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Implement function-local GUC parameter settings, as per recent discussion.

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There are still some loose ends: I didn't do anything about the SET FROM
CURRENT idea yet, and it's not real clear whether we are happy with the
interaction of SET LOCAL with function-local settings.  The documentation
is a bit spartan, too.
This commit is contained in:
Tom Lane 2007-09-03 00:39:26 +00:00
parent fcfe801ab8
commit 2abae34a2e
23 changed files with 2583 additions and 2151 deletions
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9
doc/src/sgml/catalogs.sgml
View File

@ -1,4 +1,4 @@
<!-- $PostgreSQL: pgsql/doc/src/sgml/catalogs.sgml,v 2.155 2007/06/20 19:24:05 neilc Exp $ -->
<!-- $PostgreSQL: pgsql/doc/src/sgml/catalogs.sgml,v 2.156 2007/09/03 00:39:11 tgl Exp $ -->
<!--
Documentation of the system catalogs, directed toward PostgreSQL developers
-->
@ -3635,6 +3635,13 @@
</entry>
</row>
<row>
<entry><structfield>proconfig</structfield></entry>
<entry><type>text[]</type></entry>
<entry></entry>
<entry>Function's local settings for run-time configuration variables</entry>
</row>
<row>
<entry><structfield>proacl</structfield></entry>
<entry><type>aclitem[]</type></entry>

43
doc/src/sgml/ref/alter_function.sgml
View File

@ -1,5 +1,5 @@
<!--
$PostgreSQL: pgsql/doc/src/sgml/ref/alter_function.sgml,v 1.13 2007/01/22 01:35:19 tgl Exp $
$PostgreSQL: pgsql/doc/src/sgml/ref/alter_function.sgml,v 1.14 2007/09/03 00:39:12 tgl Exp $
PostgreSQL documentation
-->
@ -36,6 +36,8 @@ where <replaceable class="PARAMETER">action</replaceable> is one of:
[ EXTERNAL ] SECURITY INVOKER | [ EXTERNAL ] SECURITY DEFINER
COST <replaceable class="parameter">execution_cost</replaceable>
ROWS <replaceable class="parameter">result_rows</replaceable>
SET <replaceable class="parameter">parameter</replaceable> { TO | = } { <replaceable class="parameter">value</replaceable> | DEFAULT }
RESET <replaceable class="parameter">parameter</replaceable>
</synopsis>
</refsynopsisdiv>
@ -212,6 +214,28 @@ where <replaceable class="PARAMETER">action</replaceable> is one of:
</listitem>
</varlistentry>
<varlistentry>
<term><replaceable>parameter</replaceable></term>
<term><replaceable>value</replaceable></term>
<listitem>
<para>
Add or change the assignment to be made to a configuration parameter
when the function is called. If
<replaceable>value</replaceable> is <literal>DEFAULT</literal>
or, equivalently, <literal>RESET</literal> is used, the function-local
setting is removed, so that the function executes with the value
present in its environment. Use <literal>RESET
ALL</literal> to clear all function-local settings.
</para>
<para>
See <xref linkend="sql-set" endterm="sql-set-title"> and
<xref linkend="runtime-config">
for more information about allowed parameter names and values.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>RESTRICT</literal></term>
@ -250,6 +274,22 @@ ALTER FUNCTION sqrt(integer) OWNER TO joe;
ALTER FUNCTION sqrt(integer) SET SCHEMA maths;
</programlisting>
</para>
<para>
To adjust the search path that is automatically set for a function:
<programlisting>
ALTER FUNCTION check_password(text) SET search_path = admin, pg_temp;
</programlisting>
</para>
<para>
To disable automatic setting of <varname>search_path</> for a function:
<programlisting>
ALTER FUNCTION check_password(text) RESET search_path;
</programlisting>
The function will now execute with whatever search path is used by its
caller.
</para>
</refsect1>
<refsect1>
@ -260,6 +300,7 @@ ALTER FUNCTION sqrt(integer) SET SCHEMA maths;
FUNCTION</> statement in the SQL standard. The standard allows more
properties of a function to be modified, but does not provide the
ability to rename a function, make a function a security definer,
attach configuration parameter values to a function,
or change the owner, schema, or volatility of a function. The standard also
requires the <literal>RESTRICT</> key word, which is optional in
<productname>PostgreSQL</>.

82
doc/src/sgml/ref/create_function.sgml
View File

@ -1,5 +1,5 @@
<!--
$PostgreSQL: pgsql/doc/src/sgml/ref/create_function.sgml,v 1.75 2007/04/23 16:52:53 neilc Exp $
$PostgreSQL: pgsql/doc/src/sgml/ref/create_function.sgml,v 1.76 2007/09/03 00:39:13 tgl Exp $
-->
<refentry id="SQL-CREATEFUNCTION">
@ -28,6 +28,7 @@ CREATE [ OR REPLACE ] FUNCTION
| [ EXTERNAL ] SECURITY INVOKER | [ EXTERNAL ] SECURITY DEFINER
| COST <replaceable class="parameter">execution_cost</replaceable>
| ROWS <replaceable class="parameter">result_rows</replaceable>
| SET <replaceable class="parameter">parameter</replaceable> { TO | = } { <replaceable class="parameter">value</replaceable> | DEFAULT }
| AS '<replaceable class="parameter">definition</replaceable>'
| AS '<replaceable class="parameter">obj_file</replaceable>', '<replaceable class="parameter">link_symbol</replaceable>'
} ...
@ -71,6 +72,8 @@ CREATE [ OR REPLACE ] FUNCTION
triggers, etc. that refer to the old function. Use
<command>CREATE OR REPLACE FUNCTION</command> to change a function
definition without breaking objects that refer to the function.
Also, <command>ALTER FUNCTION</> can be used to change most of the
auxiliary properties of an existing function.
</para>
<para>
@ -320,6 +323,24 @@ CREATE [ OR REPLACE ] FUNCTION
</listitem>
</varlistentry>
<varlistentry>
<term><replaceable>parameter</replaceable></term>
<term><replaceable>value</replaceable></term>
<listitem>
<para>
The <literal>SET</> clause causes the specified configuration
parameter to be set to the specified value when the function is
entered, and then restored to its prior value when the function exits.
</para>
<para>
See <xref linkend="sql-set" endterm="sql-set-title"> and
<xref linkend="runtime-config">
for more information about allowed parameter names and values.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><replaceable class="parameter">definition</replaceable></term>
@ -451,6 +472,18 @@ CREATE FUNCTION foo(int, out text) ...
be escaped by doubling them.
</para>
<para>
If any <literal>SET</> clauses are attached to a function, then
the effects of a <command>SET LOCAL</> command executed inside the
function are restricted to the function: the configuration parameter's
value is restored at function exit. This is true even for parameters
not mentioned in the <literal>SET</> clause(s). However, an ordinary
<command>SET</> command (without <literal>LOCAL</>) overrides the
<literal>SET</> clause, much as it would do for a previous <command>SET
LOCAL</> command: the effects of such a command will persist after
function exit, unless the current transaction is rolled back.
</para>
<para>
To be able to define a function, the user must have the
<literal>USAGE</literal> privilege on the language.
@ -530,28 +563,45 @@ SELECT * FROM dup(42);
CREATE FUNCTION check_password(uname TEXT, pass TEXT)
RETURNS BOOLEAN AS $$
DECLARE passed BOOLEAN;
old_path TEXT;
BEGIN
-- Save old search_path; notice we must qualify current_setting
-- to ensure we invoke the right function
old_path := pg_catalog.current_setting('search_path');
-- Set a secure search_path: trusted schemas, then 'pg_temp'.
-- We set is_local = true so that the old value will be restored
-- in event of an error before we reach the function end.
PERFORM pg_catalog.set_config('search_path', 'admin, pg_temp', true);
-- Do whatever secure work we came for.
SELECT (pwd = $2) INTO passed
FROM pwds
WHERE username = $1;
-- Restore caller's search_path
PERFORM pg_catalog.set_config('search_path', old_path, true);
RETURN passed;
END;
$$ LANGUAGE plpgsql SECURITY DEFINER;
$$ LANGUAGE plpgsql
SECURITY DEFINER
-- Set a secure search_path: trusted schema(s), then 'pg_temp'.
SET search_path = admin, pg_temp;
</programlisting>
<para>
Before <productname>PostgreSQL</productname> version 8.3, the
<literal>SET</> option was not available, and so older functions may
contain rather complicated logic to save, set, and restore
<varname>search_path</>. The <literal>SET</> option is far easier
to use for this purpose.
</para>
<para>
Another point to keep in mind is that by default, execute privilege
is granted to <literal>PUBLIC</> for newly created functions
(see <xref linkend="sql-grant" endterm="sql-grant-title"> for more
information). Frequently you will wish to restrict use of a security
definer function to only some users. To do that, you must revoke
the default <literal>PUBLIC</> privileges and then grant execute
privilege selectively. To avoid having a window where the new function
is accessible to all, create it and set the privileges within a single
transaction. For example:
</para>
<programlisting>
BEGIN;
CREATE FUNCTION check_password(uname TEXT, pass TEXT) ... SECURITY DEFINER;
REVOKE ALL ON FUNCTION check_password(uname TEXT, pass TEXT) FROM PUBLIC;
GRANT EXECUTE ON FUNCTION check_password(uname TEXT, pass TEXT) TO admins;
COMMIT;
</programlisting>
</refsect1>

