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

Implement the collation columns of various information schema views

Browse Source 
Fill in the collation columns of the views attributes, columns,
domains, and element_types.  Also update collation information in
sql_implementation_info.
This commit is contained in:
Peter Eisentraut 2011-06-28 17:49:28 +03:00
parent 5594d14696
commit 615c384972
2 changed files with 132 additions and 54 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

108
doc/src/sgml/information_schema.sgml
View File

@ -379,6 +379,53 @@
</entry>
</row>
<row>
<entry><literal>character_set_catalog</literal></entry>
<entry><type>sql_identifier</type></entry>
<entry>Applies to a feature not available in <productname>PostgreSQL</></entry>
</row>
<row>
<entry><literal>character_set_schema</literal></entry>
<entry><type>sql_identifier</type></entry>
<entry>Applies to a feature not available in <productname>PostgreSQL</></entry>
</row>
<row>
<entry><literal>character_set_name</literal></entry>
<entry><type>sql_identifier</type></entry>
<entry>Applies to a feature not available in <productname>PostgreSQL</></entry>
</row>
<row>
<entry><literal>collation_catalog</literal></entry>
<entry><type>sql_identifier</type></entry>
<entry>
Name of the database containing the collation of the attribute
(always the current database), null if default or the data type
of the attribute is not collatable
</entry>
</row>
<row>
<entry><literal>collation_schema</literal></entry>
<entry><type>sql_identifier</type></entry>
<entry>
Name of the schema containing the collation of the attribute,
null if default or the data type of the attribute is not
collatable
</entry>
</row>
<row>
<entry><literal>collation_name</literal></entry>
<entry><type>sql_identifier</type></entry>
<entry>
Name of the collation of the attribute, null if default or the
data type of the attribute is not collatable
</entry>
</row>
<row>
<entry><literal>numeric_precision</literal></entry>
<entry><type>cardinal_number</type></entry>
@ -1321,19 +1368,29 @@
<row>
<entry><literal>collation_catalog</literal></entry>
<entry><type>sql_identifier</type></entry>
<entry>Applies to a feature not available in <productname>PostgreSQL</></entry>
<entry>
Name of the database containing the collation of the column
(always the current database), null if default or the data type
of the column is not collatable
</entry>
</row>
<row>
<entry><literal>collation_schema</literal></entry>
<entry><type>sql_identifier</type></entry>
<entry>Applies to a feature not available in <productname>PostgreSQL</></entry>
<entry>
Name of the schema containing the collation of the column, null
if default or the data type of the column is not collatable
</entry>
</row>
<row>
<entry><literal>collation_name</literal></entry>
<entry><type>sql_identifier</type></entry>
<entry>Applies to a feature not available in <productname>PostgreSQL</></entry>
<entry>
Name of the collation of the column, null if default or the
data type of the column is not collatable
</entry>
</row>
<row>
@ -1996,19 +2053,29 @@
<row>
<entry><literal>collation_catalog</literal></entry>
<entry><type>sql_identifier</type></entry>
<entry>Applies to a feature not available in <productname>PostgreSQL</></entry>
<entry>
Name of the database containing the collation of the domain
(always the current database), null if default or the data type
of the domain is not collatable
</entry>
</row>
<row>
<entry><literal>collation_schema</literal></entry>
<entry><type>sql_identifier</type></entry>
<entry>Applies to a feature not available in <productname>PostgreSQL</></entry>
<entry>
Name of the schema containing the collation of the domain, null
if default or the data type of the domain is not collatable
