub_obj is one of:
*
* TABLE table_name [, ...]
* ALL TABLES IN SCHEMA schema_name [, ...]
*
*****************************************************************************/
AlterPublicationStmt:

52
src/backend/replication/logical/proto.c
View File

@ -648,6 +648,56 @@ logicalrep_write_message(StringInfo out, TransactionId xid, XLogRecPtr lsn,
pq_sendbytes(out, message, sz);
}
/*
* Write SEQUENCE to stream
*/
void
logicalrep_write_sequence(StringInfo out, Relation rel, TransactionId xid,
XLogRecPtr lsn, bool transactional,
int64 last_value, int64 log_cnt, bool is_called)
{
uint8 flags = 0;
char *relname;
pq_sendbyte(out, LOGICAL_REP_MSG_SEQUENCE);
/* transaction ID (if not valid, we're not streaming) */
if (TransactionIdIsValid(xid))
pq_sendint32(out, xid);
pq_sendint8(out, flags);
pq_sendint64(out, lsn);
logicalrep_write_namespace(out, RelationGetNamespace(rel));
relname = RelationGetRelationName(rel);
pq_sendstring(out, relname);
pq_sendint8(out, transactional);
pq_sendint64(out, last_value);
pq_sendint64(out, log_cnt);
pq_sendint8(out, is_called);
}
/*
* Read SEQUENCE from the stream.
*/
void
logicalrep_read_sequence(StringInfo in, LogicalRepSequence *seqdata)
{
/* XXX skipping flags and lsn */
pq_getmsgint(in, 1);
pq_getmsgint64(in);
/* Read relation name from stream */
seqdata->nspname = pstrdup(logicalrep_read_namespace(in));
seqdata->seqname = pstrdup(pq_getmsgstring(in));
seqdata->transactional = pq_getmsgint(in, 1);
seqdata->last_value = pq_getmsgint64(in);
seqdata->log_cnt = pq_getmsgint64(in);
seqdata->is_called = pq_getmsgint(in, 1);
}
/*
* Write relation description to the output stream.
*/
@ -1203,6 +1253,8 @@ logicalrep_message_type(LogicalRepMsgType action)
return "STREAM ABORT";
case LOGICAL_REP_MSG_STREAM_PREPARE:
return "STREAM PREPARE";
case LOGICAL_REP_MSG_SEQUENCE:
return "SEQUENCE";
}
elog(ERROR, "invalid logical replication message type \"%c\"", action);

109
src/backend/replication/logical/tablesync.c
View File

@ -100,6 +100,7 @@
#include "catalog/pg_subscription_rel.h"
#include "catalog/pg_type.h"
#include "commands/copy.h"
#include "commands/sequence.h"
#include "miscadmin.h"
#include "parser/parse_relation.h"
#include "pgstat.h"
@ -999,6 +1000,95 @@ copy_table(Relation rel)
logicalrep_rel_close(relmapentry, NoLock);
}
/*
* Fetch sequence data (current state) from the remote node.
*/
static void
fetch_sequence_data(char *nspname, char *relname,
int64 *last_value, int64 *log_cnt, bool *is_called)
{
WalRcvExecResult *res;
StringInfoData cmd;
TupleTableSlot *slot;
Oid tableRow[3] = {INT8OID, INT8OID, BOOLOID};
initStringInfo(&cmd);
appendStringInfo(&cmd, "SELECT last_value, log_cnt, is_called\n"
" FROM %s", quote_qualified_identifier(nspname, relname));
res = walrcv_exec(LogRepWorkerWalRcvConn, cmd.data, 3, tableRow);
pfree(cmd.data);
if (res->status != WALRCV_OK_TUPLES)
ereport(ERROR,
(errmsg("could not receive list of replicated tables from the publisher: %s",
res->err)));
/* Process the sequence. */
slot = MakeSingleTupleTableSlot(res->tupledesc, &TTSOpsMinimalTuple);
while (tuplestore_gettupleslot(res->tuplestore, true, false, slot))
{
bool isnull;
*last_value = DatumGetInt64(slot_getattr(slot, 1, &isnull));
Assert(!isnull);
*log_cnt = DatumGetInt64(slot_getattr(slot, 2, &isnull));
Assert(!isnull);
*is_called = DatumGetBool(slot_getattr(slot, 3, &isnull));
Assert(!isnull);
ExecClearTuple(slot);
}
ExecDropSingleTupleTableSlot(slot);
walrcv_clear_result(res);
}
/*
* Copy existing data of a sequence from publisher.
*
* Caller is responsible for locking the local relation.
*/
static void
copy_sequence(Relation rel)
{
LogicalRepRelMapEntry *relmapentry;
LogicalRepRelation lrel;
List *qual = NIL;
StringInfoData cmd;
int64 last_value = 0,
log_cnt = 0;
bool is_called = 0;
/* Get the publisher relation info. */
fetch_remote_table_info(get_namespace_name(RelationGetNamespace(rel)),
RelationGetRelationName(rel), &lrel, &qual);
/* sequences don't have row filters */
Assert(!qual);
/* Put the relation into relmap. */
logicalrep_relmap_update(&lrel);
/* Map the publisher relation to local one. */
relmapentry = logicalrep_rel_open(lrel.remoteid, NoLock);
Assert(rel == relmapentry->localrel);
/* Start copy on the publisher. */
initStringInfo(&cmd);
Assert(lrel.relkind == RELKIND_SEQUENCE);
fetch_sequence_data(lrel.nspname, lrel.relname, &last_value, &log_cnt, &is_called);
/* tablesync sets the sequences in non-transactional way */
SetSequence(RelationGetRelid(rel), false, last_value, log_cnt, is_called);
logicalrep_rel_close(relmapentry, NoLock);
}
/*
* Determine the tablesync slot name.
*
@ -1260,10 +1350,21 @@ LogicalRepSyncTableStart(XLogRecPtr *origin_startpos)
originname)));
}
/* Now do the initial data copy */
PushActiveSnapshot(GetTransactionSnapshot());
copy_table(rel);
PopActiveSnapshot();
/* Do the right action depending on the relation kind. */
if (get_rel_relkind(RelationGetRelid(rel)) == RELKIND_SEQUENCE)
{
/* Now do the initial sequence copy */
PushActiveSnapshot(GetTransactionSnapshot());
copy_sequence(rel);
PopActiveSnapshot();
}
else
{
/* Now do the initial data copy */
PushActiveSnapshot(GetTransactionSnapshot());
copy_table(rel);
PopActiveSnapshot();
}
res = walrcv_exec(LogRepWorkerWalRcvConn, "COMMIT", 0, NULL);
if (res->status != WALRCV_OK_COMMAND)

56
src/backend/replication/logical/worker.c
View File

@ -143,6 +143,7 @@
#include "catalog/pg_subscription.h"
#include "catalog/pg_subscription_rel.h"
#include "catalog/pg_tablespace.h"
#include "commands/sequence.h"
#include "commands/tablecmds.h"
#include "commands/tablespace.h"
#include "commands/trigger.h"
@ -1143,6 +1144,57 @@ apply_handle_origin(StringInfo s)
errmsg_internal("ORIGIN message sent out of order")));
}
/*
* Handle SEQUENCE message.
*/
static void
apply_handle_sequence(StringInfo s)
{
LogicalRepSequence seq;
Oid relid;
if (handle_streamed_transaction(LOGICAL_REP_MSG_SEQUENCE, s))
return;
logicalrep_read_sequence(s, &seq);
/*
* Non-transactional sequence updates should not be part of a remote
* transaction. There should not be any running transaction.
*/
Assert((!seq.transactional) || in_remote_transaction);
Assert(!(!seq.transactional && in_remote_transaction));
Assert(!(!seq.transactional && IsTransactionState()));
/*
* Make sure we're in a transaction (needed by SetSequence). For
* non-transactional updates we're guaranteed to start a new one,
* and we'll commit it at the end.
*/
if (!IsTransactionState())
{
StartTransactionCommand();
maybe_reread_subscription();
}
relid = RangeVarGetRelid(makeRangeVar(seq.nspname,
seq.seqname, -1),
RowExclusiveLock, false);
/* lock the sequence in AccessExclusiveLock, as expected by SetSequence */
LockRelationOid(relid, AccessExclusiveLock);
/* apply the sequence change */
SetSequence(relid, seq.transactional, seq.last_value, seq.log_cnt, seq.is_called);
/*
* Commit the per-stream transaction (we only do this when not in
* remote transaction, i.e. for non-transactional sequence updates.
*/
if (!in_remote_transaction)
CommitTransactionCommand();
}
/*
* Handle STREAM START message.
*/
@ -2511,6 +2563,10 @@ apply_dispatch(StringInfo s)
*/
break;
case LOGICAL_REP_MSG_SEQUENCE:
apply_handle_sequence(s);
return;
case LOGICAL_REP_MSG_STREAM_START:
apply_handle_stream_start(s);
break;