24
src/backend/access/transam/xact.c
View File

@ -10,7 +10,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/access/transam/xact.c,v 1.246 2007/08/01 22:45:07 tgl Exp $
* $PostgreSQL: pgsql/src/backend/access/transam/xact.c,v 1.247 2007/09/03 00:39:13 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -117,7 +117,8 @@ typedef struct TransactionStateData
int savepointLevel; /* savepoint level */
TransState state; /* low-level state */
TBlockState blockState; /* high-level state */
int nestingLevel; /* nest depth */
int nestingLevel; /* transaction nesting depth */
int gucNestLevel; /* GUC context nesting depth */
MemoryContext curTransactionContext; /* my xact-lifetime context */
ResourceOwner curTransactionOwner; /* my query resources */
List *childXids; /* subcommitted child XIDs */
@ -141,7 +142,8 @@ static TransactionStateData TopTransactionStateData = {
TRANS_DEFAULT, /* transaction state */
TBLOCK_DEFAULT, /* transaction block state from the client
* perspective */
0, /* nesting level */
0, /* transaction nesting depth */
0, /* GUC context nesting depth */
NULL, /* cur transaction context */
NULL, /* cur transaction resource owner */
NIL, /* subcommitted child Xids */
@ -1499,6 +1501,7 @@ StartTransaction(void)
* initialize current transaction state fields
*/
s->nestingLevel = 1;
s->gucNestLevel = 1;
s->childXids = NIL;
/*
@ -1513,6 +1516,7 @@ StartTransaction(void)
/*
* initialize other subsystems for new transaction
*/
AtStart_GUC();
AtStart_Inval();
AtStart_Cache();
AfterTriggerBeginXact();
@ -1699,7 +1703,7 @@ CommitTransaction(void)
/* Check we've released all catcache entries */
AtEOXact_CatCache(true);
AtEOXact_GUC(true, false);
AtEOXact_GUC(true, 1);
AtEOXact_SPI(true);
AtEOXact_on_commit_actions(true);
AtEOXact_Namespace(true);
@ -1721,6 +1725,7 @@ CommitTransaction(void)
s->transactionId = InvalidTransactionId;
s->subTransactionId = InvalidSubTransactionId;
s->nestingLevel = 0;
s->gucNestLevel = 0;
s->childXids = NIL;
/*
@ -1920,7 +1925,7 @@ PrepareTransaction(void)
AtEOXact_CatCache(true);
/* PREPARE acts the same as COMMIT as far as GUC is concerned */
AtEOXact_GUC(true, false);
AtEOXact_GUC(true, 1);
AtEOXact_SPI(true);
AtEOXact_on_commit_actions(true);
AtEOXact_Namespace(true);
@ -1941,6 +1946,7 @@ PrepareTransaction(void)
s->transactionId = InvalidTransactionId;
s->subTransactionId = InvalidSubTransactionId;
s->nestingLevel = 0;
s->gucNestLevel = 0;
s->childXids = NIL;
/*
@ -2075,7 +2081,7 @@ AbortTransaction(void)
false, true);
AtEOXact_CatCache(false);
AtEOXact_GUC(false, false);
AtEOXact_GUC(false, 1);
AtEOXact_SPI(false);
AtEOXact_on_commit_actions(false);
AtEOXact_Namespace(false);
@ -2124,6 +2130,7 @@ CleanupTransaction(void)
s->transactionId = InvalidTransactionId;
s->subTransactionId = InvalidSubTransactionId;
s->nestingLevel = 0;
s->gucNestLevel = 0;
s->childXids = NIL;
/*
@ -3788,7 +3795,7 @@ CommitSubTransaction(void)
RESOURCE_RELEASE_AFTER_LOCKS,
true, false);
AtEOXact_GUC(true, true);
AtEOXact_GUC(true, s->gucNestLevel);
AtEOSubXact_SPI(true, s->subTransactionId);
AtEOSubXact_on_commit_actions(true, s->subTransactionId,
s->parent->subTransactionId);
@ -3901,7 +3908,7 @@ AbortSubTransaction(void)
RESOURCE_RELEASE_AFTER_LOCKS,
false, false);
AtEOXact_GUC(false, true);
AtEOXact_GUC(false, s->gucNestLevel);
AtEOSubXact_SPI(false, s->subTransactionId);
AtEOSubXact_on_commit_actions(false, s->subTransactionId,
s->parent->subTransactionId);
@ -4017,6 +4024,7 @@ PushTransaction(void)
s->subTransactionId = currentSubTransactionId;
s->parent = p;
s->nestingLevel = p->nestingLevel + 1;
s->gucNestLevel = NewGUCNestLevel();
s->savepointLevel = p->savepointLevel;
s->state = TRANS_DEFAULT;
s->blockState = TBLOCK_SUBBEGIN;

3
src/backend/catalog/pg_aggregate.c
View File

@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/catalog/pg_aggregate.c,v 1.86 2007/04/02 03:49:37 tgl Exp $
* $PostgreSQL: pgsql/src/backend/catalog/pg_aggregate.c,v 1.87 2007/09/03 00:39:14 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -212,6 +212,7 @@ AggregateCreate(const char *aggName,
PointerGetDatum(NULL), /* allParamTypes */
PointerGetDatum(NULL), /* parameterModes */
PointerGetDatum(NULL), /* parameterNames */
PointerGetDatum(NULL), /* proconfig */
1, /* procost */
0); /* prorows */