</entry>
</row>
<row>
<entry><literal>collation_name</literal></entry>
<entry><type>sql_identifier</type></entry>
<entry>Applies to a feature not available in <productname>PostgreSQL</></entry>
<entry>
Name of the collation of the column, null if default or the
data type of the domain is not collatable
</entry>
</row>
<row>
@ -2275,19 +2342,30 @@ ORDER BY c.ordinal_position;
<row>
<entry><literal>collation_catalog</literal></entry>
<entry><type>sql_identifier</type></entry>
<entry>Applies to a feature not available in <productname>PostgreSQL</></entry>
<entry>
Name of the database containing the collation of the element
type (always the current database), null if default or the data
type of the element is not collatable
</entry>
</row>
<row>
<entry><literal>collation_schema</literal></entry>
<entry><type>sql_identifier</type></entry>
<entry>Applies to a feature not available in <productname>PostgreSQL</></entry>
<entry>
Name of the schema containing the collation of the element
type, null if default or the data type of the element is not
collatable
</entry>
</row>
<row>
<entry><literal>collation_name</literal></entry>
<entry><type>sql_identifier</type></entry>
<entry>Applies to a feature not available in <productname>PostgreSQL</></entry>
<entry>
Name of the collation of the element type, null if default or
the data type of the element is not collatable
</entry>
</row>
<row>
@ -3025,19 +3103,19 @@ ORDER BY c.ordinal_position;
<row>
<entry><literal>collation_catalog</literal></entry>
<entry><type>sql_identifier</type></entry>
<entry>Applies to a feature not available in <productname>PostgreSQL</></entry>
<entry>Always null, since this information is not applied to parameter data types in <productname>PostgreSQL</></entry>
</row>
<row>
<entry><literal>collation_schema</literal></entry>
<entry><type>sql_identifier</type></entry>
<entry>Applies to a feature not available in <productname>PostgreSQL</></entry>
<entry>Always null, since this information is not applied to parameter data types in <productname>PostgreSQL</></entry>
</row>
<row>
<entry><literal>collation_name</literal></entry>
<entry><type>sql_identifier</type></entry>
<entry>Applies to a feature not available in <productname>PostgreSQL</></entry>
<entry>Always null, since this information is not applied to parameter data types in <productname>PostgreSQL</></entry>
</row>
<row>
@ -3912,19 +3990,19 @@ ORDER BY c.ordinal_position;
<row>
<entry><literal>collation_catalog</literal></entry>
<entry><type>sql_identifier</type></entry>
<entry>Applies to a feature not available in <productname>PostgreSQL</></entry>
<entry>Always null, since this information is not applied to return data types in <productname>PostgreSQL</></entry>
</row>
<row>
<entry><literal>collation_schema</literal></entry>
<entry><type>sql_identifier</type></entry>
<entry>Applies to a feature not available in <productname>PostgreSQL</></entry>
<entry>Always null, since this information is not applied to return data types in <productname>PostgreSQL</></entry>
</row>
<row>
<entry><literal>collation_name</literal></entry>
<entry><type>sql_identifier</type></entry>
<entry>Applies to a feature not available in <productname>PostgreSQL</></entry>
<entry>Always null, since this information is not applied to return data types in <productname>PostgreSQL</></entry>
</row>
<row>

78
src/backend/catalog/information_schema.sql
View File

@ -297,9 +297,9 @@ CREATE VIEW attributes AS
CAST(null AS sql_identifier) AS character_set_schema,
CAST(null AS sql_identifier) AS character_set_name,
CAST(null AS sql_identifier) AS collation_catalog,
CAST(null AS sql_identifier) AS collation_schema,
CAST(null AS sql_identifier) AS collation_name,