79
src/backend/replication/pgoutput/pgoutput.c
View File

@ -15,6 +15,7 @@
#include "access/tupconvert.h"
#include "catalog/partition.h"
#include "catalog/pg_publication.h"
#include "catalog/pg_publication_namespace.h"
#include "catalog/pg_publication_rel.h"
#include "commands/defrem.h"
#include "executor/executor.h"
@ -53,6 +54,10 @@ static void pgoutput_message(LogicalDecodingContext *ctx,
ReorderBufferTXN *txn, XLogRecPtr message_lsn,
bool transactional, const char *prefix,
Size sz, const char *message);
static void pgoutput_sequence(LogicalDecodingContext *ctx,
ReorderBufferTXN *txn, XLogRecPtr sequence_lsn,
Relation relation, bool transactional,
int64 last_value, int64 log_cnt, bool is_called);
static bool pgoutput_origin_filter(LogicalDecodingContext *ctx,
RepOriginId origin_id);
static void pgoutput_begin_prepare_txn(LogicalDecodingContext *ctx,
@ -208,6 +213,7 @@ _PG_output_plugin_init(OutputPluginCallbacks *cb)
cb->change_cb = pgoutput_change;
cb->truncate_cb = pgoutput_truncate;
cb->message_cb = pgoutput_message;
cb->sequence_cb = pgoutput_sequence;
cb->commit_cb = pgoutput_commit_txn;
cb->begin_prepare_cb = pgoutput_begin_prepare_txn;
@ -224,6 +230,7 @@ _PG_output_plugin_init(OutputPluginCallbacks *cb)
cb->stream_commit_cb = pgoutput_stream_commit;
cb->stream_change_cb = pgoutput_change;
cb->stream_message_cb = pgoutput_message;
cb->stream_sequence_cb = pgoutput_sequence;
cb->stream_truncate_cb = pgoutput_truncate;
/* transaction streaming - two-phase commit */
cb->stream_prepare_cb = pgoutput_stream_prepare_txn;
@ -237,6 +244,7 @@ parse_output_parameters(List *options, PGOutputData *data)
bool publication_names_given = false;
bool binary_option_given = false;
bool messages_option_given = false;
bool sequences_option_given = false;
bool streaming_given = false;
bool two_phase_option_given = false;
@ -244,6 +252,7 @@ parse_output_parameters(List *options, PGOutputData *data)
data->streaming = false;
data->messages = false;
data->two_phase = false;
data->sequences = true;
foreach(lc, options)
{
@ -312,6 +321,16 @@ parse_output_parameters(List *options, PGOutputData *data)
data->messages = defGetBoolean(defel);
}
else if (strcmp(defel->defname, "sequences") == 0)
{
if (sequences_option_given)
ereport(ERROR,
(errcode(ERRCODE_SYNTAX_ERROR),
errmsg("conflicting or redundant options")));
sequences_option_given = true;
data->sequences = defGetBoolean(defel);
}
else if (strcmp(defel->defname, "streaming") == 0)
{
if (streaming_given)
@ -1440,6 +1459,51 @@ pgoutput_message(LogicalDecodingContext *ctx, ReorderBufferTXN *txn,
OutputPluginWrite(ctx, true);
}
static void
pgoutput_sequence(LogicalDecodingContext *ctx,
ReorderBufferTXN *txn, XLogRecPtr sequence_lsn,
Relation relation, bool transactional,
int64 last_value, int64 log_cnt, bool is_called)
{
PGOutputData *data = (PGOutputData *) ctx->output_plugin_private;
TransactionId xid = InvalidTransactionId;
RelationSyncEntry *relentry;
if (!data->sequences)
return;
if (!is_publishable_relation(relation))
return;
/*
* Remember the xid for the message in streaming mode. See
* pgoutput_change.
*/
if (in_streaming)
xid = txn->xid;
relentry = get_rel_sync_entry(data, relation);
/*
* First check the sequence filter.
*
* We handle just REORDER_BUFFER_CHANGE_SEQUENCE here.
*/
if (!relentry->pubactions.pubsequence)
return;
OutputPluginPrepareWrite(ctx, true);
logicalrep_write_sequence(ctx->out,
relation,
xid,
sequence_lsn,
transactional,
last_value,
log_cnt,
is_called);
OutputPluginWrite(ctx, true);
}
/*
* Currently we always forward.
*/
@ -1725,7 +1789,8 @@ get_rel_sync_entry(PGOutputData *data, Relation relation)
entry->schema_sent = false;
entry->streamed_txns = NIL;
entry->pubactions.pubinsert = entry->pubactions.pubupdate =
entry->pubactions.pubdelete = entry->pubactions.pubtruncate = false;
entry->pubactions.pubdelete = entry->pubactions.pubtruncate =
entry->pubactions.pubsequence = false;
entry->new_slot = NULL;
entry->old_slot = NULL;
memset(entry->exprstate, 0, sizeof(entry->exprstate));
@ -1739,13 +1804,13 @@ get_rel_sync_entry(PGOutputData *data, Relation relation)
{
Oid schemaId = get_rel_namespace(relid);
List *pubids = GetRelationPublications(relid);
char objectType = pub_get_object_type_for_relkind(get_rel_relkind(relid));
/*
* We don't acquire a lock on the namespace system table as we build
* the cache entry using a historic snapshot and all the later changes
* are absorbed while decoding WAL.
*/
List *schemaPubids = GetSchemaPublications(schemaId);
List *schemaPubids = GetSchemaPublications(schemaId, objectType);
ListCell *lc;
Oid publish_as_relid = relid;
int publish_ancestor_level = 0;
@ -1780,6 +1845,7 @@ get_rel_sync_entry(PGOutputData *data, Relation relation)
entry->pubactions.pubupdate = false;
entry->pubactions.pubdelete = false;
entry->pubactions.pubtruncate = false;
entry->pubactions.pubsequence = false;
/*
* Tuple slots cleanups. (Will be rebuilt later if needed).
@ -1826,9 +1892,11 @@ get_rel_sync_entry(PGOutputData *data, Relation relation)
/*
* If this is a FOR ALL TABLES publication, pick the partition root
* and set the ancestor level accordingly.
* and set the ancestor level accordingly. If this is a FOR ALL
* SEQUENCES publication, we publish it too but we don't need to
* pick the partition root etc.
*/
if (pub->alltables)
if (pub->alltables || pub->allsequences)
{
publish = true;
if (pub->pubviaroot && am_partition)
@ -1889,6 +1957,7 @@ get_rel_sync_entry(PGOutputData *data, Relation relation)
entry->pubactions.pubupdate |= pub->pubactions.pubupdate;
entry->pubactions.pubdelete |= pub->pubactions.pubdelete;
entry->pubactions.pubtruncate |= pub->pubactions.pubtruncate;
entry->pubactions.pubsequence |= pub->pubactions.pubsequence;
/*
* We want to publish the changes as the top-most ancestor

28
src/backend/utils/cache/relcache.c vendored
View File

@ -56,6 +56,7 @@
#include "catalog/pg_opclass.h"
#include "catalog/pg_proc.h"
#include "catalog/pg_publication.h"
#include "catalog/pg_publication_namespace.h"
#include "catalog/pg_rewrite.h"
#include "catalog/pg_shseclabel.h"
#include "catalog/pg_statistic_ext.h"
@ -5562,6 +5563,8 @@ RelationBuildPublicationDesc(Relation relation, PublicationDesc *pubdesc)
Oid schemaid;
List *ancestors = NIL;
Oid relid = RelationGetRelid(relation);
char relkind = relation->rd_rel->relkind;
char objType;
/*
* If not publishable, it publishes no actions. (pgoutput_change() will
@ -5588,8 +5591,15 @@ RelationBuildPublicationDesc(Relation relation, PublicationDesc *pubdesc)
/* Fetch the publication membership info. */
puboids = GetRelationPublications(relid);
schemaid = RelationGetNamespace(relation);
puboids = list_concat_unique_oid(puboids, GetSchemaPublications(schemaid));
objType = pub_get_object_type_for_relkind(relkind);
puboids = list_concat_unique_oid(puboids,
GetSchemaPublications(schemaid, objType));
/*
* If this is a partion (and thus a table), lookup all ancestors and track
* all publications them too.
*/
if (relation->rd_rel->relispartition)
{
/* Add publications that the ancestors are in too. */
@ -5601,12 +5611,23 @@ RelationBuildPublicationDesc(Relation relation, PublicationDesc *pubdesc)
puboids = list_concat_unique_oid(puboids,
GetRelationPublications(ancestor));
/* include all publications publishing schema of all ancestors */
schemaid = get_rel_namespace(ancestor);
puboids = list_concat_unique_oid(puboids,
GetSchemaPublications(schemaid));
GetSchemaPublications(schemaid,
PUB_OBJTYPE_TABLE));
}
}
puboids = list_concat_unique_oid(puboids, GetAllTablesPublications());
/*
* Consider also FOR ALL TABLES and FOR ALL SEQUENCES publications,
* depending on the relkind of the relation.
*/
if (relation->rd_rel->relkind == RELKIND_SEQUENCE)
puboids = list_concat_unique_oid(puboids, GetAllSequencesPublications());
else
puboids = list_concat_unique_oid(puboids, GetAllTablesPublications());
foreach(lc, puboids)
{
@ -5625,6 +5646,7 @@ RelationBuildPublicationDesc(Relation relation, PublicationDesc *pubdesc)
pubdesc->pubactions.pubupdate |= pubform->pubupdate;
pubdesc->pubactions.pubdelete |= pubform->pubdelete;
pubdesc->pubactions.pubtruncate |= pubform->pubtruncate;
pubdesc->pubactions.pubsequence |= pubform->pubsequence;
/*
* Check if all columns referenced in the filter expression are part of

6
src/backend/utils/cache/syscache.c vendored
View File

@ -630,12 +630,12 @@ static const struct cachedesc cacheinfo[] = {
64
},
{PublicationNamespaceRelationId, /* PUBLICATIONNAMESPACEMAP */
PublicationNamespacePnnspidPnpubidIndexId,
2,
PublicationNamespacePnnspidPnpubidPntypeIndexId,
3,
{
Anum_pg_publication_namespace_pnnspid,
Anum_pg_publication_namespace_pnpubid,
0,
Anum_pg_publication_namespace_pntype,
0
},
64