13
src/backend/catalog/pg_proc.c
View File

@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/catalog/pg_proc.c,v 1.145 2007/06/06 23:00:37 tgl Exp $
* $PostgreSQL: pgsql/src/backend/catalog/pg_proc.c,v 1.146 2007/09/03 00:39:14 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -49,9 +49,9 @@ static bool match_prosrc_to_literal(const char *prosrc, const char *literal,
/* ----------------------------------------------------------------
* ProcedureCreate
*
* Note: allParameterTypes, parameterModes, parameterNames are either arrays
* of the proper types or NULL. We declare them Datum, not "ArrayType *",
* to avoid importing array.h into pg_proc.h.
* Note: allParameterTypes, parameterModes, parameterNames, and proconfig
* are either arrays of the proper types or NULL. We declare them Datum,
* not "ArrayType *", to avoid importing array.h into pg_proc.h.
* ----------------------------------------------------------------
*/
Oid
@ -72,6 +72,7 @@ ProcedureCreate(const char *procedureName,
Datum allParameterTypes,
Datum parameterModes,
Datum parameterNames,
Datum proconfig,
float4 procost,
float4 prorows)
{
@ -251,6 +252,10 @@ ProcedureCreate(const char *procedureName,
CStringGetDatum(prosrc));
values[Anum_pg_proc_probin - 1] = DirectFunctionCall1(textin,
CStringGetDatum(probin));
if (proconfig != PointerGetDatum(NULL))
values[Anum_pg_proc_proconfig - 1] = proconfig;
else
nulls[Anum_pg_proc_proconfig - 1] = 'n';
/* start out with empty permissions */
nulls[Anum_pg_proc_proacl - 1] = 'n';

107
src/backend/commands/functioncmds.c
View File

@ -10,7 +10,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/commands/functioncmds.c,v 1.83 2007/04/02 03:49:37 tgl Exp $
* $PostgreSQL: pgsql/src/backend/commands/functioncmds.c,v 1.84 2007/09/03 00:39:15 tgl Exp $
*
* DESCRIPTION
* These routines take the parse tree and pick out the
@ -50,10 +50,14 @@
#include "utils/acl.h"
#include "utils/builtins.h"
#include "utils/fmgroids.h"
#include "utils/guc.h"
#include "utils/lsyscache.h"
#include "utils/syscache.h"
static void AlterFunctionOwner_internal(Relation rel, HeapTuple tup, Oid newOwnerId);
static void AlterFunctionOwner_internal(Relation rel, HeapTuple tup,
Oid newOwnerId);
/*
* Examine the RETURNS clause of the CREATE FUNCTION statement
@ -267,13 +271,15 @@ examine_parameter_list(List *parameters, Oid languageOid,
* FUNCTION and ALTER FUNCTION and return it via one of the out
* parameters. Returns true if the passed option was recognized. If
* the out parameter we were going to assign to points to non-NULL,
* raise a duplicate error.
* raise a duplicate-clause error. (We don't try to detect duplicate
* SET parameters though --- if you're redundant, the last one wins.)
*/
static bool
compute_common_attribute(DefElem *defel,
DefElem **volatility_item,
DefElem **strict_item,
DefElem **security_item,
List **set_items,
DefElem **cost_item,
DefElem **rows_item)
{
@ -298,6 +304,10 @@ compute_common_attribute(DefElem *defel,
*security_item = defel;
}
else if (strcmp(defel->defname, "set") == 0)
{
*set_items = lappend(*set_items, defel->arg);
}
else if (strcmp(defel->defname, "cost") == 0)
{
if (*cost_item)
@ -343,6 +353,51 @@ interpret_func_volatility(DefElem *defel)
}
}
/*
* Update a proconfig value according to a list of SET and RESET items.
*
* The input and result may be NULL to signify a null entry.
*/
static ArrayType *
update_proconfig_value(ArrayType *a, List *set_items)
{
ListCell *l;
foreach(l, set_items)
{
Node *sitem = (Node *) lfirst(l);
if (IsA(sitem, VariableSetStmt))
{
VariableSetStmt *sstmt = (VariableSetStmt *) sitem;
if (sstmt->args)
{
char *valuestr;
valuestr = flatten_set_variable_args(sstmt->name, sstmt->args);
a = GUCArrayAdd(a, sstmt->name, valuestr);
}
else /* SET TO DEFAULT */
a = GUCArrayDelete(a, sstmt->name);
}
else if (IsA(sitem, VariableResetStmt))
{
VariableResetStmt *rstmt = (VariableResetStmt *) sitem;
if (strcmp(rstmt->name, "all") == 0)
a = NULL; /* RESET ALL */
else
a = GUCArrayDelete(a, rstmt->name);
}
else
elog(ERROR, "unexpected node type: %d", nodeTag(sitem));
}
return a;
}
/*
* Dissect the list of options assembled in gram.y into function
* attributes.
@ -354,6 +409,7 @@ compute_attributes_sql_style(List *options,
char *volatility_p,
bool *strict_p,
bool *security_definer,
ArrayType **proconfig,
float4 *procost,
float4 *prorows)
{
@ -363,6 +419,7 @@ compute_attributes_sql_style(List *options,
DefElem *volatility_item = NULL;
DefElem *strict_item = NULL;
DefElem *security_item = NULL;
List *set_items = NIL;
DefElem *cost_item = NULL;
DefElem *rows_item = NULL;
@ -390,6 +447,7 @@ compute_attributes_sql_style(List *options,
&volatility_item,
&strict_item,
&security_item,
&set_items,
&cost_item,
&rows_item))
{
@ -429,6 +487,8 @@ compute_attributes_sql_style(List *options,
*strict_p = intVal(strict_item->arg);
if (security_item)
*security_definer = intVal(security_item->arg);
if (set_items)
*proconfig = update_proconfig_value(NULL, set_items);
if (cost_item)
{
*procost = defGetNumeric(cost_item);
@ -557,6 +617,7 @@ CreateFunction(CreateFunctionStmt *stmt)
bool isStrict,
security;
char volatility;
ArrayType *proconfig;
float4 procost;
float4 prorows;
HeapTuple languageTuple;
@ -577,6 +638,7 @@ CreateFunction(CreateFunctionStmt *stmt)
isStrict = false;
security = false;
volatility = PROVOLATILE_VOLATILE;
proconfig = NULL;
procost = -1; /* indicates not set */
prorows = -1; /* indicates not set */
@ -584,7 +646,7 @@ CreateFunction(CreateFunctionStmt *stmt)
compute_attributes_sql_style(stmt->options,
&as_clause, &language,
&volatility, &isStrict, &security,
&procost, &prorows);
&proconfig, &procost, &prorows);
/* Convert language name to canonical case */
languageName = case_translate_language_name(language);
@ -736,6 +798,7 @@ CreateFunction(CreateFunctionStmt *stmt)
PointerGetDatum(allParameterTypes),
PointerGetDatum(parameterModes),
PointerGetDatum(parameterNames),
PointerGetDatum(proconfig),
procost,
prorows);
}
@ -1084,6 +1147,7 @@ AlterFunction(AlterFunctionStmt *stmt)
DefElem *volatility_item = NULL;
DefElem *strict_item = NULL;
DefElem *security_def_item = NULL;
List *set_items = NIL;
DefElem *cost_item = NULL;
DefElem *rows_item = NULL;
@ -1121,6 +1185,7 @@ AlterFunction(AlterFunctionStmt *stmt)
&volatility_item,
&strict_item,
&security_def_item,
&set_items,
&cost_item,
&rows_item) == false)
elog(ERROR, "option \"%s\" not recognized", defel->defname);
@ -1152,6 +1217,40 @@ AlterFunction(AlterFunctionStmt *stmt)
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
errmsg("ROWS is not applicable when function does not return a set")));
}
if (set_items)
{
Datum datum;
bool isnull;
ArrayType *a;
Datum repl_val[Natts_pg_proc];
char repl_null[Natts_pg_proc];
char repl_repl[Natts_pg_proc];
/* extract existing proconfig setting */
datum = SysCacheGetAttr(PROCOID, tup, Anum_pg_proc_proconfig, &isnull);
a = isnull ? NULL : DatumGetArrayTypeP(datum);
/* update according to each SET or RESET item, left to right */
a = update_proconfig_value(a, set_items);
/* update the tuple */
memset(repl_repl, ' ', sizeof(repl_repl));
repl_repl[Anum_pg_proc_proconfig - 1] = 'r';
if (a == NULL)
{
repl_val[Anum_pg_proc_proconfig - 1] = (Datum) 0;
repl_null[Anum_pg_proc_proconfig - 1] = 'n';
}
else
{
repl_val[Anum_pg_proc_proconfig - 1] = PointerGetDatum(a);
repl_null[Anum_pg_proc_proconfig - 1] = ' ';
}
tup = heap_modifytuple(tup, RelationGetDescr(rel),
repl_val, repl_null, repl_repl);
}
/* Do the update */
simple_heap_update(rel, &tup->t_self, tup);

