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Further work on information_schema. _pg_keyissubset() wasn't quite

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fully search-path-proof yet; also, element_types view did not work for
parameters and result types of functions, because it didn't generate
the object_name for the function the same way the data_type_privileges
view does.  While at it, centralize dependencies on INDEX_MAX_KEYS/
FUNC_MAX_ARGS into a function returning setof int, so that it will be
easier to fix information_schema for nonstandard values of these
parameters.
This commit is contained in:
Tom Lane 2003-10-18 19:06:10 +00:00
parent eda80f09ff
commit e341cdb085
1 changed files with 62 additions and 51 deletions
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113
src/backend/catalog/information_schema.sql
View File

@ -4,7 +4,7 @@
*
* Copyright 2003, PostgreSQL Global Development Group
*
* $Id: information_schema.sql,v 1.14 2003/10/18 12:53:35 petere Exp $
* $Id: information_schema.sql,v 1.15 2003/10/18 19:06:10 tgl Exp $
*/
/*
@ -178,7 +178,10 @@ CREATE VIEW column_privileges AS
UNION ALL
SELECT 0, 0, 'PUBLIC'
) AS grantee (usesysid, grosysid, name),
(SELECT 'SELECT' UNION ALL SELECT 'INSERT' UNION ALL SELECT 'UPDATE' UNION ALL SELECT 'REFERENCES') AS pr (type)
(SELECT 'SELECT' UNION ALL
SELECT 'INSERT' UNION ALL
SELECT 'UPDATE' UNION ALL
SELECT 'REFERENCES') AS pr (type)
WHERE a.attrelid = c.oid
AND c.relnamespace = nc.oid
@ -389,6 +392,22 @@ GRANT SELECT ON columns TO PUBLIC;
* CONSTRAINT_COLUMN_USAGE view
*/
/* This returns the integers from 1 to INDEX_MAX_KEYS/FUNC_MAX_ARGS */
CREATE FUNCTION _pg_keypositions() RETURNS SETOF integer
LANGUAGE sql
IMMUTABLE
AS 'select 1 union all select 2 union all select 3 union all
select 4 union all select 5 union all select 6 union all
select 7 union all select 8 union all select 9 union all
select 10 union all select 11 union all select 12 union all
select 13 union all select 14 union all select 15 union all
select 16 union all select 17 union all select 18 union all
select 19 union all select 20 union all select 21 union all
select 22 union all select 23 union all select 24 union all
select 25 union all select 26 union all select 27 union all
select 28 union all select 29 union all select 30 union all
select 31 union all select 32';
CREATE VIEW constraint_column_usage AS
SELECT CAST(current_database() AS sql_identifier) AS table_catalog,
CAST(tblschema AS sql_identifier) AS table_schema,
@ -419,14 +438,8 @@ CREATE VIEW constraint_column_usage AS
/* unique/primary key/foreign key constraints */
SELECT nr.nspname, r.relname, r.relowner, a.attname, nc.nspname, c.conname
FROM pg_namespace nr, pg_class r, pg_attribute a, pg_namespace nc, pg_constraint c,
(select 1 union all select 2 union all select 3 union all select 4 union all select 5 union all
select 6 union all select 7 union all select 8 union all select 9 union all select 10 union all
select 11 union all select 12 union all select 13 union all select 14 union all select 15 union all
select 16 union all select 17 union all select 18 union all select 19 union all select 20 union all
select 21 union all select 22 union all select 23 union all select 24 union all select 25 union all
select 26 union all select 27 union all select 28 union all select 29 union all select 30 union all
select 31 union all select 32) AS pos(n)
FROM pg_namespace nr, pg_class r, pg_attribute a, pg_namespace nc,
pg_constraint c, _pg_keypositions() AS pos(n)
WHERE nr.oid = r.relnamespace
AND r.oid = a.attrelid
AND r.oid = c.conrelid