65
src/bin/pg_dump/pg_dump.c
View File

@ -3814,10 +3814,12 @@ getPublications(Archive *fout, int *numPublications)
int i_pubname;
int i_pubowner;
int i_puballtables;
int i_puballsequences;
int i_pubinsert;
int i_pubupdate;
int i_pubdelete;
int i_pubtruncate;
int i_pubsequence;
int i_pubviaroot;
int i,
ntups;
@ -3833,23 +3835,29 @@ getPublications(Archive *fout, int *numPublications)
resetPQExpBuffer(query);
/* Get the publications. */
if (fout->remoteVersion >= 130000)
if (fout->remoteVersion >= 150000)
appendPQExpBuffer(query,
"SELECT p.tableoid, p.oid, p.pubname, "
"p.pubowner, "
"p.puballtables, p.pubinsert, p.pubupdate, p.pubdelete, p.pubtruncate, p.pubviaroot "
"p.puballtables, p.puballsequences, p.pubinsert, p.pubupdate, p.pubdelete, p.pubtruncate, p.pubsequence, p.pubviaroot "
"FROM pg_publication p");
else if (fout->remoteVersion >= 130000)
appendPQExpBuffer(query,
"SELECT p.tableoid, p.oid, p.pubname, "
"p.pubowner, "
"p.puballtables, false AS puballsequences, p.pubinsert, p.pubupdate, p.pubdelete, p.pubtruncate, false AS pubsequence, p.pubviaroot "
"FROM pg_publication p");
else if (fout->remoteVersion >= 110000)
appendPQExpBuffer(query,
"SELECT p.tableoid, p.oid, p.pubname, "
"p.pubowner, "
"p.puballtables, p.pubinsert, p.pubupdate, p.pubdelete, p.pubtruncate, false AS pubviaroot "
"p.puballtables, false AS puballsequences, p.pubinsert, p.pubupdate, p.pubdelete, p.pubtruncate, false AS pubsequence, false AS pubviaroot "
"FROM pg_publication p");
else
appendPQExpBuffer(query,
"SELECT p.tableoid, p.oid, p.pubname, "
"p.pubowner, "
"p.puballtables, p.pubinsert, p.pubupdate, p.pubdelete, false AS pubtruncate, false AS pubviaroot "
"p.puballtables, false AS puballsequences, p.pubinsert, p.pubupdate, p.pubdelete, false AS pubtruncate, false AS pubsequence, false AS pubviaroot "
"FROM pg_publication p");
res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK);
@ -3861,10 +3869,12 @@ getPublications(Archive *fout, int *numPublications)
i_pubname = PQfnumber(res, "pubname");
i_pubowner = PQfnumber(res, "pubowner");
i_puballtables = PQfnumber(res, "puballtables");
i_puballsequences = PQfnumber(res, "puballsequences");
i_pubinsert = PQfnumber(res, "pubinsert");
i_pubupdate = PQfnumber(res, "pubupdate");
i_pubdelete = PQfnumber(res, "pubdelete");
i_pubtruncate = PQfnumber(res, "pubtruncate");
i_pubsequence = PQfnumber(res, "pubsequence");
i_pubviaroot = PQfnumber(res, "pubviaroot");
pubinfo = pg_malloc(ntups * sizeof(PublicationInfo));
@ -3880,6 +3890,8 @@ getPublications(Archive *fout, int *numPublications)
pubinfo[i].rolname = getRoleName(PQgetvalue(res, i, i_pubowner));
pubinfo[i].puballtables =
(strcmp(PQgetvalue(res, i, i_puballtables), "t") == 0);
pubinfo[i].puballsequences =
(strcmp(PQgetvalue(res, i, i_puballsequences), "t") == 0);
pubinfo[i].pubinsert =
(strcmp(PQgetvalue(res, i, i_pubinsert), "t") == 0);
pubinfo[i].pubupdate =
@ -3888,6 +3900,8 @@ getPublications(Archive *fout, int *numPublications)
(strcmp(PQgetvalue(res, i, i_pubdelete), "t") == 0);
pubinfo[i].pubtruncate =
(strcmp(PQgetvalue(res, i, i_pubtruncate), "t") == 0);
pubinfo[i].pubsequence =
(strcmp(PQgetvalue(res, i, i_pubsequence), "t") == 0);
pubinfo[i].pubviaroot =
(strcmp(PQgetvalue(res, i, i_pubviaroot), "t") == 0);
@ -3933,6 +3947,9 @@ dumpPublication(Archive *fout, const PublicationInfo *pubinfo)
if (pubinfo->puballtables)
appendPQExpBufferStr(query, " FOR ALL TABLES");
if (pubinfo->puballsequences)
appendPQExpBufferStr(query, " FOR ALL SEQUENCES");
appendPQExpBufferStr(query, " WITH (publish = '");
if (pubinfo->pubinsert)
{
@ -3967,6 +3984,15 @@ dumpPublication(Archive *fout, const PublicationInfo *pubinfo)
first = false;
}
if (pubinfo->pubsequence)
{
if (!first)
appendPQExpBufferStr(query, ", ");
appendPQExpBufferStr(query, "sequence");
first = false;
}
appendPQExpBufferStr(query, "'");
if (pubinfo->pubviaroot)
@ -4013,6 +4039,7 @@ getPublicationNamespaces(Archive *fout)
int i_oid;
int i_pnpubid;
int i_pnnspid;
int i_pntype;
int i,
j,
ntups;
@ -4024,7 +4051,7 @@ getPublicationNamespaces(Archive *fout)
/* Collect all publication membership info. */
appendPQExpBufferStr(query,
"SELECT tableoid, oid, pnpubid, pnnspid "
"SELECT tableoid, oid, pnpubid, pnnspid, pntype "
"FROM pg_catalog.pg_publication_namespace");
res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK);
@ -4034,6 +4061,7 @@ getPublicationNamespaces(Archive *fout)
i_oid = PQfnumber(res, "oid");
i_pnpubid = PQfnumber(res, "pnpubid");
i_pnnspid = PQfnumber(res, "pnnspid");
i_pntype = PQfnumber(res, "pntype");
/* this allocation may be more than we need */
pubsinfo = pg_malloc(ntups * sizeof(PublicationSchemaInfo));
@ -4043,6 +4071,7 @@ getPublicationNamespaces(Archive *fout)
{
Oid pnpubid = atooid(PQgetvalue(res, i, i_pnpubid));
Oid pnnspid = atooid(PQgetvalue(res, i, i_pnnspid));
char pntype = PQgetvalue(res, i, i_pntype)[0];
PublicationInfo *pubinfo;
NamespaceInfo *nspinfo;
@ -4074,6 +4103,7 @@ getPublicationNamespaces(Archive *fout)
pubsinfo[j].dobj.name = nspinfo->dobj.name;
pubsinfo[j].publication = pubinfo;
pubsinfo[j].pubschema = nspinfo;
pubsinfo[j].pubtype = pntype;
/* Decide whether we want to dump it */
selectDumpablePublicationObject(&(pubsinfo[j].dobj), fout);
@ -4207,7 +4237,11 @@ dumpPublicationNamespace(Archive *fout, const PublicationSchemaInfo *pubsinfo)
query = createPQExpBuffer();
appendPQExpBuffer(query, "ALTER PUBLICATION %s ", fmtId(pubinfo->dobj.name));
appendPQExpBuffer(query, "ADD ALL TABLES IN SCHEMA %s;\n", fmtId(schemainfo->dobj.name));
if (pubsinfo->pubtype == 't')
appendPQExpBuffer(query, "ADD ALL TABLES IN SCHEMA %s;\n", fmtId(schemainfo->dobj.name));
else
appendPQExpBuffer(query, "ADD ALL SEQUENCES IN SCHEMA %s;\n", fmtId(schemainfo->dobj.name));
/*
* There is no point in creating drop query as the drop is done by schema
@ -4240,6 +4274,7 @@ dumpPublicationTable(Archive *fout, const PublicationRelInfo *pubrinfo)
TableInfo *tbinfo = pubrinfo->pubtable;
PQExpBuffer query;
char *tag;
char *description;
/* Do nothing in data-only dump */
if (dopt->dataOnly)
@ -4249,10 +4284,22 @@ dumpPublicationTable(Archive *fout, const PublicationRelInfo *pubrinfo)
query = createPQExpBuffer();
appendPQExpBuffer(query, "ALTER PUBLICATION %s ADD TABLE ONLY",
fmtId(pubinfo->dobj.name));
if (tbinfo->relkind == RELKIND_SEQUENCE)
{
appendPQExpBuffer(query, "ALTER PUBLICATION %s ADD SEQUENCE",
fmtId(pubinfo->dobj.name));
description = "PUBLICATION SEQUENCE";
}
else
{
appendPQExpBuffer(query, "ALTER PUBLICATION %s ADD TABLE ONLY",
fmtId(pubinfo->dobj.name));
description = "PUBLICATION TABLE";
}
appendPQExpBuffer(query, " %s",
fmtQualifiedDumpable(tbinfo));
if (pubrinfo->pubrelqual)
{
/*
@ -4275,7 +4322,7 @@ dumpPublicationTable(Archive *fout, const PublicationRelInfo *pubrinfo)
ARCHIVE_OPTS(.tag = tag,
.namespace = tbinfo->dobj.namespace->dobj.name,
.owner = pubinfo->rolname,
.description = "PUBLICATION TABLE",
.description = description,
.section = SECTION_POST_DATA,
.createStmt = query->data));

3
src/bin/pg_dump/pg_dump.h
View File

@ -615,10 +615,12 @@ typedef struct _PublicationInfo
DumpableObject dobj;
const char *rolname;
bool puballtables;
bool puballsequences;
bool pubinsert;
bool pubupdate;
bool pubdelete;
bool pubtruncate;
bool pubsequence;
bool pubviaroot;
} PublicationInfo;
@ -643,6 +645,7 @@ typedef struct _PublicationSchemaInfo
DumpableObject dobj;
PublicationInfo *publication;
NamespaceInfo *pubschema;
char pubtype;
} PublicationSchemaInfo;
/*

40
src/bin/pg_dump/t/002_pg_dump.pl
View File

@ -2358,7 +2358,7 @@ my %tests = (
create_order => 50,
create_sql => 'CREATE PUBLICATION pub1;',
regexp => qr/^
\QCREATE PUBLICATION pub1 WITH (publish = 'insert, update, delete, truncate');\E
\QCREATE PUBLICATION pub1 WITH (publish = 'insert, update, delete, truncate, sequence');\E
/xm,
like => { %full_runs, section_post_data => 1, },
},
@ -2378,16 +2378,27 @@ my %tests = (
create_order => 50,
create_sql => 'CREATE PUBLICATION pub3;',
regexp => qr/^
\QCREATE PUBLICATION pub3 WITH (publish = 'insert, update, delete, truncate');\E
\QCREATE PUBLICATION pub3 WITH (publish = 'insert, update, delete, truncate, sequence');\E
/xm,
like => { %full_runs, section_post_data => 1, },
},
'CREATE PUBLICATION pub4' => {
create_order => 50,
create_sql => 'CREATE PUBLICATION pub4;',
create_sql => 'CREATE PUBLICATION pub4
FOR ALL SEQUENCES
WITH (publish = \'\');',
regexp => qr/^
\QCREATE PUBLICATION pub4 WITH (publish = 'insert, update, delete, truncate');\E
\QCREATE PUBLICATION pub4 FOR ALL SEQUENCES WITH (publish = '');\E
/xm,
like => { %full_runs, section_post_data => 1, },
},
'CREATE PUBLICATION pub5' => {
create_order => 50,
create_sql => 'CREATE PUBLICATION pub5;',
regexp => qr/^
\QCREATE PUBLICATION pub5 WITH (publish = 'insert, update, delete, truncate, sequence');\E
/xm,
like => { %full_runs, section_post_data => 1, },
},
@ -2474,6 +2485,27 @@ my %tests = (
unlike => { exclude_dump_test_schema => 1, },
},
'ALTER PUBLICATION pub3 ADD ALL SEQUENCES IN SCHEMA dump_test' => {
create_order => 51,
create_sql =>
'ALTER PUBLICATION pub3 ADD ALL SEQUENCES IN SCHEMA dump_test;',
regexp => qr/^
\QALTER PUBLICATION pub3 ADD ALL SEQUENCES IN SCHEMA dump_test;\E
/xm,
like => { %full_runs, section_post_data => 1, },
unlike => { exclude_dump_test_schema => 1, },
},
'ALTER PUBLICATION pub3 ADD ALL SEQUENCES IN SCHEMA public' => {
create_order => 52,
create_sql =>
'ALTER PUBLICATION pub3 ADD ALL SEQUENCES IN SCHEMA public;',
regexp => qr/^
\QALTER PUBLICATION pub3 ADD ALL SEQUENCES IN SCHEMA public;\E
/xm,
like => { %full_runs, section_post_data => 1, },
},
'CREATE SCHEMA public' => {
regexp => qr/^CREATE SCHEMA public;/m,