4
src/backend/commands/proclang.c
View File

@ -7,7 +7,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/commands/proclang.c,v 1.72 2007/03/26 16:58:38 tgl Exp $
* $PostgreSQL: pgsql/src/backend/commands/proclang.c,v 1.73 2007/09/03 00:39:15 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -142,6 +142,7 @@ CreateProceduralLanguage(CreatePLangStmt *stmt)
PointerGetDatum(NULL),
PointerGetDatum(NULL),
PointerGetDatum(NULL),
PointerGetDatum(NULL),
1,
0);
}
@ -174,6 +175,7 @@ CreateProceduralLanguage(CreatePLangStmt *stmt)
PointerGetDatum(NULL),
PointerGetDatum(NULL),
PointerGetDatum(NULL),
PointerGetDatum(NULL),
1,
0);
}

4
src/backend/optimizer/util/clauses.c
View File

@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/optimizer/util/clauses.c,v 1.247 2007/06/23 22:12:50 tgl Exp $
* $PostgreSQL: pgsql/src/backend/optimizer/util/clauses.c,v 1.248 2007/09/03 00:39:15 tgl Exp $
*
* HISTORY
* AUTHOR DATE MAJOR EVENT
@ -19,6 +19,7 @@
#include "postgres.h"
#include "access/heapam.h"
#include "catalog/pg_aggregate.h"
#include "catalog/pg_language.h"
#include "catalog/pg_operator.h"
@ -2923,6 +2924,7 @@ inline_function(Oid funcid, Oid result_type, List *args,
if (funcform->prolang != SQLlanguageId ||
funcform->prosecdef ||
funcform->proretset ||
!heap_attisnull(func_tuple, Anum_pg_proc_proconfig) ||
funcform->pronargs != list_length(args))
return NULL;

36
src/backend/parser/gram.y
View File

@ -11,7 +11,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/parser/gram.y,v 2.600 2007/08/22 05:13:50 tgl Exp $
* $PostgreSQL: pgsql/src/backend/parser/gram.y,v 2.601 2007/09/03 00:39:16 tgl Exp $
*
* HISTORY
* AUTHOR DATE MAJOR EVENT
@ -4270,6 +4270,16 @@ common_func_opt_item:
{
$$ = makeDefElem("rows", (Node *)$2);
}
| SET set_rest
{
/* we abuse the normal content of a DefElem here */
$$ = makeDefElem("set", (Node *)$2);
}
| VariableResetStmt
{
/* we abuse the normal content of a DefElem here */
$$ = makeDefElem("set", $1);
}
;
createfunc_opt_item:
@ -4564,13 +4574,13 @@ RenameStmt: ALTER AGGREGATE func_name aggr_args RENAME TO name
n->newname = $6;
$$ = (Node *)n;
}
| ALTER FUNCTION func_name func_args RENAME TO name
| ALTER FUNCTION function_with_argtypes RENAME TO name
{
RenameStmt *n = makeNode(RenameStmt);
n->renameType = OBJECT_FUNCTION;
n->object = $3;
n->objarg = extractArgTypes($4);
n->newname = $7;
n->object = $3->funcname;
n->objarg = $3->funcargs;
n->newname = $6;
$$ = (Node *)n;
}
| ALTER GROUP_P RoleId RENAME TO RoleId
@ -4755,13 +4765,13 @@ AlterObjectSchemaStmt:
n->newschema = $6;
$$ = (Node *)n;
}
| ALTER FUNCTION func_name func_args SET SCHEMA name
| ALTER FUNCTION function_with_argtypes SET SCHEMA name
{
AlterObjectSchemaStmt *n = makeNode(AlterObjectSchemaStmt);
n->objectType = OBJECT_FUNCTION;
n->object = $3;
n->objarg = extractArgTypes($4);
n->newschema = $7;
n->object = $3->funcname;
n->objarg = $3->funcargs;
n->newschema = $6;
$$ = (Node *)n;
}
| ALTER SEQUENCE relation_expr SET SCHEMA name
@ -4829,13 +4839,13 @@ AlterOwnerStmt: ALTER AGGREGATE func_name aggr_args OWNER TO RoleId
n->newowner = $6;
$$ = (Node *)n;
}
| ALTER FUNCTION func_name func_args OWNER TO RoleId
| ALTER FUNCTION function_with_argtypes OWNER TO RoleId
{
AlterOwnerStmt *n = makeNode(AlterOwnerStmt);
n->objectType = OBJECT_FUNCTION;
n->object = $3;
n->objarg = extractArgTypes($4);
n->newowner = $7;
n->object = $3->funcname;
n->objarg = $3->funcargs;
n->newowner = $6;
$$ = (Node *)n;
}
| ALTER opt_procedural LANGUAGE name OWNER TO RoleId

14
src/backend/utils/Gen_fmgrtab.sh
View File

@ -9,7 +9,7 @@
#
#
# IDENTIFICATION
# $PostgreSQL: pgsql/src/backend/utils/Gen_fmgrtab.sh,v 1.36 2007/06/05 21:31:06 tgl Exp $
# $PostgreSQL: pgsql/src/backend/utils/Gen_fmgrtab.sh,v 1.37 2007/09/03 00:39:17 tgl Exp $
#
#-------------------------------------------------------------------------
@ -134,12 +134,12 @@ cat > "$$-$OIDSFILE" <<FuNkYfMgRsTuFf
*/
FuNkYfMgRsTuFf
# Note assumption here that prosrc == $(NF-2).
# Note assumption here that prosrc == $(NF-3).
tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' < $SORTEDFILE | \
$AWK '
BEGIN { OFS = ""; }
{ if (seenit[$(NF-2)]++ == 0) print "#define F_", $(NF-2), " ", $1; }' >> "$$-$OIDSFILE"
{ if (seenit[$(NF-3)]++ == 0) print "#define F_", $(NF-3), " ", $1; }' >> "$$-$OIDSFILE"
if [ $? -ne 0 ]; then
cleanup
@ -184,9 +184,9 @@ cat > "$$-$TABLEFILE" <<FuNkYfMgRtAbStUfF
FuNkYfMgRtAbStUfF
# Note assumption here that prosrc == $(NF-2).
# Note assumption here that prosrc == $(NF-3).
$AWK '{ print "extern Datum", $(NF-2), "(PG_FUNCTION_ARGS);"; }' $SORTEDFILE >> "$$-$TABLEFILE"
$AWK '{ print "extern Datum", $(NF-3), "(PG_FUNCTION_ARGS);"; }' $SORTEDFILE >> "$$-$TABLEFILE"
if [ $? -ne 0 ]; then
cleanup
@ -204,7 +204,7 @@ FuNkYfMgRtAbStUfF
# may seem tedious, but avoid the temptation to write a quick x?y:z
# conditional expression instead. Not all awks have conditional expressions.
#
# Note assumptions here that prosrc == $(NF-2), pronargs == $13,
# Note assumptions here that prosrc == $(NF-3), pronargs == $13,
# proisstrict == $10, proretset == $11
$AWK 'BEGIN {
@ -212,7 +212,7 @@ $AWK 'BEGIN {
Bool["f"] = "false"
}
{ printf (" { %d, \"%s\", %d, %s, %s, %s },\n"), \
$1, $(NF-2), $13, Bool[$10], Bool[$11], $(NF-2)
$1, $(NF-3), $13, Bool[$10], Bool[$11], $(NF-3)
}' $SORTEDFILE >> "$$-$TABLEFILE"
if [ $? -ne 0 ]; then