CAST(CASE WHEN nco.nspname IS NOT NULL THEN current_database() END AS sql_identifier) AS collation_catalog,
CAST(nco.nspname AS sql_identifier) AS collation_schema,
CAST(co.collname AS sql_identifier) AS collation_name,
CAST(
_pg_numeric_precision(_pg_truetypid(a, t), _pg_truetypmod(a, t))
@ -336,14 +336,13 @@ CREATE VIEW attributes AS
CAST(a.attnum AS sql_identifier) AS dtd_identifier,
CAST('NO' AS yes_or_no) AS is_derived_reference_attribute
FROM (pg_attribute a LEFT JOIN pg_attrdef ad ON attrelid = adrelid AND attnum = adnum),
pg_class c, pg_namespace nc,
(pg_type t JOIN pg_namespace nt ON (t.typnamespace = nt.oid))
FROM (pg_attribute a LEFT JOIN pg_attrdef ad ON attrelid = adrelid AND attnum = adnum)
JOIN (pg_class c JOIN pg_namespace nc ON (c.relnamespace = nc.oid)) ON a.attrelid = c.oid
JOIN (pg_type t JOIN pg_namespace nt ON (t.typnamespace = nt.oid)) ON a.atttypid = t.oid
LEFT JOIN (pg_collation co JOIN pg_namespace nco ON (co.collnamespace = nco.oid))
ON a.attcollation = co.oid AND (nco.nspname, co.collname) <> ('pg_catalog', 'default')
WHERE a.attrelid = c.oid
AND a.atttypid = t.oid
AND nc.oid = c.relnamespace
AND a.attnum > 0 AND NOT a.attisdropped
WHERE a.attnum > 0 AND NOT a.attisdropped
AND c.relkind in ('c');
GRANT SELECT ON attributes TO PUBLIC;
@ -678,9 +677,9 @@ CREATE VIEW columns AS
CAST(null AS sql_identifier) AS character_set_schema,
CAST(null AS sql_identifier) AS character_set_name,
CAST(null AS sql_identifier) AS collation_catalog,
CAST(null AS sql_identifier) AS collation_schema,
CAST(null AS sql_identifier) AS collation_name,
CAST(CASE WHEN nco.nspname IS NOT NULL THEN current_database() END AS sql_identifier) AS collation_catalog,
CAST(nco.nspname AS sql_identifier) AS collation_schema,
CAST(co.collname AS sql_identifier) AS collation_name,
CAST(CASE WHEN t.typtype = 'd' THEN current_database() ELSE null END
AS sql_identifier) AS domain_catalog,
@ -718,16 +717,15 @@ CREATE VIEW columns AS
AND EXISTS (SELECT 1 FROM pg_rewrite WHERE ev_class = c.oid AND ev_type = '4' AND is_instead))
THEN 'YES' ELSE 'NO' END AS yes_or_no) AS is_updatable
FROM (pg_attribute a LEFT JOIN pg_attrdef ad ON attrelid = adrelid AND attnum = adnum),
pg_class c, pg_namespace nc,
(pg_type t JOIN pg_namespace nt ON (t.typnamespace = nt.oid))
LEFT JOIN (pg_type bt JOIN pg_namespace nbt ON (bt.typnamespace = nbt.oid))
FROM (pg_attribute a LEFT JOIN pg_attrdef ad ON attrelid = adrelid AND attnum = adnum)
JOIN (pg_class c JOIN pg_namespace nc ON (c.relnamespace = nc.oid)) ON a.attrelid = c.oid
JOIN (pg_type t JOIN pg_namespace nt ON (t.typnamespace = nt.oid)) ON a.atttypid = t.oid
LEFT JOIN (pg_type bt JOIN pg_namespace nbt ON (bt.typnamespace = nbt.oid))
ON (t.typtype = 'd' AND t.typbasetype = bt.oid)
LEFT JOIN (pg_collation co JOIN pg_namespace nco ON (co.collnamespace = nco.oid))
ON a.attcollation = co.oid AND (nco.nspname, co.collname) <> ('pg_catalog', 'default')
WHERE a.attrelid = c.oid
AND a.atttypid = t.oid
AND nc.oid = c.relnamespace
AND (NOT pg_is_other_temp_schema(nc.oid))
WHERE (NOT pg_is_other_temp_schema(nc.oid))
AND a.attnum > 0 AND NOT a.attisdropped AND c.relkind in ('r', 'v', 'f')
@ -914,9 +912,9 @@ CREATE VIEW domains AS
CAST(null AS sql_identifier) AS character_set_schema,
CAST(null AS sql_identifier) AS character_set_name,
CAST(null AS sql_identifier) AS collation_catalog,
CAST(null AS sql_identifier) AS collation_schema,
CAST(null AS sql_identifier) AS collation_name,
CAST(CASE WHEN nco.nspname IS NOT NULL THEN current_database() END AS sql_identifier) AS collation_catalog,
CAST(nco.nspname AS sql_identifier) AS collation_schema,
CAST(co.collname AS sql_identifier) AS collation_name,
CAST(
_pg_numeric_precision(t.typbasetype, t.typtypmod)
@ -954,13 +952,13 @@ CREATE VIEW domains AS