287
src/bin/psql/describe.c
View File

@ -1633,28 +1633,19 @@ describeOneTableDetails(const char *schemaname,
if (tableinfo.relkind == RELKIND_SEQUENCE)
{
PGresult *result = NULL;
printQueryOpt myopt = pset.popt;
char *footers[2] = {NULL, NULL};
if (pset.sversion >= 100000)
{
printfPQExpBuffer(&buf,
"SELECT pg_catalog.format_type(seqtypid, NULL) AS \"%s\",\n"
" seqstart AS \"%s\",\n"
" seqmin AS \"%s\",\n"
" seqmax AS \"%s\",\n"
" seqincrement AS \"%s\",\n"
" CASE WHEN seqcycle THEN '%s' ELSE '%s' END AS \"%s\",\n"
" seqcache AS \"%s\"\n",
gettext_noop("Type"),
gettext_noop("Start"),
gettext_noop("Minimum"),
gettext_noop("Maximum"),
gettext_noop("Increment"),
"SELECT pg_catalog.format_type(seqtypid, NULL),\n"
" seqstart,\n"
" seqmin,\n"
" seqmax,\n"
" seqincrement,\n"
" CASE WHEN seqcycle THEN '%s' ELSE '%s' END,\n"
" seqcache\n",
gettext_noop("yes"),
gettext_noop("no"),
gettext_noop("Cycles?"),
gettext_noop("Cache"));
gettext_noop("no"));
appendPQExpBuffer(&buf,
"FROM pg_catalog.pg_sequence\n"
"WHERE seqrelid = '%s';",
@ -1663,22 +1654,15 @@ describeOneTableDetails(const char *schemaname,
else
{
printfPQExpBuffer(&buf,
"SELECT 'bigint' AS \"%s\",\n"
" start_value AS \"%s\",\n"
" min_value AS \"%s\",\n"
" max_value AS \"%s\",\n"
" increment_by AS \"%s\",\n"
" CASE WHEN is_cycled THEN '%s' ELSE '%s' END AS \"%s\",\n"
" cache_value AS \"%s\"\n",
gettext_noop("Type"),
gettext_noop("Start"),
gettext_noop("Minimum"),
gettext_noop("Maximum"),
gettext_noop("Increment"),
"SELECT 'bigint',\n"
" start_value,\n"
" min_value,\n"
" max_value,\n"
" increment_by,\n"
" CASE WHEN is_cycled THEN '%s' ELSE '%s' END,\n"
" cache_value\n",
gettext_noop("yes"),
gettext_noop("no"),
gettext_noop("Cycles?"),
gettext_noop("Cache"));
gettext_noop("no"));
appendPQExpBuffer(&buf, "FROM %s", fmtId(schemaname));
/* must be separate because fmtId isn't reentrant */
appendPQExpBuffer(&buf, ".%s;", fmtId(relationname));
@ -1688,6 +1672,51 @@ describeOneTableDetails(const char *schemaname,
if (!res)
goto error_return;
numrows = PQntuples(res);
/* XXX reset to use expanded output for sequences (maybe we should
* keep this disabled, just like for tables?) */
myopt.expanded = pset.popt.topt.expanded;
printTableInit(&cont, &myopt, title.data, 7, numrows);
printTableInitialized = true;
printfPQExpBuffer(&title, _("Sequence \"%s.%s\""),
schemaname, relationname);
printTableAddHeader(&cont, gettext_noop("Type"), true, 'l');
printTableAddHeader(&cont, gettext_noop("Start"), true, 'r');
printTableAddHeader(&cont, gettext_noop("Minimum"), true, 'r');
printTableAddHeader(&cont, gettext_noop("Maximum"), true, 'r');
printTableAddHeader(&cont, gettext_noop("Increment"), true, 'r');
printTableAddHeader(&cont, gettext_noop("Cycles?"), true, 'l');
printTableAddHeader(&cont, gettext_noop("Cache"), true, 'r');
/* Generate table cells to be printed */
for (i = 0; i < numrows; i++)
{
/* Type */
printTableAddCell(&cont, PQgetvalue(res, i, 0), false, false);
/* Start */
printTableAddCell(&cont, PQgetvalue(res, i, 1), false, false);
/* Minimum */
printTableAddCell(&cont, PQgetvalue(res, i, 2), false, false);
/* Maximum */
printTableAddCell(&cont, PQgetvalue(res, i, 3), false, false);
/* Increment */
printTableAddCell(&cont, PQgetvalue(res, i, 4), false, false);
/* Cycles? */
printTableAddCell(&cont, PQgetvalue(res, i, 5), false, false);
/* Cache */
printTableAddCell(&cont, PQgetvalue(res, i, 6), false, false);
}
/* Footer information about a sequence */
/* Get the column that owns this sequence */
@ -1721,29 +1750,63 @@ describeOneTableDetails(const char *schemaname,
switch (PQgetvalue(result, 0, 1)[0])
{
case 'a':
footers[0] = psprintf(_("Owned by: %s"),
PQgetvalue(result, 0, 0));
printTableAddFooter(&cont,
psprintf(_("Owned by: %s"),
PQgetvalue(result, 0, 0)));
break;
case 'i':
footers[0] = psprintf(_("Sequence for identity column: %s"),
PQgetvalue(result, 0, 0));
printTableAddFooter(&cont,
psprintf(_("Sequence for identity column: %s"),
PQgetvalue(result, 0, 0)));
break;
}
}
PQclear(result);
printfPQExpBuffer(&title, _("Sequence \"%s.%s\""),
schemaname, relationname);
/* print any publications */
if (pset.sversion >= 150000)
{
int tuples = 0;
myopt.footers = footers;
myopt.topt.default_footer = false;
myopt.title = title.data;
myopt.translate_header = true;
printfPQExpBuffer(&buf,
"SELECT pubname\n"
"FROM pg_catalog.pg_publication p\n"
" JOIN pg_catalog.pg_publication_namespace pn ON p.oid = pn.pnpubid\n"
" JOIN pg_catalog.pg_class pc ON pc.relnamespace = pn.pnnspid\n"
"WHERE pc.oid ='%s' and pn.pntype = 's' and pg_catalog.pg_relation_is_publishable('%s')\n"
"UNION\n"
"SELECT pubname\n"
"FROM pg_catalog.pg_publication p\n"
" JOIN pg_catalog.pg_publication_rel pr ON p.oid = pr.prpubid\n"
"WHERE pr.prrelid = '%s'\n"
"UNION\n"
"SELECT pubname\n"
"FROM pg_catalog.pg_publication p\n"
"WHERE p.puballsequences AND pg_catalog.pg_relation_is_publishable('%s')\n"
"ORDER BY 1;",
oid, oid, oid, oid);
printQuery(res, &myopt, pset.queryFout, false, pset.logfile);
result = PSQLexec(buf.data);
if (!result)
goto error_return;
else
tuples = PQntuples(result);
if (footers[0])
free(footers[0]);
if (tuples > 0)
printTableAddFooter(&cont, _("Publications:"));
/* Might be an empty set - that's ok */
for (i = 0; i < tuples; i++)
{
printfPQExpBuffer(&buf, " \"%s\"",
PQgetvalue(result, i, 0));
printTableAddFooter(&cont, buf.data);
}
PQclear(result);
}
printTable(&cont, pset.queryFout, false, pset.logfile);
retval = true;
goto error_return; /* not an error, just return early */
@ -1970,6 +2033,11 @@ describeOneTableDetails(const char *schemaname,
for (i = 0; i < cols; i++)
printTableAddHeader(&cont, headers[i], true, 'l');
res = PSQLexec(buf.data);
if (!res)
goto error_return;
numrows = PQntuples(res);
/* Generate table cells to be printed */
for (i = 0; i < numrows; i++)
{
@ -2895,7 +2963,7 @@ describeOneTableDetails(const char *schemaname,
"FROM pg_catalog.pg_publication p\n"
" JOIN pg_catalog.pg_publication_namespace pn ON p.oid = pn.pnpubid\n"
" JOIN pg_catalog.pg_class pc ON pc.relnamespace = pn.pnnspid\n"
"WHERE pc.oid ='%s' and pg_catalog.pg_relation_is_publishable('%s')\n"
"WHERE pc.oid ='%s' and pn.pntype = 't' and pg_catalog.pg_relation_is_publishable('%s')\n"
"UNION\n"
"SELECT pubname\n"
" , pg_get_expr(pr.prqual, c.oid)\n"
@ -4785,7 +4853,7 @@ listSchemas(const char *pattern, bool verbose, bool showSystem)
int i;
printfPQExpBuffer(&buf,
"SELECT pubname \n"
"SELECT pubname, (CASE WHEN pntype = 't' THEN 'tables' ELSE 'sequences' END) AS pubtype\n"
"FROM pg_catalog.pg_publication p\n"
" JOIN pg_catalog.pg_publication_namespace pn ON p.oid = pn.pnpubid\n"
" JOIN pg_catalog.pg_namespace n ON n.oid = pn.pnnspid \n"
@ -4814,8 +4882,9 @@ listSchemas(const char *pattern, bool verbose, bool showSystem)
/* Might be an empty set - that's ok */
for (i = 0; i < pub_schema_tuples; i++)
{
printfPQExpBuffer(&buf, " \"%s\"",
PQgetvalue(result, i, 0));
printfPQExpBuffer(&buf, " \"%s\" (%s)",
PQgetvalue(result, i, 0),
PQgetvalue(result, i, 1));
footers[i + 1] = pg_strdup(buf.data);
}
@ -5820,7 +5889,7 @@ listPublications(const char *pattern)
PQExpBufferData buf;
PGresult *res;
printQueryOpt myopt = pset.popt;
static const bool translate_columns[] = {false, false, false, false, false, false, false, false};
static const bool translate_columns[] = {false, false, false, false, false, false, false, false, false, false};
if (pset.sversion < 100000)
{
@ -5834,23 +5903,45 @@ listPublications(const char *pattern)
initPQExpBuffer(&buf);
printfPQExpBuffer(&buf,
"SELECT pubname AS \"%s\",\n"
" pg_catalog.pg_get_userbyid(pubowner) AS \"%s\",\n"
" puballtables AS \"%s\",\n"
" pubinsert AS \"%s\",\n"
" pubupdate AS \"%s\",\n"
" pubdelete AS \"%s\"",
gettext_noop("Name"),
gettext_noop("Owner"),
gettext_noop("All tables"),
gettext_noop("Inserts"),
gettext_noop("Updates"),
gettext_noop("Deletes"));
if (pset.sversion >= 150000)
printfPQExpBuffer(&buf,
"SELECT pubname AS \"%s\",\n"
" pg_catalog.pg_get_userbyid(pubowner) AS \"%s\",\n"
" puballtables AS \"%s\",\n"
" puballsequences AS \"%s\",\n"
" pubinsert AS \"%s\",\n"
" pubupdate AS \"%s\",\n"
" pubdelete AS \"%s\"",
gettext_noop("Name"),
gettext_noop("Owner"),
gettext_noop("All tables"),
gettext_noop("All sequences"),
gettext_noop("Inserts"),
gettext_noop("Updates"),
gettext_noop("Deletes"));
else
printfPQExpBuffer(&buf,
"SELECT pubname AS \"%s\",\n"
" pg_catalog.pg_get_userbyid(pubowner) AS \"%s\",\n"
" puballtables AS \"%s\",\n"
" pubinsert AS \"%s\",\n"
" pubupdate AS \"%s\",\n"
" pubdelete AS \"%s\"",
gettext_noop("Name"),
gettext_noop("Owner"),
gettext_noop("All tables"),
gettext_noop("Inserts"),
gettext_noop("Updates"),
gettext_noop("Deletes"));
if (pset.sversion >= 110000)
appendPQExpBuffer(&buf,
",\n pubtruncate AS \"%s\"",
gettext_noop("Truncates"));
if (pset.sversion >= 150000)
appendPQExpBuffer(&buf,
",\n pubsequence AS \"%s\"",
gettext_noop("Sequences"));
if (pset.sversion >= 130000)
appendPQExpBuffer(&buf,
",\n pubviaroot AS \"%s\"",
@ -5936,6 +6027,7 @@ describePublications(const char *pattern)
PGresult *res;
bool has_pubtruncate;
bool has_pubviaroot;
bool has_pubsequence;
PQExpBufferData title;
printTableContent cont;
@ -5952,6 +6044,7 @@ describePublications(const char *pattern)
has_pubtruncate = (pset.sversion >= 110000);
has_pubviaroot = (pset.sversion >= 130000);
has_pubsequence = (pset.sversion >= 150000);
initPQExpBuffer(&buf);
@ -5959,12 +6052,17 @@ describePublications(const char *pattern)
"SELECT oid, pubname,\n"
" pg_catalog.pg_get_userbyid(pubowner) AS owner,\n"
" puballtables, pubinsert, pubupdate, pubdelete");
if (has_pubtruncate)
appendPQExpBufferStr(&buf,
", pubtruncate");
if (has_pubviaroot)
appendPQExpBufferStr(&buf,
", pubviaroot");
if (has_pubsequence)
appendPQExpBufferStr(&buf,
", puballsequences, pubsequence");
appendPQExpBufferStr(&buf,
"\nFROM pg_catalog.pg_publication\n");
@ -6005,6 +6103,7 @@ describePublications(const char *pattern)
char *pubid = PQgetvalue(res, i, 0);
char *pubname = PQgetvalue(res, i, 1);
bool puballtables = strcmp(PQgetvalue(res, i, 3), "t") == 0;
bool puballsequences = strcmp(PQgetvalue(res, i, 9), "t") == 0;
printTableOpt myopt = pset.popt.topt;
if (has_pubtruncate)
@ -6012,29 +6111,43 @@ describePublications(const char *pattern)
if (has_pubviaroot)
ncols++;
/* sequences have two extra columns (puballsequences, pubsequences) */
if (has_pubsequence)
ncols += 2;
initPQExpBuffer(&title);
printfPQExpBuffer(&title, _("Publication %s"), pubname);
printTableInit(&cont, &myopt, title.data, ncols, nrows);
printTableAddHeader(&cont, gettext_noop("Owner"), true, align);
printTableAddHeader(&cont, gettext_noop("All tables"), true, align);
if (has_pubsequence)
printTableAddHeader(&cont, gettext_noop("All sequences"), true, align);
printTableAddHeader(&cont, gettext_noop("Inserts"), true, align);
printTableAddHeader(&cont, gettext_noop("Updates"), true, align);
printTableAddHeader(&cont, gettext_noop("Deletes"), true, align);
if (has_pubtruncate)
printTableAddHeader(&cont, gettext_noop("Truncates"), true, align);
if (has_pubsequence)
printTableAddHeader(&cont, gettext_noop("Sequences"), true, align);
if (has_pubviaroot)
printTableAddHeader(&cont, gettext_noop("Via root"), true, align);
printTableAddCell(&cont, PQgetvalue(res, i, 2), false, false);
printTableAddCell(&cont, PQgetvalue(res, i, 3), false, false);
printTableAddCell(&cont, PQgetvalue(res, i, 4), false, false);
printTableAddCell(&cont, PQgetvalue(res, i, 5), false, false);
printTableAddCell(&cont, PQgetvalue(res, i, 6), false, false);
printTableAddCell(&cont, PQgetvalue(res, i, 2), false, false); /* owner */
printTableAddCell(&cont, PQgetvalue(res, i, 3), false, false); /* all tables */
if (has_pubsequence)
printTableAddCell(&cont, PQgetvalue(res, i, 9), false, false); /* all sequences */
printTableAddCell(&cont, PQgetvalue(res, i, 4), false, false); /* insert */
printTableAddCell(&cont, PQgetvalue(res, i, 5), false, false); /* update */
printTableAddCell(&cont, PQgetvalue(res, i, 6), false, false); /* delete */
if (has_pubtruncate)
printTableAddCell(&cont, PQgetvalue(res, i, 7), false, false);
printTableAddCell(&cont, PQgetvalue(res, i, 7), false, false); /* truncate */
if (has_pubsequence)
printTableAddCell(&cont, PQgetvalue(res, i, 10), false, false); /* sequence */
if (has_pubviaroot)
printTableAddCell(&cont, PQgetvalue(res, i, 8), false, false);
printTableAddCell(&cont, PQgetvalue(res, i, 8), false, false); /* via root */
if (!puballtables)
{
@ -6054,6 +6167,7 @@ describePublications(const char *pattern)
"WHERE c.relnamespace = n.oid\n"
" AND c.oid = pr.prrelid\n"
" AND pr.prpubid = '%s'\n"
" AND c.relkind != 'S'\n" /* exclude sequences */
"ORDER BY 1,2", pubid);
if (!addFooterToPublicationDesc(&buf, "Tables:", false, &cont))
goto error_return;
@ -6065,7 +6179,7 @@ describePublications(const char *pattern)
"SELECT n.nspname\n"
"FROM pg_catalog.pg_namespace n\n"
" JOIN pg_catalog.pg_publication_namespace pn ON n.oid = pn.pnnspid\n"
"WHERE pn.pnpubid = '%s'\n"
"WHERE pn.pnpubid = '%s' AND pn.pntype = 't'\n"
"ORDER BY 1", pubid);
if (!addFooterToPublicationDesc(&buf, "Tables from schemas:",
true, &cont))
@ -6073,6 +6187,37 @@ describePublications(const char *pattern)
}
}
if (!puballsequences)
{
/* Get the tables for the specified publication */
printfPQExpBuffer(&buf,
"SELECT n.nspname, c.relname, NULL\n"
"FROM pg_catalog.pg_class c,\n"
" pg_catalog.pg_namespace n,\n"
" pg_catalog.pg_publication_rel pr\n"
"WHERE c.relnamespace = n.oid\n"
" AND c.oid = pr.prrelid\n"
" AND pr.prpubid = '%s'\n"
" AND c.relkind = 'S'\n" /* only sequences */
"ORDER BY 1,2", pubid);
if (!addFooterToPublicationDesc(&buf, "Sequences:", false, &cont))
goto error_return;
if (pset.sversion >= 150000)
{
/* Get the schemas for the specified publication */
printfPQExpBuffer(&buf,
"SELECT n.nspname\n"
"FROM pg_catalog.pg_namespace n\n"
" JOIN pg_catalog.pg_publication_namespace pn ON n.oid = pn.pnnspid\n"
"WHERE pn.pnpubid = '%s' AND pn.pntype = 's'\n"
"ORDER BY 1", pubid);
if (!addFooterToPublicationDesc(&buf, "Sequences from schemas:",
true, &cont))
goto error_return;
}
}
printTable(&cont, pset.queryFout, false, pset.logfile);
printTableCleanup(&cont);