91
src/backend/utils/fmgr/fmgr.c
View File

@ -8,13 +8,14 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/utils/fmgr/fmgr.c,v 1.108 2007/07/31 15:49:49 tgl Exp $
* $PostgreSQL: pgsql/src/backend/utils/fmgr/fmgr.c,v 1.109 2007/09/03 00:39:18 tgl Exp $
*
*-------------------------------------------------------------------------
*/
#include "postgres.h"
#include "access/heapam.h"
#include "access/tuptoaster.h"
#include "catalog/pg_language.h"
#include "catalog/pg_proc.h"
@ -23,9 +24,11 @@
#include "parser/parse_expr.h"
#include "utils/builtins.h"
#include "utils/fmgrtab.h"
#include "utils/guc.h"
#include "utils/lsyscache.h"
#include "utils/syscache.h"
/*
* Declaration for old-style function pointer type. This is now used only
* in fmgr_oldstyle() and is no longer exported.
@ -212,7 +215,13 @@ fmgr_info_cxt_security(Oid functionId, FmgrInfo *finfo, MemoryContext mcxt,
finfo->fn_strict = procedureStruct->proisstrict;
finfo->fn_retset = procedureStruct->proretset;
if (procedureStruct->prosecdef && !ignore_security)
/*
* If it has prosecdef set, or non-null proconfig, use
* fmgr_security_definer call handler.
*/
if (!ignore_security &&
(procedureStruct->prosecdef ||
!heap_attisnull(procedureTuple, Anum_pg_proc_proconfig)))
{
finfo->fn_addr = fmgr_security_definer;
finfo->fn_oid = functionId;
@ -826,34 +835,45 @@ fmgr_oldstyle(PG_FUNCTION_ARGS)
/*
* Support for security definer functions
* Support for security-definer and proconfig-using functions. We support
* both of these features using the same call handler, because they are
* often used together and it would be inefficient (as well as notationally
* messy) to have two levels of call handler involved.
*/
struct fmgr_security_definer_cache
{
FmgrInfo flinfo;
Oid userid;
FmgrInfo flinfo; /* lookup info for target function */
Oid userid; /* userid to set, or InvalidOid */
ArrayType *proconfig; /* GUC values to set, or NULL */
};
/*
* Function handler for security definer functions. We extract the
* OID of the actual function and do a fmgr lookup again. Then we
* look up the owner of the function and cache both the fmgr info and
* the owner ID. During the call we temporarily replace the flinfo
* with the cached/looked-up one, while keeping the outer fcinfo
* (which contains all the actual arguments, etc.) intact.
* Function handler for security-definer/proconfig functions. We extract the
* OID of the actual function and do a fmgr lookup again. Then we fetch the
* pg_proc row and copy the owner ID and proconfig fields. (All this info
* is cached for the duration of the current query.) To execute a call,
* we temporarily replace the flinfo with the cached/looked-up one, while
* keeping the outer fcinfo (which contains all the actual arguments, etc.)
* intact. This is not re-entrant, but then the fcinfo itself can't be used
* re-entrantly anyway.
*/
static Datum
fmgr_security_definer(PG_FUNCTION_ARGS)
{
Datum result;
FmgrInfo *save_flinfo;
struct fmgr_security_definer_cache *volatile fcache;
FmgrInfo *save_flinfo;
Oid save_userid;
HeapTuple tuple;
volatile int save_nestlevel;
if (!fcinfo->flinfo->fn_extra)
{
HeapTuple tuple;
Form_pg_proc procedureStruct;
Datum datum;
bool isnull;
MemoryContext oldcxt;
fcache = MemoryContextAllocZero(fcinfo->flinfo->fn_mcxt,
sizeof(*fcache));
@ -867,7 +887,20 @@ fmgr_security_definer(PG_FUNCTION_ARGS)
if (!HeapTupleIsValid(tuple))
elog(ERROR, "cache lookup failed for function %u",
fcinfo->flinfo->fn_oid);
fcache->userid = ((Form_pg_proc) GETSTRUCT(tuple))->proowner;
procedureStruct = (Form_pg_proc) GETSTRUCT(tuple);
if (procedureStruct->prosecdef)
fcache->userid = procedureStruct->proowner;
datum = SysCacheGetAttr(PROCOID, tuple, Anum_pg_proc_proconfig,
&isnull);
if (!isnull)
{
oldcxt = MemoryContextSwitchTo(fcinfo->flinfo->fn_mcxt);
fcache->proconfig = DatumGetArrayTypePCopy(datum);
MemoryContextSwitchTo(oldcxt);
}
ReleaseSysCache(tuple);
fcinfo->flinfo->fn_extra = fcache;
@ -876,25 +909,47 @@ fmgr_security_definer(PG_FUNCTION_ARGS)
fcache = fcinfo->flinfo->fn_extra;
save_flinfo = fcinfo->flinfo;
/* GetUserId is cheap enough that no harm in a wasted call */
save_userid = GetUserId();
if (fcache->proconfig) /* Need a new GUC nesting level */
save_nestlevel = NewGUCNestLevel();
else
save_nestlevel = 0; /* keep compiler quiet */
PG_TRY();
{
fcinfo->flinfo = &fcache->flinfo;
SetUserId(fcache->userid);
if (OidIsValid(fcache->userid))
SetUserId(fcache->userid);
if (fcache->proconfig)
{
/* The options are processed as if by SET LOCAL var = val */
ProcessGUCArray(fcache->proconfig,
(superuser() ? PGC_SUSET : PGC_USERSET),
PGC_S_SESSION,
true);
}
result = FunctionCallInvoke(fcinfo);
}
PG_CATCH();
{
fcinfo->flinfo = save_flinfo;
SetUserId(save_userid);
if (fcache->proconfig)
AtEOXact_GUC(false, save_nestlevel);
if (OidIsValid(fcache->userid))
SetUserId(save_userid);
PG_RE_THROW();
}
PG_END_TRY();
fcinfo->flinfo = save_flinfo;
SetUserId(save_userid);
if (fcache->proconfig)
AtEOXact_GUC(true, save_nestlevel);
if (OidIsValid(fcache->userid))
SetUserId(save_userid);
return result;
}

9
src/backend/utils/init/miscinit.c
View File

@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/utils/init/miscinit.c,v 1.162 2007/02/15 23:23:23 alvherre Exp $
* $PostgreSQL: pgsql/src/backend/utils/init/miscinit.c,v 1.163 2007/09/03 00:39:18 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -448,7 +448,12 @@ InitializeSessionUserId(const char *rolename)
{
ArrayType *a = DatumGetArrayTypeP(datum);
ProcessGUCArray(a, PGC_S_USER);
/*
* We process all the options at SUSET level. We assume that the
* right to insert an option into pg_authid was checked when it was
* inserted.
*/
ProcessGUCArray(a, PGC_SUSET, PGC_S_USER, false);
}
ReleaseSysCache(roleTup);