CAST(null AS cardinal_number) AS maximum_cardinality,
CAST(1 AS sql_identifier) AS dtd_identifier
FROM pg_type t, pg_namespace nt,
pg_type bt, pg_namespace nbt
FROM (pg_type t JOIN pg_namespace nt ON t.typnamespace = nt.oid)
JOIN (pg_type bt JOIN pg_namespace nbt ON bt.typnamespace = nbt.oid)
ON (t.typbasetype = bt.oid AND t.typtype = 'd')
LEFT JOIN (pg_collation co JOIN pg_namespace nco ON (co.collnamespace = nco.oid))
ON t.typcollation = co.oid AND (nco.nspname, co.collname) <> ('pg_catalog', 'default')
WHERE t.typnamespace = nt.oid
AND t.typbasetype = bt.oid
AND bt.typnamespace = nbt.oid
AND t.typtype = 'd';
;
GRANT SELECT ON domains TO PUBLIC;
@ -1515,7 +1513,7 @@ CREATE TABLE sql_implementation_info (
) WITHOUT OIDS;
INSERT INTO sql_implementation_info VALUES ('10003', 'CATALOG NAME', NULL, 'Y', NULL);
INSERT INTO sql_implementation_info VALUES ('10004', 'COLLATING SEQUENCE', NULL, '', 'not supported');
INSERT INTO sql_implementation_info VALUES ('10004', 'COLLATING SEQUENCE', NULL, (SELECT default_collate_name FROM character_sets), NULL);
INSERT INTO sql_implementation_info VALUES ('23', 'CURSOR COMMIT BEHAVIOR', 1, NULL, 'close cursors and retain prepared statements');
INSERT INTO sql_implementation_info VALUES ('2', 'DATA SOURCE NAME', NULL, '', NULL);
INSERT INTO sql_implementation_info VALUES ('17', 'DBMS NAME', NULL, (select trim(trailing ' ' from substring(version() from '^[^0-9]*'))), NULL);
@ -2442,9 +2440,9 @@ CREATE VIEW element_types AS
CAST(null AS sql_identifier) AS character_set_catalog,
CAST(null AS sql_identifier) AS character_set_schema,
CAST(null AS sql_identifier) AS character_set_name,
CAST(null AS sql_identifier) AS collation_catalog,
CAST(null AS sql_identifier) AS collation_schema,
CAST(null AS sql_identifier) AS collation_name,
CAST(CASE WHEN nco.nspname IS NOT NULL THEN current_database() END AS sql_identifier) AS collation_catalog,
CAST(nco.nspname AS sql_identifier) AS collation_schema,
CAST(co.collname AS sql_identifier) AS collation_name,
CAST(null AS cardinal_number) AS numeric_precision,
CAST(null AS cardinal_number) AS numeric_precision_radix,
CAST(null AS cardinal_number) AS numeric_scale,
@ -2470,7 +2468,7 @@ CREATE VIEW element_types AS
/* columns, attributes */
SELECT c.relnamespace, CAST(c.relname AS sql_identifier),
CASE WHEN c.relkind = 'c' THEN 'USER-DEFINED TYPE'::text ELSE 'TABLE'::text END,
a.attnum, a.atttypid
a.attnum, a.atttypid, a.attcollation
FROM pg_class c, pg_attribute a
WHERE c.oid = a.attrelid
AND c.relkind IN ('r', 'v', 'f', 'c')
@ -2480,7 +2478,7 @@ CREATE VIEW element_types AS
/* domains */
SELECT t.typnamespace, CAST(t.typname AS sql_identifier),
'DOMAIN'::text, 1, t.typbasetype
'DOMAIN'::text, 1, t.typbasetype, t.typcollation
FROM pg_type t
WHERE t.typtype = 'd'
@ -2488,7 +2486,7 @@ CREATE VIEW element_types AS
/* parameters */
SELECT pronamespace, CAST(proname || '_' || CAST(oid AS text) AS sql_identifier),
'ROUTINE'::text, (ss.x).n, (ss.x).x
'ROUTINE'::text, (ss.x).n, (ss.x).x, 0
FROM (SELECT p.pronamespace, p.proname, p.oid,
_pg_expandarray(coalesce(p.proallargtypes, p.proargtypes::oid[])) AS x
FROM pg_proc p) AS ss
@ -2497,10 +2495,12 @@ CREATE VIEW element_types AS
/* result types */
SELECT p.pronamespace, CAST(p.proname || '_' || CAST(p.oid AS text) AS sql_identifier),
'ROUTINE'::text, 0, p.prorettype
'ROUTINE'::text, 0, p.prorettype, 0
FROM pg_proc p
) AS x (objschema, objname, objtype, objdtdid, objtypeid)
) AS x (objschema, objname, objtype, objdtdid, objtypeid, objcollation)
LEFT JOIN (pg_collation co JOIN pg_namespace nco ON (co.collnamespace = nco.oid))
ON x.objcollation = co.oid AND (nco.nspname, co.collname) <> ('pg_catalog', 'default')
WHERE n.oid = x.objschema
AND at.oid = x.objtypeid