12
src/bin/psql/tab-complete.c
View File

@ -1815,11 +1815,15 @@ psql_completion(const char *text, int start, int end)
COMPLETE_WITH("ADD", "DROP", "OWNER TO", "RENAME TO", "SET");
/* ALTER PUBLICATION <name> ADD */
else if (Matches("ALTER", "PUBLICATION", MatchAny, "ADD"))
COMPLETE_WITH("ALL TABLES IN SCHEMA", "TABLE");
COMPLETE_WITH("ALL TABLES IN SCHEMA", "ALL SEQUENCES IN SCHEMA", "TABLE", "SEQUENCE");
else if (Matches("ALTER", "PUBLICATION", MatchAny, "ADD|SET", "TABLE") ||
(HeadMatches("ALTER", "PUBLICATION", MatchAny, "ADD|SET", "TABLE") &&
ends_with(prev_wd, ',')))
COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_tables);
else if (Matches("ALTER", "PUBLICATION", MatchAny, "ADD|SET", "SEQUENCE") ||
(HeadMatches("ALTER", "PUBLICATION", MatchAny, "ADD|SET", "SEQUENCE") &&
ends_with(prev_wd, ',')))
COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_sequences);
/*
* "ALTER PUBLICATION <name> SET TABLE <name> WHERE (" - complete with
* table attributes
@ -1838,11 +1842,11 @@ psql_completion(const char *text, int start, int end)
COMPLETE_WITH(",");
/* ALTER PUBLICATION <name> DROP */
else if (Matches("ALTER", "PUBLICATION", MatchAny, "DROP"))
COMPLETE_WITH("ALL TABLES IN SCHEMA", "TABLE");
COMPLETE_WITH("ALL TABLES IN SCHEMA", "ALL SEQUENCES IN SCHEMA", "TABLE", "SEQUENCE");
/* ALTER PUBLICATION <name> SET */
else if (Matches("ALTER", "PUBLICATION", MatchAny, "SET"))
COMPLETE_WITH("(", "ALL TABLES IN SCHEMA", "TABLE");
else if (Matches("ALTER", "PUBLICATION", MatchAny, "ADD|DROP|SET", "ALL", "TABLES", "IN", "SCHEMA"))
COMPLETE_WITH("(", "ALL TABLES IN SCHEMA", "ALL SEQUENCES IN SCHEMA", "TABLE", "SEQUENCE");
else if (Matches("ALTER", "PUBLICATION", MatchAny, "ADD|DROP|SET", "ALL", "TABLES|SEQUENCES", "IN", "SCHEMA"))
COMPLETE_WITH_QUERY_PLUS(Query_for_list_of_schemas
" AND nspname NOT LIKE E'pg\\\\_%%'",
"CURRENT_SCHEMA");

5
src/include/catalog/pg_proc.dat
View File

@ -11540,6 +11540,11 @@
provolatile => 's', prorettype => 'oid', proargtypes => 'text',
proallargtypes => '{text,oid}', proargmodes => '{i,o}',
proargnames => '{pubname,relid}', prosrc => 'pg_get_publication_tables' },
{ oid => '8000', descr => 'get OIDs of sequences in a publication',
proname => 'pg_get_publication_sequences', prorows => '1000', proretset => 't',
provolatile => 's', prorettype => 'oid', proargtypes => 'text',
proallargtypes => '{text,oid}', proargmodes => '{i,o}',
proargnames => '{pubname,relid}', prosrc => 'pg_get_publication_sequences' },
{ oid => '6121',
descr => 'returns whether a relation can be part of a publication',
proname => 'pg_relation_is_publishable', provolatile => 's',