9
src/backend/utils/init/postinit.c
View File

@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/utils/init/postinit.c,v 1.176 2007/05/27 05:37:49 tgl Exp $
* $PostgreSQL: pgsql/src/backend/utils/init/postinit.c,v 1.177 2007/09/03 00:39:18 tgl Exp $
*
*
*-------------------------------------------------------------------------
@ -250,7 +250,12 @@ CheckMyDatabase(const char *name, bool am_superuser)
{
ArrayType *a = DatumGetArrayTypeP(datum);
ProcessGUCArray(a, PGC_S_DATABASE);
/*
* We process all the options at SUSET level. We assume that the
* right to insert an option into pg_database was checked when it
* was inserted.
*/
ProcessGUCArray(a, PGC_SUSET, PGC_S_DATABASE, false);
}
}

85
src/backend/utils/misc/guc.c
View File

@ -10,7 +10,7 @@
* Written by Peter Eisentraut <peter_e@gmx.net>.
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/utils/misc/guc.c,v 1.414 2007/08/21 01:11:19 tgl Exp $
* $PostgreSQL: pgsql/src/backend/utils/misc/guc.c,v 1.415 2007/09/03 00:39:19 tgl Exp $
*
*--------------------------------------------------------------------
*/
@ -2495,6 +2495,8 @@ static bool guc_dirty; /* TRUE if need to do commit/abort work */
static bool reporting_enabled; /* TRUE to enable GUC_REPORT */
static int GUCNestLevel = 0; /* 1 when in main transaction */
static int guc_var_compare(const void *a, const void *b);
static int guc_name_compare(const char *namea, const char *nameb);
@ -3388,17 +3390,16 @@ ResetAllOptions(void)
static void
push_old_value(struct config_generic * gconf)
{
int my_level = GetCurrentTransactionNestLevel();
GucStack *stack;
/* If we're not inside a transaction, do nothing */
if (my_level == 0)
if (GUCNestLevel == 0)
return;
for (;;)
{
/* Done if we already pushed it at this nesting depth */
if (gconf->stack && gconf->stack->nest_level >= my_level)
if (gconf->stack && gconf->stack->nest_level >= GUCNestLevel)
return;
/*
@ -3457,20 +3458,53 @@ push_old_value(struct config_generic * gconf)
}
/*
* Do GUC processing at transaction or subtransaction commit or abort.
* Do GUC processing at main transaction start.
*/
void
AtEOXact_GUC(bool isCommit, bool isSubXact)
AtStart_GUC(void)
{
/*
* The nest level should be 0 between transactions; if it isn't,
* somebody didn't call AtEOXact_GUC, or called it with the wrong
* nestLevel. We throw a warning but make no other effort to clean up.
*/
if (GUCNestLevel != 0)
elog(WARNING, "GUC nest level = %d at transaction start",
GUCNestLevel);
GUCNestLevel = 1;
}
/*
* Enter a new nesting level for GUC values. This is called at subtransaction
* start and when entering a function that has proconfig settings. NOTE that
* we must not risk error here, else subtransaction start will be unhappy.
*/
int
NewGUCNestLevel(void)
{
return ++GUCNestLevel;
}
/*
* Do GUC processing at transaction or subtransaction commit or abort, or
* when exiting a function that has proconfig settings. (The name is thus
* a bit of a misnomer; perhaps it should be ExitGUCNestLevel or some such.)
* During abort, we discard all GUC settings that were applied at nesting
* levels >= nestLevel. nestLevel == 1 corresponds to the main transaction.
*/
void
AtEOXact_GUC(bool isCommit, int nestLevel)
{
int my_level;
int i;
Assert(nestLevel > 0 && nestLevel <= GUCNestLevel);
/* Quick exit if nothing's changed in this transaction */
if (!guc_dirty)
{
GUCNestLevel = nestLevel - 1;
return;
my_level = GetCurrentTransactionNestLevel();
Assert(isSubXact ? (my_level > 1) : (my_level == 1));
}
for (i = 0; i < num_guc_variables; i++)
{
@ -3491,9 +3525,9 @@ AtEOXact_GUC(bool isCommit, bool isSubXact)
/* Assert that we stacked old value before changing it */
Assert(stack != NULL && (my_status & GUC_HAVE_STACK));
/* However, the last change may have been at an outer xact level */
if (stack->nest_level < my_level)
if (stack->nest_level < nestLevel)
continue;
Assert(stack->nest_level == my_level);
Assert(stack->nest_level == nestLevel);
/*
* We will pop the stack entry. Start by restoring outer xact status
@ -3677,7 +3711,7 @@ AtEOXact_GUC(bool isCommit, bool isSubXact)
set_string_field(conf, &stack->tentative_val.stringval,
NULL);
/* Don't store tentative value separately after commit */
if (!isSubXact)
if (nestLevel == 1)
set_string_field(conf, &conf->tentative_val, NULL);
break;
}
@ -3691,7 +3725,7 @@ AtEOXact_GUC(bool isCommit, bool isSubXact)
* If we're now out of all xact levels, forget TENTATIVE status bit;
* there's nothing tentative about the value anymore.
*/
if (!isSubXact)
if (nestLevel == 1)
{
Assert(gconf->stack == NULL);
gconf->status = 0;
@ -3708,8 +3742,11 @@ AtEOXact_GUC(bool isCommit, bool isSubXact)
* that all outer transaction levels will have stacked values to deal
* with.)
*/
if (!isSubXact)
if (nestLevel == 1)
guc_dirty = false;
/* Update nesting level */
GUCNestLevel = nestLevel - 1;
}
@ -6078,11 +6115,14 @@ ParseLongOption(const char *string, char **name, char **value)
/*
* Handle options fetched from pg_database.datconfig or pg_authid.rolconfig.
* Handle options fetched from pg_database.datconfig, pg_authid.rolconfig,
* pg_proc.proconfig, etc. Caller must specify proper context/source/local.
*
* The array parameter must be an array of TEXT (it must not be NULL).
*/
void
ProcessGUCArray(ArrayType *array, GucSource source)
ProcessGUCArray(ArrayType *array,
GucContext context, GucSource source, bool isLocal)
{
int i;
@ -6090,7 +6130,6 @@ ProcessGUCArray(ArrayType *array, GucSource source)
Assert(ARR_ELEMTYPE(array) == TEXTOID);
Assert(ARR_NDIM(array) == 1);
Assert(ARR_LBOUND(array)[0] == 1);
Assert(source == PGC_S_DATABASE || source == PGC_S_USER);
for (i = 1; i <= ARR_DIMS(array)[0]; i++)
{
@ -6117,17 +6156,13 @@ ProcessGUCArray(ArrayType *array, GucSource source)
{
ereport(WARNING,
(errcode(ERRCODE_SYNTAX_ERROR),
errmsg("could not parse setting for parameter \"%s\"", name)));
errmsg("could not parse setting for parameter \"%s\"",
name)));
free(name);
continue;
}
/*
* We process all these options at SUSET level. We assume that the
* right to insert an option into pg_database or pg_authid was checked
* when it was inserted.
*/
SetConfigOption(name, value, PGC_SUSET, source);
(void) set_config_option(name, value, context, source, isLocal, true);
free(name);
if (value)