@ -659,16 +672,8 @@ CREATE VIEW key_column_usage AS
CAST(a.attname AS sql_identifier) AS column_name,
CAST(pos.n AS cardinal_number) AS ordinal_position
FROM pg_namespace nr, pg_class r, pg_attribute a, pg_namespace nc, pg_constraint c,
pg_user u,
(select 1 union all select 2 union all select 3 union all select 4 union all select 5 union all
select 6 union all select 7 union all select 8 union all select 9 union all select 10 union all
select 11 union all select 12 union all select 13 union all select 14 union all select 15 union all
select 16 union all select 17 union all select 18 union all select 19 union all select 20 union all
select 21 union all select 22 union all select 23 union all select 24 union all select 25 union all
select 26 union all select 27 union all select 28 union all select 29 union all select 30 union all
select 31 union all select 32) AS pos(n)
FROM pg_namespace nr, pg_class r, pg_attribute a, pg_namespace nc,
pg_constraint c, pg_user u, _pg_keypositions() AS pos(n)
WHERE nr.oid = r.relnamespace
AND r.oid = a.attrelid
AND r.oid = c.conrelid
@ -693,7 +698,7 @@ CREATE VIEW parameters AS
SELECT CAST(current_database() AS sql_identifier) AS specific_catalog,
CAST(n.nspname AS sql_identifier) AS specific_schema,
CAST(p.proname || '_' || CAST(p.oid AS text) AS sql_identifier) AS specific_name,
CAST(n + 1 AS cardinal_number) AS ordinal_position,
CAST(pos.n AS cardinal_number) AS ordinal_position,
CAST('IN' AS character_data) AS parameter_mode,
CAST('NO' AS character_data) AS is_result,
CAST('NO' AS character_data) AS as_locator,
@ -724,19 +729,13 @@ CREATE VIEW parameters AS
CAST(null AS sql_identifier) AS scope_schema,
CAST(null AS sql_identifier) AS scope_name,
CAST(null AS cardinal_number) AS maximum_cardinality,
CAST(n + 1 AS sql_identifier) AS dtd_identifier
CAST(pos.n AS sql_identifier) AS dtd_identifier
FROM pg_namespace n, pg_proc p, pg_type t, pg_namespace nt, pg_user u,
(select 0 union all select 1 union all select 2 union all select 3 union all select 4 union all
select 5 union all select 6 union all select 7 union all select 8 union all select 9 union all
select 10 union all select 11 union all select 12 union all select 13 union all select 14 union all
select 15 union all select 16 union all select 17 union all select 18 union all select 19 union all
select 20 union all select 21 union all select 22 union all select 23 union all select 24 union all
select 25 union all select 26 union all select 27 union all select 28 union all select 29 union all
select 30 union all select 31) AS pos(n)
_pg_keypositions() AS pos(n)
WHERE n.oid = p.pronamespace AND p.pronargs > pos.n
AND p.proargtypes[n] = t.oid AND t.typnamespace = nt.oid
WHERE n.oid = p.pronamespace AND p.pronargs >= pos.n
AND p.proargtypes[pos.n-1] = t.oid AND t.typnamespace = nt.oid
AND p.proowner = u.usesysid
AND (u.usename = current_user OR has_function_privilege(p.oid, 'EXECUTE'));
@ -752,7 +751,7 @@ CREATE FUNCTION _pg_keyissubset(smallint[], smallint[]) RETURNS boolean
LANGUAGE sql
IMMUTABLE
RETURNS NULL ON NULL INPUT
AS 'select $1[1] is null or ($1[1] = any ($2) and coalesce(information_schema._pg_keyissubset($1[2:array_upper($1,1)], $2), true))';
AS 'select $1[1] is null or ($1[1] = any ($2) and coalesce(information_schema._pg_keyissubset($1[2:pg_catalog.array_upper($1,1)], $2), true))';
CREATE FUNCTION _pg_keysequal(smallint[], smallint[]) RETURNS boolean
LANGUAGE sql
@ -831,7 +830,10 @@ CREATE VIEW role_column_grants AS
pg_namespace nc,
pg_user u_grantor,
pg_group g_grantee,
(SELECT 'SELECT' UNION ALL SELECT 'INSERT' UNION ALL SELECT 'UPDATE' UNION ALL SELECT 'REFERENCES') AS pr (type)