26
src/include/catalog/pg_publication.h
View File

@ -40,6 +40,12 @@ CATALOG(pg_publication,6104,PublicationRelationId)
*/
bool puballtables;
/*
* indicates that this is special publication which should encompass all
* sequences in the database (except for the unlogged and temp ones)
*/
bool puballsequences;
/* true if inserts are published */
bool pubinsert;
@ -52,6 +58,9 @@ CATALOG(pg_publication,6104,PublicationRelationId)
/* true if truncates are published */
bool pubtruncate;
/* true if sequences are published */
bool pubsequence;
/* true if partition changes are published using root schema */
bool pubviaroot;
} FormData_pg_publication;
@ -72,6 +81,7 @@ typedef struct PublicationActions
bool pubupdate;
bool pubdelete;
bool pubtruncate;
bool pubsequence;
} PublicationActions;
typedef struct PublicationDesc
@ -92,6 +102,7 @@ typedef struct Publication
Oid oid;
char *name;
bool alltables;
bool allsequences;
bool pubviaroot;
PublicationActions pubactions;
} Publication;
@ -122,14 +133,15 @@ typedef enum PublicationPartOpt
PUBLICATION_PART_ALL,
} PublicationPartOpt;
extern List *GetPublicationRelations(Oid pubid, PublicationPartOpt pub_partopt);
extern List *GetPublicationRelations(Oid pubid, char objectType,
PublicationPartOpt pub_partopt);
extern List *GetAllTablesPublications(void);
extern List *GetAllTablesPublicationRelations(bool pubviaroot);
extern List *GetPublicationSchemas(Oid pubid);
extern List *GetSchemaPublications(Oid schemaid);
extern List *GetSchemaPublicationRelations(Oid schemaid,
extern List *GetPublicationSchemas(Oid pubid, char objectType);
extern List *GetSchemaPublications(Oid schemaid, char objectType);
extern List *GetSchemaPublicationRelations(Oid schemaid, char objectType,
PublicationPartOpt pub_partopt);
extern List *GetAllSchemaPublicationRelations(Oid puboid,
extern List *GetAllSchemaPublicationRelations(Oid puboid, char objectType,
PublicationPartOpt pub_partopt);
extern List *GetPubPartitionOptionRelations(List *result,
PublicationPartOpt pub_partopt,
@ -137,11 +149,15 @@ extern List *GetPubPartitionOptionRelations(List *result,
extern Oid GetTopMostAncestorInPublication(Oid puboid, List *ancestors,
int *ancestor_level);
extern List *GetAllSequencesPublications(void);
extern List *GetAllSequencesPublicationRelations(void);
extern bool is_publishable_relation(Relation rel);
extern bool is_schema_publication(Oid pubid);
extern ObjectAddress publication_add_relation(Oid pubid, PublicationRelInfo *pri,
bool if_not_exists);
extern ObjectAddress publication_add_schema(Oid pubid, Oid schemaid,
char objectType,
bool if_not_exists);
extern Oid get_publication_oid(const char *pubname, bool missing_ok);

10
src/include/catalog/pg_publication_namespace.h
View File

@ -32,6 +32,7 @@ CATALOG(pg_publication_namespace,8901,PublicationNamespaceRelationId)
Oid oid; /* oid */
Oid pnpubid BKI_LOOKUP(pg_publication); /* Oid of the publication */
Oid pnnspid BKI_LOOKUP(pg_namespace); /* Oid of the schema */
char pntype; /* object type to include */
} FormData_pg_publication_namespace;
/* ----------------
@ -42,6 +43,13 @@ CATALOG(pg_publication_namespace,8901,PublicationNamespaceRelationId)
typedef FormData_pg_publication_namespace *Form_pg_publication_namespace;
DECLARE_UNIQUE_INDEX_PKEY(pg_publication_namespace_oid_index, 8902, PublicationNamespaceObjectIndexId, on pg_publication_namespace using btree(oid oid_ops));
DECLARE_UNIQUE_INDEX(pg_publication_namespace_pnnspid_pnpubid_index, 8903, PublicationNamespacePnnspidPnpubidIndexId, on pg_publication_namespace using btree(pnnspid oid_ops, pnpubid oid_ops));
DECLARE_UNIQUE_INDEX(pg_publication_namespace_pnnspid_pnpubid_pntype_index, 8903, PublicationNamespacePnnspidPnpubidPntypeIndexId, on pg_publication_namespace using btree(pnnspid oid_ops, pnpubid oid_ops, pntype char_ops));
/* object type to include from a schema, maps to relkind */
#define PUB_OBJTYPE_TABLE 't' /* table (regular or partitioned) */
#define PUB_OBJTYPE_SEQUENCE 's' /* sequence object */
#define PUB_OBJTYPE_UNSUPPORTED 'u' /* used for non-replicated types */
extern char pub_get_object_type_for_relkind(char relkind);
#endif /* PG_PUBLICATION_NAMESPACE_H */

1
src/include/commands/sequence.h
View File

@ -60,6 +60,7 @@ extern ObjectAddress DefineSequence(ParseState *pstate, CreateSeqStmt *stmt);
extern ObjectAddress AlterSequence(ParseState *pstate, AlterSeqStmt *stmt);
extern void DeleteSequenceTuple(Oid relid);
extern void ResetSequence(Oid seq_relid);
extern void SetSequence(Oid seq_relid, bool transactional, int64 last_value, int64 log_cnt, bool is_called);
extern void ResetSequenceCaches(void);
extern void seq_redo(XLogReaderState *rptr);

8
src/include/nodes/parsenodes.h
View File

@ -3665,6 +3665,10 @@ typedef enum PublicationObjSpecType
PUBLICATIONOBJ_TABLES_IN_SCHEMA, /* All tables in schema */
PUBLICATIONOBJ_TABLES_IN_CUR_SCHEMA, /* All tables in first element of
* search_path */
PUBLICATIONOBJ_SEQUENCE, /* Sequence type */
PUBLICATIONOBJ_SEQUENCES_IN_SCHEMA, /* Sequences in schema type */
PUBLICATIONOBJ_SEQUENCES_IN_CUR_SCHEMA, /* Get the first element of
* search_path */
PUBLICATIONOBJ_CONTINUATION /* Continuation of previous type */
} PublicationObjSpecType;
@ -3683,7 +3687,7 @@ typedef struct CreatePublicationStmt
char *pubname; /* Name of the publication */
List *options; /* List of DefElem nodes */
List *pubobjects; /* Optional list of publication objects */
bool for_all_tables; /* Special publication for all tables in db */
List *for_all_objects; /* Special publication for all objects in db */
} CreatePublicationStmt;
typedef enum AlterPublicationAction
@ -3706,7 +3710,7 @@ typedef struct AlterPublicationStmt
* objects.
*/
List *pubobjects; /* Optional list of publication objects */
bool for_all_tables; /* Special publication for all tables in db */
List *for_all_objects; /* Special publication for all objects in db */
AlterPublicationAction action; /* What action to perform with the given
* objects */
} AlterPublicationStmt;

19
src/include/replication/logicalproto.h
View File

@ -61,6 +61,7 @@ typedef enum LogicalRepMsgType
LOGICAL_REP_MSG_RELATION = 'R',
LOGICAL_REP_MSG_TYPE = 'Y',
LOGICAL_REP_MSG_MESSAGE = 'M',
LOGICAL_REP_MSG_SEQUENCE = 'Q',
LOGICAL_REP_MSG_BEGIN_PREPARE = 'b',
LOGICAL_REP_MSG_PREPARE = 'P',
LOGICAL_REP_MSG_COMMIT_PREPARED = 'K',
@ -118,6 +119,18 @@ typedef struct LogicalRepTyp
char *typname; /* name of the remote type */
} LogicalRepTyp;
/* Sequence info */
typedef struct LogicalRepSequence
{
Oid remoteid; /* unique id of the remote sequence */
char *nspname; /* schema name of remote sequence */
char *seqname; /* name of the remote sequence */
bool transactional;
int64 last_value;
int64 log_cnt;
bool is_called;
} LogicalRepSequence;
/* Transaction info */
typedef struct LogicalRepBeginData
{
@ -230,6 +243,12 @@ extern List *logicalrep_read_truncate(StringInfo in,
bool *cascade, bool *restart_seqs);
extern void logicalrep_write_message(StringInfo out, TransactionId xid, XLogRecPtr lsn,
bool transactional, const char *prefix, Size sz, const char *message);
extern void logicalrep_write_sequence(StringInfo out, Relation rel,
TransactionId xid, XLogRecPtr lsn,
bool transactional,
int64 last_value, int64 log_cnt,
bool is_called);
extern void logicalrep_read_sequence(StringInfo in, LogicalRepSequence *seqdata);
extern void logicalrep_write_rel(StringInfo out, TransactionId xid,
Relation rel);
extern LogicalRepRelation *logicalrep_read_rel(StringInfo in);

1
src/include/replication/pgoutput.h
View File

@ -29,6 +29,7 @@ typedef struct PGOutputData
bool streaming;
bool messages;
bool two_phase;
bool sequences;
} PGOutputData;
#endif /* PGOUTPUT_H */

10
src/test/regress/expected/object_address.out
View File

@ -46,6 +46,7 @@ CREATE TRANSFORM FOR int LANGUAGE SQL (
SET client_min_messages = 'ERROR';
CREATE PUBLICATION addr_pub FOR TABLE addr_nsp.gentable;
CREATE PUBLICATION addr_pub_schema FOR ALL TABLES IN SCHEMA addr_nsp;
CREATE PUBLICATION addr_pub_schema2 FOR ALL SEQUENCES IN SCHEMA addr_nsp;
RESET client_min_messages;
CREATE SUBSCRIPTION regress_addr_sub CONNECTION '' PUBLICATION bar WITH (connect = false, slot_name = NONE);
WARNING: tables were not subscribed, you will have to run ALTER SUBSCRIPTION ... REFRESH PUBLICATION to subscribe the tables
@ -428,7 +429,8 @@ WITH objects (type, name, args) AS (VALUES
('transform', '{int}', '{sql}'),
('access method', '{btree}', '{}'),
('publication', '{addr_pub}', '{}'),
('publication namespace', '{addr_nsp}', '{addr_pub_schema}'),
('publication namespace', '{addr_nsp}', '{addr_pub_schema,t}'),
('publication namespace', '{addr_nsp}', '{addr_pub_schema2,s}'),
('publication relation', '{addr_nsp, gentable}', '{addr_pub}'),
('subscription', '{regress_addr_sub}', '{}'),
('statistics object', '{addr_nsp, gentable_stat}', '{}')
@ -492,8 +494,9 @@ SELECT (pg_identify_object(addr1.classid, addr1.objid, addr1.objsubid)).*,
subscription | | regress_addr_sub | regress_addr_sub | t
publication | | addr_pub | addr_pub | t
publication relation | | | addr_nsp.gentable in publication addr_pub | t
publication namespace | | | addr_nsp in publication addr_pub_schema | t
(50 rows)
publication namespace | | | addr_nsp in publication addr_pub_schema type t | t
publication namespace | | | addr_nsp in publication addr_pub_schema2 type s | t
(51 rows)
---
--- Cleanup resources
@ -506,6 +509,7 @@ drop cascades to server integer
drop cascades to user mapping for regress_addr_user on server integer
DROP PUBLICATION addr_pub;
DROP PUBLICATION addr_pub_schema;
DROP PUBLICATION addr_pub_schema2;
DROP SUBSCRIPTION regress_addr_sub;
DROP SCHEMA addr_nsp CASCADE;
NOTICE: drop cascades to 14 other objects

1009
src/test/regress/expected/publication.out
View File

File diff suppressed because it is too large Load Diff

8
src/test/regress/expected/rules.out
View File

@ -1429,6 +1429,14 @@ pg_prepared_xacts| SELECT p.transaction,
FROM ((pg_prepared_xact() p(transaction, gid, prepared, ownerid, dbid)
LEFT JOIN pg_authid u ON ((p.ownerid = u.oid)))
LEFT JOIN pg_database d ON ((p.dbid = d.oid)));
pg_publication_sequences| SELECT p.pubname,
n.nspname AS schemaname,
c.relname AS sequencename
FROM pg_publication p,
LATERAL pg_get_publication_sequences((p.pubname)::text) gps(relid),
(pg_class c
JOIN pg_namespace n ON ((n.oid = c.relnamespace)))
WHERE (c.oid = gps.relid);
pg_publication_tables| SELECT p.pubname,
n.nspname AS schemaname,
c.relname AS tablename