55
src/bin/pg_dump/pg_dump.c
View File

@ -12,7 +12,7 @@
* by PostgreSQL
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/bin/pg_dump/pg_dump.c,v 1.471 2007/08/22 01:39:45 tgl Exp $
* $PostgreSQL: pgsql/src/bin/pg_dump/pg_dump.c,v 1.472 2007/09/03 00:39:19 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -6420,6 +6420,7 @@ dumpFunc(Archive *fout, FuncInfo *finfo)
char *provolatile;
char *proisstrict;
char *prosecdef;
char *proconfig;
char *procost;
char *prorows;
char *lanname;
@ -6428,6 +6429,9 @@ dumpFunc(Archive *fout, FuncInfo *finfo)
char **allargtypes = NULL;
char **argmodes = NULL;
char **argnames = NULL;
char **configitems = NULL;
int nconfigitems = 0;
int i;
/* Skip if not to be dumped */
if (!finfo->dobj.dump || dataOnly)
@ -6448,7 +6452,7 @@ dumpFunc(Archive *fout, FuncInfo *finfo)
"SELECT proretset, prosrc, probin, "
"proallargtypes, proargmodes, proargnames, "
"provolatile, proisstrict, prosecdef, "
"procost, prorows, "
"proconfig, procost, prorows, "
"(SELECT lanname FROM pg_catalog.pg_language WHERE oid = prolang) as lanname "
"FROM pg_catalog.pg_proc "
"WHERE oid = '%u'::pg_catalog.oid",
@ -6460,7 +6464,7 @@ dumpFunc(Archive *fout, FuncInfo *finfo)
"SELECT proretset, prosrc, probin, "
"proallargtypes, proargmodes, proargnames, "
"provolatile, proisstrict, prosecdef, "
"0 as procost, 0 as prorows, "
"null as proconfig, 0 as procost, 0 as prorows, "
"(SELECT lanname FROM pg_catalog.pg_language WHERE oid = prolang) as lanname "
"FROM pg_catalog.pg_proc "
"WHERE oid = '%u'::pg_catalog.oid",
@ -6474,7 +6478,7 @@ dumpFunc(Archive *fout, FuncInfo *finfo)
"null as proargmodes, "
"proargnames, "
"provolatile, proisstrict, prosecdef, "
"0 as procost, 0 as prorows, "
"null as proconfig, 0 as procost, 0 as prorows, "
"(SELECT lanname FROM pg_catalog.pg_language WHERE oid = prolang) as lanname "
"FROM pg_catalog.pg_proc "
"WHERE oid = '%u'::pg_catalog.oid",
@ -6488,7 +6492,7 @@ dumpFunc(Archive *fout, FuncInfo *finfo)
"null as proargmodes, "
"null as proargnames, "
"provolatile, proisstrict, prosecdef, "
"0 as procost, 0 as prorows, "
"null as proconfig, 0 as procost, 0 as prorows, "
"(SELECT lanname FROM pg_catalog.pg_language WHERE oid = prolang) as lanname "
"FROM pg_catalog.pg_proc "
"WHERE oid = '%u'::pg_catalog.oid",
@ -6504,7 +6508,7 @@ dumpFunc(Archive *fout, FuncInfo *finfo)
"case when proiscachable then 'i' else 'v' end as provolatile, "
"proisstrict, "
"'f'::boolean as prosecdef, "
"0 as procost, 0 as prorows, "
"null as proconfig, 0 as procost, 0 as prorows, "
"(SELECT lanname FROM pg_language WHERE oid = prolang) as lanname "
"FROM pg_proc "
"WHERE oid = '%u'::oid",
@ -6520,7 +6524,7 @@ dumpFunc(Archive *fout, FuncInfo *finfo)
"case when proiscachable then 'i' else 'v' end as provolatile, "
"'f'::boolean as proisstrict, "
"'f'::boolean as prosecdef, "
"0 as procost, 0 as prorows, "
"null as proconfig, 0 as procost, 0 as prorows, "
"(SELECT lanname FROM pg_language WHERE oid = prolang) as lanname "
"FROM pg_proc "
"WHERE oid = '%u'::oid",
@ -6548,6 +6552,7 @@ dumpFunc(Archive *fout, FuncInfo *finfo)
provolatile = PQgetvalue(res, 0, PQfnumber(res, "provolatile"));
proisstrict = PQgetvalue(res, 0, PQfnumber(res, "proisstrict"));
prosecdef = PQgetvalue(res, 0, PQfnumber(res, "prosecdef"));
proconfig = PQgetvalue(res, 0, PQfnumber(res, "proconfig"));
procost = PQgetvalue(res, 0, PQfnumber(res, "procost"));
prorows = PQgetvalue(res, 0, PQfnumber(res, "prorows"));
lanname = PQgetvalue(res, 0, PQfnumber(res, "lanname"));
@ -6634,6 +6639,18 @@ dumpFunc(Archive *fout, FuncInfo *finfo)
}
}
if (proconfig && *proconfig)
{
if (!parsePGArray(proconfig, &configitems, &nconfigitems))
{
write_msg(NULL, "WARNING: could not parse proconfig array\n");
if (configitems)
free(configitems);
configitems = NULL;
nconfigitems = 0;
}
}
funcsig = format_function_arguments(finfo, nallargs, allargtypes,
argmodes, argnames);
funcsig_tag = format_function_signature(finfo, false);
@ -6700,6 +6717,28 @@ dumpFunc(Archive *fout, FuncInfo *finfo)
strcmp(prorows, "0") != 0 && strcmp(prorows, "1000") != 0)
appendPQExpBuffer(q, " ROWS %s", prorows);
for (i = 0; i < nconfigitems; i++)
{
/* we feel free to scribble on configitems[] here */
char *configitem = configitems[i];
char *pos;
pos = strchr(configitem, '=');
if (pos == NULL)
continue;
*pos++ = '\0';
appendPQExpBuffer(q, "\n SET %s TO ", fmtId(configitem));
/*
* Some GUC variable names are 'LIST' type and hence must not be quoted.
*/
if (pg_strcasecmp(configitem, "DateStyle") == 0
|| pg_strcasecmp(configitem, "search_path") == 0)
appendPQExpBuffer(q, "%s", pos);
else
appendStringLiteralAH(q, pos, fout);
}
appendPQExpBuffer(q, ";\n");
ArchiveEntry(fout, finfo->dobj.catId, finfo->dobj.dumpId,
@ -6737,6 +6776,8 @@ dumpFunc(Archive *fout, FuncInfo *finfo)
free(argmodes);
if (argnames)
free(argnames);
if (configitems)
free(configitems);
}

4
src/include/catalog/catversion.h
View File

@ -37,7 +37,7 @@
* Portions Copyright (c) 1996-2007, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/catalog/catversion.h,v 1.419 2007/08/27 01:39:24 tgl Exp $
* $PostgreSQL: pgsql/src/include/catalog/catversion.h,v 1.420 2007/09/03 00:39:21 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -53,6 +53,6 @@
*/
/* yyyymmddN */
#define CATALOG_VERSION_NO 200708261
#define CATALOG_VERSION_NO 200709011
#endif