(SELECT 'SELECT' UNION ALL
SELECT 'INSERT' UNION ALL
SELECT 'UPDATE' UNION ALL
SELECT 'REFERENCES') AS pr (type)
WHERE a.attrelid = c.oid
AND c.relnamespace = nc.oid
@ -900,8 +902,13 @@ CREATE VIEW role_table_grants AS
pg_namespace nc,
pg_user u_grantor,
pg_group g_grantee,
(SELECT 'SELECT' UNION ALL SELECT 'DELETE' UNION ALL SELECT 'INSERT' UNION ALL SELECT 'UPDATE'
UNION ALL SELECT 'REFERENCES' UNION ALL SELECT 'RULE' UNION ALL SELECT 'TRIGGER') AS pr (type)
(SELECT 'SELECT' UNION ALL
SELECT 'DELETE' UNION ALL
SELECT 'INSERT' UNION ALL
SELECT 'UPDATE' UNION ALL
SELECT 'REFERENCES' UNION ALL
SELECT 'RULE' UNION ALL
SELECT 'TRIGGER') AS pr (type)
WHERE c.relnamespace = nc.oid
AND c.relkind IN ('r', 'v')
@ -1310,8 +1317,13 @@ CREATE VIEW table_privileges AS
UNION ALL
SELECT 0, 0, 'PUBLIC'
) AS grantee (usesysid, grosysid, name),
(SELECT 'SELECT' UNION ALL SELECT 'DELETE' UNION ALL SELECT 'INSERT' UNION ALL SELECT 'UPDATE'
UNION ALL SELECT 'REFERENCES' UNION ALL SELECT 'RULE' UNION ALL SELECT 'TRIGGER') AS pr (type)
(SELECT 'SELECT' UNION ALL
SELECT 'DELETE' UNION ALL
SELECT 'INSERT' UNION ALL
SELECT 'UPDATE' UNION ALL
SELECT 'REFERENCES' UNION ALL
SELECT 'RULE' UNION ALL
SELECT 'TRIGGER') AS pr (type)
WHERE c.relnamespace = nc.oid
AND c.relkind IN ('r', 'v')
@ -1414,7 +1426,9 @@ CREATE VIEW triggers AS
CAST(null AS sql_identifier) AS condition_reference_new_table
FROM pg_namespace n, pg_class c, pg_trigger t, pg_user u,
(SELECT 4, 'INSERT' UNION ALL SELECT 8, 'DELETE' UNION ALL SELECT 16, 'UPDATE') AS em (num, text)
(SELECT 4, 'INSERT' UNION ALL
SELECT 8, 'DELETE' UNION ALL
SELECT 16, 'UPDATE') AS em (num, text)
WHERE n.oid = c.relnamespace
AND c.oid = t.tgrelid
@ -1640,7 +1654,8 @@ CREATE VIEW element_types AS
FROM pg_namespace n, pg_type at, pg_namespace nbt, pg_type bt,
(
/* columns */
SELECT c.relnamespace, c.relname, 'TABLE'::text, a.attnum, a.atttypid
SELECT c.relnamespace, CAST(c.relname AS sql_identifier),
'TABLE'::text, a.attnum, a.atttypid
FROM pg_class c, pg_attribute a
WHERE c.oid = a.attrelid
AND c.relkind IN ('r', 'v')
@ -1649,28 +1664,24 @@ CREATE VIEW element_types AS
UNION ALL
/* domains */
SELECT t.typnamespace, t.typname, 'DOMAIN'::text, 1, t.typbasetype
SELECT t.typnamespace, CAST(t.typname AS sql_identifier),
'DOMAIN'::text, 1, t.typbasetype
FROM pg_type t
WHERE t.typtype = 'd'
UNION ALL
/* parameters */
SELECT p.pronamespace, p.proname, 'ROUTINE'::text, pos.n + 1, p.proargtypes[n]
FROM pg_proc p,
(select 0 union all select 1 union all select 2 union all select 3 union all select 4 union all
select 5 union all select 6 union all select 7 union all select 8 union all select 9 union all
select 10 union all select 11 union all select 12 union all select 13 union all select 14 union all
select 15 union all select 16 union all select 17 union all select 18 union all select 19 union all
select 20 union all select 21 union all select 22 union all select 23 union all select 24 union all
select 25 union all select 26 union all select 27 union all select 28 union all select 29 union all
select 30 union all select 31) AS pos(n)
WHERE p.pronargs > pos.n
SELECT p.pronamespace, CAST(p.proname || '_' || CAST(p.oid AS text) AS sql_identifier),
'ROUTINE'::text, pos.n, p.proargtypes[pos.n-1]
FROM pg_proc p, _pg_keypositions() AS pos(n)
WHERE p.pronargs >= pos.n
UNION ALL
/* result types */
SELECT p.pronamespace, p.proname, 'ROUTINE'::text, 0, p.prorettype
SELECT p.pronamespace, CAST(p.proname || '_' || CAST(p.oid AS text) AS sql_identifier),
'ROUTINE'::text, 0, p.prorettype
FROM pg_proc p
) AS x (objschema, objname, objtype, objdtdid, objtypeid)