5
src/test/regress/sql/object_address.sql
View File

@ -49,6 +49,7 @@ CREATE TRANSFORM FOR int LANGUAGE SQL (
SET client_min_messages = 'ERROR';
CREATE PUBLICATION addr_pub FOR TABLE addr_nsp.gentable;
CREATE PUBLICATION addr_pub_schema FOR ALL TABLES IN SCHEMA addr_nsp;
CREATE PUBLICATION addr_pub_schema2 FOR ALL SEQUENCES IN SCHEMA addr_nsp;
RESET client_min_messages;
CREATE SUBSCRIPTION regress_addr_sub CONNECTION '' PUBLICATION bar WITH (connect = false, slot_name = NONE);
CREATE STATISTICS addr_nsp.gentable_stat ON a, b FROM addr_nsp.gentable;
@ -198,7 +199,8 @@ WITH objects (type, name, args) AS (VALUES
('transform', '{int}', '{sql}'),
('access method', '{btree}', '{}'),
('publication', '{addr_pub}', '{}'),
('publication namespace', '{addr_nsp}', '{addr_pub_schema}'),
('publication namespace', '{addr_nsp}', '{addr_pub_schema,t}'),
('publication namespace', '{addr_nsp}', '{addr_pub_schema2,s}'),
('publication relation', '{addr_nsp, gentable}', '{addr_pub}'),
('subscription', '{regress_addr_sub}', '{}'),
('statistics object', '{addr_nsp, gentable_stat}', '{}')
@ -218,6 +220,7 @@ SELECT (pg_identify_object(addr1.classid, addr1.objid, addr1.objsubid)).*,
DROP FOREIGN DATA WRAPPER addr_fdw CASCADE;
DROP PUBLICATION addr_pub;
DROP PUBLICATION addr_pub_schema;
DROP PUBLICATION addr_pub_schema2;
DROP SUBSCRIPTION regress_addr_sub;
DROP SCHEMA addr_nsp CASCADE;

226
src/test/regress/sql/publication.sql
View File

@ -27,7 +27,7 @@ CREATE PUBLICATION testpub_xxx WITH (publish_via_partition_root = 'true', publis
\dRp
ALTER PUBLICATION testpub_default SET (publish = 'insert, update, delete');
ALTER PUBLICATION testpub_default SET (publish = 'insert, update, delete, sequence');
\dRp
@ -46,6 +46,8 @@ ALTER PUBLICATION testpub_foralltables SET (publish = 'insert, update');
CREATE TABLE testpub_tbl2 (id serial primary key, data text);
-- fail - can't add to for all tables publication
ALTER PUBLICATION testpub_foralltables ADD TABLE testpub_tbl2;
-- fail - can't add a table using ADD SEQUENCE command
ALTER PUBLICATION testpub_foralltables ADD SEQUENCE testpub_tbl2;
-- fail - can't drop from all tables publication
ALTER PUBLICATION testpub_foralltables DROP TABLE testpub_tbl2;
-- fail - can't add to for all tables publication
@ -104,6 +106,183 @@ RESET client_min_messages;
DROP TABLE testpub_tbl3, testpub_tbl3a;
DROP PUBLICATION testpub3, testpub4;
--- adding sequences
CREATE SEQUENCE testpub_seq0;
CREATE SEQUENCE pub_test.testpub_seq1;
SET client_min_messages = 'ERROR';
CREATE PUBLICATION testpub_forallsequences FOR ALL SEQUENCES WITH (publish = 'sequence');
RESET client_min_messages;
ALTER PUBLICATION testpub_forallsequences SET (publish = 'insert, sequence');
CREATE SEQUENCE testpub_seq2;
-- fail - can't add to for all sequences publication
ALTER PUBLICATION testpub_forallsequences ADD SEQUENCE testpub_seq2;
-- fail - can't drop from all sequences publication
ALTER PUBLICATION testpub_forallsequences DROP SEQUENCE testpub_seq2;
-- fail - can't add to for all sequences publication
ALTER PUBLICATION testpub_forallsequences SET SEQUENCE pub_test.testpub_seq1;
-- fail - can't add schema to 'FOR ALL SEQUENCES' publication
ALTER PUBLICATION testpub_forallsequences ADD ALL SEQUENCES IN SCHEMA pub_test;
-- fail - can't drop schema from 'FOR ALL SEQUENCES' publication
ALTER PUBLICATION testpub_forallsequences DROP ALL SEQUENCES IN SCHEMA pub_test;
-- fail - can't set schema to 'FOR ALL SEQUENCES' publication
ALTER PUBLICATION testpub_forallsequences SET ALL SEQUENCES IN SCHEMA pub_test;
SET client_min_messages = 'ERROR';
CREATE PUBLICATION testpub_forsequence FOR SEQUENCE testpub_seq0;
RESET client_min_messages;
-- should be able to add schema to 'FOR SEQUENCE' publication
ALTER PUBLICATION testpub_forsequence ADD ALL SEQUENCES IN SCHEMA pub_test;
\dRp+ testpub_forsequence
-- fail - can't add sequence from the schema we already added
ALTER PUBLICATION testpub_forsequence ADD SEQUENCE pub_test.testpub_seq1;
-- fail - can't add sequence using ADD TABLE command
ALTER PUBLICATION testpub_forsequence ADD TABLE pub_test.testpub_seq1;
-- should be able to drop schema from 'FOR SEQUENCE' publication
ALTER PUBLICATION testpub_forsequence DROP ALL SEQUENCES IN SCHEMA pub_test;
\dRp+ testpub_forsequence
-- should be able to set schema to 'FOR SEQUENCE' publication
ALTER PUBLICATION testpub_forsequence SET ALL SEQUENCES IN SCHEMA pub_test;
\dRp+ testpub_forsequence
SET client_min_messages = 'ERROR';
CREATE PUBLICATION testpub_forschema FOR ALL SEQUENCES IN SCHEMA pub_test;
RESET client_min_messages;
-- fail - can't create publication with schema and sequence of the same schema
CREATE PUBLICATION testpub_for_seq_schema FOR ALL SEQUENCES IN SCHEMA pub_test, SEQUENCE pub_test.testpub_seq1;
-- fail - can't add a sequence of the same schema to the schema publication
ALTER PUBLICATION testpub_forschema ADD SEQUENCE pub_test.testpub_seq1;
-- fail - can't drop a sequence from the schema publication which isn't in the
-- publication
ALTER PUBLICATION testpub_forschema DROP SEQUENCE pub_test.testpub_seq1;
-- should be able to set sequence to schema publication
ALTER PUBLICATION testpub_forschema SET SEQUENCE pub_test.testpub_seq1;
\dRp+ testpub_forschema
SELECT pubname, puballtables, puballsequences FROM pg_publication WHERE pubname = 'testpub_forallsequences';
\d+ pub_test.testpub_seq1
\dRp+ testpub_forallsequences
DROP SEQUENCE testpub_seq0, pub_test.testpub_seq1, testpub_seq2;
DROP PUBLICATION testpub_forallsequences, testpub_forsequence, testpub_forschema;
-- Publication mixing tables and sequences
SET client_min_messages = 'ERROR';
CREATE PUBLICATION testpub_mix;
RESET client_min_messages;
CREATE SEQUENCE testpub_seq1;
CREATE SEQUENCE pub_test.testpub_seq2;
ALTER PUBLICATION testpub_mix ADD SEQUENCE testpub_seq1, TABLE testpub_tbl1;
\dRp+ testpub_mix
ALTER PUBLICATION testpub_mix ADD ALL SEQUENCES IN SCHEMA pub_test, ALL TABLES IN SCHEMA pub_test;
\dRp+ testpub_mix
ALTER PUBLICATION testpub_mix DROP ALL SEQUENCES IN SCHEMA pub_test;
\dRp+ testpub_mix
ALTER PUBLICATION testpub_mix DROP ALL TABLES IN SCHEMA pub_test;
\dRp+ testpub_mix
DROP PUBLICATION testpub_mix;
DROP SEQUENCE testpub_seq1;
DROP SEQUENCE pub_test.testpub_seq2;
-- make sure we replicate only the correct relation type
CREATE SCHEMA pub_test1;
CREATE SEQUENCE pub_test1.test_seq1;
CREATE TABLE pub_test1.test_tbl1 (a int primary key, b int);
CREATE SCHEMA pub_test2;
CREATE SEQUENCE pub_test2.test_seq2;
CREATE TABLE pub_test2.test_tbl2 (a int primary key, b int);
SET client_min_messages = 'ERROR';
CREATE PUBLICATION testpub_schemas;
RESET client_min_messages;
-- add tables from one schema, sequences from the other
ALTER PUBLICATION testpub_schemas ADD ALL TABLES IN SCHEMA pub_test2;
ALTER PUBLICATION testpub_schemas ADD ALL SEQUENCES IN SCHEMA pub_test1;
\dRp+ testpub_schemas
\dn+ pub_test1
\dn+ pub_test2
\d+ pub_test1.test_seq1;
\d+ pub_test1.test_tbl1;
\d+ pub_test2.test_seq2;
\d+ pub_test2.test_tbl2;
-- add the other object type from each schema
ALTER PUBLICATION testpub_schemas ADD ALL TABLES IN SCHEMA pub_test1;
ALTER PUBLICATION testpub_schemas ADD ALL SEQUENCES IN SCHEMA pub_test2;
\dRp+ testpub_schemas
\dn+ pub_test1
\dn+ pub_test2
\d+ pub_test1.test_seq1;
\d+ pub_test1.test_tbl1;
\d+ pub_test2.test_seq2;
\d+ pub_test2.test_tbl2;
-- now drop the object type added first
ALTER PUBLICATION testpub_schemas DROP ALL TABLES IN SCHEMA pub_test2;
ALTER PUBLICATION testpub_schemas DROP ALL SEQUENCES IN SCHEMA pub_test1;
\dRp+ testpub_schemas
\dn+ pub_test1
\dn+ pub_test2
\d+ pub_test1.test_seq1;
\d+ pub_test1.test_tbl1;
\d+ pub_test2.test_seq2;
\d+ pub_test2.test_tbl2;
-- should fail (publication contains the whole schema)
ALTER PUBLICATION testpub_schemas ADD TABLE pub_test1.test_tbl1;
ALTER PUBLICATION testpub_schemas ADD SEQUENCE pub_test2.test_seq2;
-- should work (different schema)
ALTER PUBLICATION testpub_schemas ADD TABLE pub_test2.test_tbl2;
ALTER PUBLICATION testpub_schemas ADD SEQUENCE pub_test1.test_seq1;
\dRp+ testpub_schemas
\d+ pub_test1.test_seq1;
\d+ pub_test1.test_tbl1;
\d+ pub_test2.test_seq2;
\d+ pub_test2.test_tbl2;
-- now drop the explicitly added objects again
ALTER PUBLICATION testpub_schemas DROP TABLE pub_test2.test_tbl2;
ALTER PUBLICATION testpub_schemas DROP SEQUENCE pub_test1.test_seq1;
\dRp+ testpub_schemas
\d+ pub_test1.test_seq1;
\d+ pub_test1.test_tbl1;
\d+ pub_test2.test_seq2;
\d+ pub_test2.test_tbl2;
DROP PUBLICATION testpub_schemas;
DROP TABLE pub_test1.test_tbl1, pub_test2.test_tbl2;
DROP SEQUENCE pub_test1.test_seq1, pub_test2.test_seq2;
DROP SCHEMA pub_test1, pub_test2;
-- Tests for partitioned tables
SET client_min_messages = 'ERROR';
CREATE PUBLICATION testpub_forparted;
@ -717,32 +896,51 @@ CREATE SCHEMA sch1;
CREATE SCHEMA sch2;
CREATE TABLE sch1.tbl1 (a int) PARTITION BY RANGE(a);
CREATE TABLE sch2.tbl1_part1 PARTITION OF sch1.tbl1 FOR VALUES FROM (1) to (10);
CREATE SEQUENCE sch1.seq1;
CREATE SEQUENCE sch2.seq2;
-- Schema publication that does not include the schema that has the parent table
CREATE PUBLICATION pub FOR ALL TABLES IN SCHEMA sch2 WITH (PUBLISH_VIA_PARTITION_ROOT=1);
ALTER PUBLICATION pub ADD ALL SEQUENCES IN SCHEMA sch2;
SELECT * FROM pg_publication_tables;
SELECT * FROM pg_publication_sequences;
DROP PUBLICATION pub;
-- Table publication that does not include the parent table
CREATE PUBLICATION pub FOR TABLE sch2.tbl1_part1 WITH (PUBLISH_VIA_PARTITION_ROOT=1);
ALTER PUBLICATION pub ADD SEQUENCE sch2.seq2;
SELECT * FROM pg_publication_tables;
SELECT * FROM pg_publication_sequences;
-- Table publication that includes both the parent table and the child table
ALTER PUBLICATION pub ADD TABLE sch1.tbl1;
ALTER PUBLICATION pub ADD SEQUENCE sch1.seq1;
SELECT * FROM pg_publication_tables;
SELECT * FROM pg_publication_sequences;
DROP PUBLICATION pub;
-- Schema publication that does not include the schema that has the parent table
CREATE PUBLICATION pub FOR ALL TABLES IN SCHEMA sch2 WITH (PUBLISH_VIA_PARTITION_ROOT=0);
ALTER PUBLICATION pub ADD SEQUENCE sch1.seq1;
SELECT * FROM pg_publication_tables;
SELECT * FROM pg_publication_sequences;
DROP PUBLICATION pub;
-- Sequence publication
CREATE PUBLICATION pub FOR SEQUENCE sch2.seq2;
SELECT * FROM pg_publication_tables;
SELECT * FROM pg_publication_sequences;
DROP PUBLICATION pub;
-- Table publication that does not include the parent table
CREATE PUBLICATION pub FOR TABLE sch2.tbl1_part1 WITH (PUBLISH_VIA_PARTITION_ROOT=0);
SELECT * FROM pg_publication_tables;
SELECT * FROM pg_publication_sequences;
-- Table publication that includes both the parent table and the child table
ALTER PUBLICATION pub ADD TABLE sch1.tbl1;
ALTER PUBLICATION pub ADD ALL SEQUENCES IN SCHEMA sch2;
SELECT * FROM pg_publication_tables;
SELECT * FROM pg_publication_sequences;
DROP PUBLICATION pub;
DROP TABLE sch2.tbl1_part1;
@ -755,10 +953,36 @@ CREATE TABLE sch1.tbl1_part3 (a int) PARTITION BY RANGE(a);
ALTER TABLE sch1.tbl1 ATTACH PARTITION sch1.tbl1_part3 FOR VALUES FROM (20) to (30);
CREATE PUBLICATION pub FOR ALL TABLES IN SCHEMA sch1 WITH (PUBLISH_VIA_PARTITION_ROOT=1);
SELECT * FROM pg_publication_tables;
SELECT * FROM pg_publication_sequences;
DROP PUBLICATION pub;
-- Schema publication
CREATE PUBLICATION pub FOR SEQUENCE sch2.seq2;
SELECT * FROM pg_publication_tables;
SELECT * FROM pg_publication_sequences;
DROP PUBLICATION pub;
-- Sequence publication
CREATE PUBLICATION pub FOR ALL SEQUENCES IN SCHEMA sch2;
SELECT * FROM pg_publication_tables;
SELECT * FROM pg_publication_sequences;
ALTER PUBLICATION pub ADD SEQUENCE sch1.seq1;
SELECT * FROM pg_publication_tables;
SELECT * FROM pg_publication_sequences;
ALTER PUBLICATION pub DROP SEQUENCE sch1.seq1;
SELECT * FROM pg_publication_tables;
SELECT * FROM pg_publication_sequences;
ALTER PUBLICATION pub ADD ALL SEQUENCES IN SCHEMA sch1;
SELECT * FROM pg_publication_tables;
SELECT * FROM pg_publication_sequences;
RESET client_min_messages;
DROP PUBLICATION pub;
DROP TABLE sch1.tbl1;
DROP SEQUENCE sch1.seq1, sch2.seq2;
DROP SCHEMA sch1 cascade;
DROP SCHEMA sch2 cascade;