8
src/include/catalog/pg_attribute.h
View File

@ -8,7 +8,7 @@
* Portions Copyright (c) 1996-2007, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/catalog/pg_attribute.h,v 1.131 2007/05/11 17:57:13 tgl Exp $
* $PostgreSQL: pgsql/src/include/catalog/pg_attribute.h,v 1.132 2007/09/03 00:39:21 tgl Exp $
*
* NOTES
* the genbki.sh script reads this file and generates .bki
@ -307,7 +307,8 @@ DATA(insert ( 1247 tableoid 26 0 4 -7 0 -1 -1 t p i t f f t 0));
{ 1255, {"proargnames"}, 1009, -1, -1, 17, 1, -1, -1, false, 'x', 'i', false, false, false, true, 0 }, \
{ 1255, {"prosrc"}, 25, -1, -1, 18, 0, -1, -1, false, 'x', 'i', false, false, false, true, 0 }, \
{ 1255, {"probin"}, 17, -1, -1, 19, 0, -1, -1, false, 'x', 'i', false, false, false, true, 0 }, \
{ 1255, {"proacl"}, 1034, -1, -1, 20, 1, -1, -1, false, 'x', 'i', false, false, false, true, 0 }
{ 1255, {"proconfig"}, 1009, -1, -1, 20, 1, -1, -1, false, 'x', 'i', false, false, false, true, 0 }, \
{ 1255, {"proacl"}, 1034, -1, -1, 21, 1, -1, -1, false, 'x', 'i', false, false, false, true, 0 }
DATA(insert ( 1255 proname 19 -1 NAMEDATALEN 1 0 -1 -1 f p i t f f t 0));
DATA(insert ( 1255 pronamespace 26 -1 4 2 0 -1 -1 t p i t f f t 0));
@ -328,7 +329,8 @@ DATA(insert ( 1255 proargmodes 1002 -1 -1 16 1 -1 -1 f x i f f f t 0));
DATA(insert ( 1255 proargnames 1009 -1 -1 17 1 -1 -1 f x i f f f t 0));
DATA(insert ( 1255 prosrc 25 -1 -1 18 0 -1 -1 f x i f f f t 0));
DATA(insert ( 1255 probin 17 -1 -1 19 0 -1 -1 f x i f f f t 0));
DATA(insert ( 1255 proacl 1034 -1 -1 20 1 -1 -1 f x i f f f t 0));
DATA(insert ( 1255 proconfig 1009 -1 -1 20 1 -1 -1 f x i f f f t 0));
DATA(insert ( 1255 proacl 1034 -1 -1 21 1 -1 -1 f x i f f f t 0));
DATA(insert ( 1255 ctid 27 0 6 -1 0 -1 -1 f p s t f f t 0));
DATA(insert ( 1255 oid 26 0 4 -2 0 -1 -1 t p i t f f t 0));
DATA(insert ( 1255 xmin 28 0 4 -3 0 -1 -1 t p i t f f t 0));

4
src/include/catalog/pg_class.h
View File

@ -8,7 +8,7 @@
* Portions Copyright (c) 1996-2007, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/catalog/pg_class.h,v 1.101 2007/05/11 17:57:13 tgl Exp $
* $PostgreSQL: pgsql/src/include/catalog/pg_class.h,v 1.102 2007/09/03 00:39:21 tgl Exp $
*
* NOTES
* the genbki.sh script reads this file and generates .bki
@ -136,7 +136,7 @@ DATA(insert OID = 1247 ( pg_type PGNSP 71 PGUID 0 1247 0 0 0 0 0 f f r 26 0 0
DESCR("");
DATA(insert OID = 1249 ( pg_attribute PGNSP 75 PGUID 0 1249 0 0 0 0 0 f f r 17 0 0 0 0 0 f f f f 3 _null_ _null_ ));
DESCR("");
DATA(insert OID = 1255 ( pg_proc PGNSP 81 PGUID 0 1255 0 0 0 0 0 f f r 20 0 0 0 0 0 t f f f 3 _null_ _null_ ));
DATA(insert OID = 1255 ( pg_proc PGNSP 81 PGUID 0 1255 0 0 0 0 0 f f r 21 0 0 0 0 0 t f f f 3 _null_ _null_ ));
DESCR("");
DATA(insert OID = 1259 ( pg_class PGNSP 83 PGUID 0 1259 0 0 0 0 0 f f r 27 0 0 0 0 0 t f f f 3 _null_ _null_ ));
DESCR("");

4063
src/include/catalog/pg_proc.h
View File

File diff suppressed because it is too large Load Diff

9
src/include/utils/guc.h
View File

@ -7,7 +7,7 @@
* Copyright (c) 2000-2007, PostgreSQL Global Development Group
* Written by Peter Eisentraut <peter_e@gmx.net>.
*
* $PostgreSQL: pgsql/src/include/utils/guc.h,v 1.83 2007/07/25 12:22:54 mha Exp $
* $PostgreSQL: pgsql/src/include/utils/guc.h,v 1.84 2007/09/03 00:39:25 tgl Exp $
*--------------------------------------------------------------------
*/
#ifndef GUC_H
@ -188,7 +188,9 @@ extern void ProcessConfigFile(GucContext context);
extern void InitializeGUCOptions(void);
extern bool SelectConfigFiles(const char *userDoption, const char *progname);
extern void ResetAllOptions(void);
extern void AtEOXact_GUC(bool isCommit, bool isSubXact);
extern void AtStart_GUC(void);
extern int NewGUCNestLevel(void);
extern void AtEOXact_GUC(bool isCommit, int nestLevel);
extern void BeginReportingGUCOptions(void);
extern void ParseLongOption(const char *string, char **name, char **value);
extern bool set_config_option(const char *name, const char *value,
@ -205,7 +207,8 @@ extern void ResetPGVariable(const char *name, bool isTopLevel);
extern char *flatten_set_variable_args(const char *name, List *args);
extern void ProcessGUCArray(ArrayType *array, GucSource source);
extern void ProcessGUCArray(ArrayType *array,
GucContext context, GucSource source, bool isLocal);
extern ArrayType *GUCArrayAdd(ArrayType *array, const char *name, const char *value);
extern ArrayType *GUCArrayDelete(ArrayType *array, const char *name);

33
src/test/regress/expected/guc.out
View File

@ -525,3 +525,36 @@ SELECT current_user = 'temp_reset_user';
(1 row)
DROP ROLE temp_reset_user;
--
-- Tests for function-local GUC settings
--
set regex_flavor = advanced;
create function report_guc(text) returns text as
$$ select current_setting($1) $$ language sql
set regex_flavor = basic;
select report_guc('regex_flavor'), current_setting('regex_flavor');
report_guc | current_setting
------------+-----------------
basic | advanced
(1 row)
-- this should draw only a warning
alter function report_guc(text) set search_path = no_such_schema;
NOTICE: schema "no_such_schema" does not exist
-- with error occurring here
select report_guc('regex_flavor'), current_setting('regex_flavor');
ERROR: schema "no_such_schema" does not exist
alter function report_guc(text) reset search_path set regex_flavor = extended;
select report_guc('regex_flavor'), current_setting('regex_flavor');
report_guc | current_setting
------------+-----------------
extended | advanced
(1 row)
alter function report_guc(text) reset all;
select report_guc('regex_flavor'), current_setting('regex_flavor');
report_guc | current_setting
------------+-----------------
advanced | advanced
(1 row)

25
src/test/regress/sql/guc.sql
View File

@ -162,3 +162,28 @@ SELECT relname from pg_class where relname = 'tmp_foo';
SELECT current_user = 'temp_reset_user';
DROP ROLE temp_reset_user;
--
-- Tests for function-local GUC settings
--
set regex_flavor = advanced;
create function report_guc(text) returns text as
$$ select current_setting($1) $$ language sql
set regex_flavor = basic;
select report_guc('regex_flavor'), current_setting('regex_flavor');
-- this should draw only a warning
alter function report_guc(text) set search_path = no_such_schema;
-- with error occurring here
select report_guc('regex_flavor'), current_setting('regex_flavor');
alter function report_guc(text) reset search_path set regex_flavor = extended;
select report_guc('regex_flavor'), current_setting('regex_flavor');
alter function report_guc(text) reset all;
select report_guc('regex_flavor'), current_setting('regex_flavor');