202
src/test/subscription/t/030_sequences.pl Normal file
View File

@ -0,0 +1,202 @@
# Copyright (c) 2021, PostgreSQL Global Development Group
# This tests that sequences are replicated correctly by logical replication
use strict;
use warnings;
use PostgreSQL::Test::Cluster;
use PostgreSQL::Test::Utils;
use Test::More;
# Initialize publisher node
my $node_publisher = PostgreSQL::Test::Cluster->new('publisher');
$node_publisher->init(allows_streaming => 'logical');
$node_publisher->start;
# Create subscriber node
my $node_subscriber = PostgreSQL::Test::Cluster->new('subscriber');
$node_subscriber->init(allows_streaming => 'logical');
$node_subscriber->start;
# Create some preexisting content on publisher
my $ddl = qq(
CREATE TABLE seq_test (v BIGINT);
CREATE SEQUENCE s;
);
# Setup structure on the publisher
$node_publisher->safe_psql('postgres', $ddl);
# Create some the same structure on subscriber, and an extra sequence that
# we'll create on the publisher later
$ddl = qq(
CREATE TABLE seq_test (v BIGINT);
CREATE SEQUENCE s;
CREATE SEQUENCE s2;
);
$node_subscriber->safe_psql('postgres', $ddl);
# Setup logical replication
my $publisher_connstr = $node_publisher->connstr . ' dbname=postgres';
$node_publisher->safe_psql('postgres',
"CREATE PUBLICATION seq_pub");
$node_publisher->safe_psql('postgres',
"ALTER PUBLICATION seq_pub ADD SEQUENCE s");
$node_subscriber->safe_psql('postgres',
"CREATE SUBSCRIPTION seq_sub CONNECTION '$publisher_connstr' PUBLICATION seq_pub"
);
$node_publisher->wait_for_catchup('seq_sub');
# Wait for initial sync to finish as well
my $synced_query =
"SELECT count(1) = 0 FROM pg_subscription_rel WHERE srsubstate NOT IN ('s', 'r');";
$node_subscriber->poll_query_until('postgres', $synced_query)
or die "Timed out while waiting for subscriber to synchronize data";
# Insert initial test data
$node_publisher->safe_psql(
'postgres', qq(
-- generate a number of values using the sequence
INSERT INTO seq_test SELECT nextval('s') FROM generate_series(1,100);
));
$node_publisher->wait_for_catchup('seq_sub');
# Check the data on subscriber
my $result = $node_subscriber->safe_psql(
'postgres', qq(
SELECT * FROM s;
));
is( $result, '132|0|t',
'initial test data replicated');
# advance the sequence in a rolled-back transaction - the rollback
# does not wait for the replication, so we could see any intermediate state
# so do something else after the test, to ensure we wait for everything
$node_publisher->safe_psql(
'postgres', qq(
BEGIN;
INSERT INTO seq_test SELECT nextval('s') FROM generate_series(1,100);
ROLLBACK;
INSERT INTO seq_test VALUES (-1);
));
$node_publisher->wait_for_catchup('seq_sub');
# Check the data on subscriber
$result = $node_subscriber->safe_psql(
'postgres', qq(
SELECT * FROM s;
));
is( $result, '231|0|t',
'advance sequence in rolled-back transaction');
# create a new sequence and roll it back - should not be replicated, due to
# the transactional behavior
$node_publisher->safe_psql(
'postgres', qq(
BEGIN;
CREATE SEQUENCE s2;
ALTER PUBLICATION seq_pub ADD SEQUENCE s2;
INSERT INTO seq_test SELECT nextval('s2') FROM generate_series(1,100);
ROLLBACK;
));
$node_publisher->wait_for_catchup('seq_sub');
# Check the data on subscriber
$result = $node_subscriber->safe_psql(
'postgres', qq(
SELECT * FROM s2;
));
is( $result, '1|0|f',
'create new sequence and roll it back');
# create a new sequence, advance it in a rolled-back transaction, but commit
# the create - the advance should be replicated nevertheless
$node_publisher->safe_psql(
'postgres', qq(
BEGIN;
CREATE SEQUENCE s2;
ALTER PUBLICATION seq_pub ADD SEQUENCE s2;
SAVEPOINT sp1;
INSERT INTO seq_test SELECT nextval('s2') FROM generate_series(1,100);
ROLLBACK TO sp1;
COMMIT;
));
$node_publisher->wait_for_catchup('seq_sub');
# Wait for sync of the second sequence we just added to finish
$synced_query =
"SELECT count(1) = 0 FROM pg_subscription_rel WHERE srsubstate NOT IN ('s', 'r');";
$node_subscriber->poll_query_until('postgres', $synced_query)
or die "Timed out while waiting for subscriber to synchronize data";
# Check the data on subscriber
$result = $node_subscriber->safe_psql(
'postgres', qq(
SELECT * FROM s2;
));
is( $result, '132|0|t',
'create sequence, advance it in rolled-back transaction, but commit the create');
# advance the new sequence in a transaction, and roll it back - the rollback
# does not wait for the replication, so we could see any intermediate state
# so do something else after the test, to ensure we wait for everything
$node_publisher->safe_psql(
'postgres', qq(
BEGIN;
INSERT INTO seq_test SELECT nextval('s2') FROM generate_series(1,100);
ROLLBACK;
INSERT INTO seq_test VALUES (-1);
));
$node_publisher->wait_for_catchup('seq_sub');
# Check the data on subscriber
$result = $node_subscriber->safe_psql(
'postgres', qq(
SELECT * FROM s2;
));
is( $result, '231|0|t',
'advance the new sequence in a transaction and roll it back');
# advance the sequence in a subtransaction - the subtransaction gets rolled
# back, but commit the main one - the changes should still be replicated
$node_publisher->safe_psql(
'postgres', qq(
BEGIN;
SAVEPOINT s1;
INSERT INTO seq_test SELECT nextval('s2') FROM generate_series(1,100);
ROLLBACK TO s1;
COMMIT;
));
$node_publisher->wait_for_catchup('seq_sub');
# Check the data on subscriber
$result = $node_subscriber->safe_psql(
'postgres', qq(
SELECT * FROM s2;
));
is( $result, '330|0|t',
'advance sequence in a subtransaction');
done_testing();