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More information schema views.

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This commit is contained in:
Peter Eisentraut
2003-06-17 18:00:48 +00:00
parent 3d6fd2557c
commit 596652d6eb
2 changed files with 1041 additions and 29 deletions
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331
src/backend/catalog/information_schema.sql
View File

@@ -4,7 +4,7 @@
*
* Copyright 2002, PostgreSQL Global Development Group
*
* $Id: information_schema.sql,v 1.8 2003/06/11 09:23:55 petere Exp $
* $Id: information_schema.sql,v 1.9 2003/06/17 18:00:48 petere Exp $
*/
@@ -78,13 +78,14 @@ CREATE VIEW check_constraints AS
CAST(con.consrc AS character_data) AS check_clause
FROM pg_namespace rs,
pg_constraint con
LEFT OUTER JOIN pg_class c on (c.oid = con.conrelid)
LEFT OUTER JOIN pg_type t on (t.oid = con.contypid),
LEFT OUTER JOIN pg_class c ON (c.oid = con.conrelid)
LEFT OUTER JOIN pg_type t ON (t.oid = con.contypid),
pg_user u
WHERE rs.oid = con.connamespace
AND u.usesysid = coalesce(c.relowner, t.typowner)
AND u.usename = current_user
AND con.contype = 'c';
AND con.contype = 'c'
AND c.relkind = 'r';
GRANT SELECT ON check_constraints TO PUBLIC;
@@ -106,9 +107,15 @@ CREATE VIEW column_domain_usage AS
FROM pg_type t, pg_namespace nt, pg_class c, pg_namespace nc,
pg_attribute a, pg_user u
WHERE t.typnamespace = nt.oid AND t.typtype = 'd'
AND c.relnamespace = nc.oid AND a.attrelid = c.oid
AND a.atttypid = t.oid AND t.typowner = u.usesysid
WHERE t.typnamespace = nt.oid
AND c.relnamespace = nc.oid
AND a.attrelid = c.oid
AND a.atttypid = t.oid
AND t.typowner = u.usesysid
AND t.typtype = 'd'
AND c.relkind IN ('r', 'v')
AND a.attnum > 0
AND NOT a.attisdropped
AND u.usename = current_user;
GRANT SELECT ON column_domain_usage TO PUBLIC;
@@ -119,23 +126,70 @@ GRANT SELECT ON column_domain_usage TO PUBLIC;
* COLUMN_PRIVILEGES
*/
-- PostgreSQL does not have column privileges, so this view is empty.
-- (Table privileges do not also count as column privileges.)
CREATE VIEW column_privileges AS
SELECT CAST(null AS sql_identifier) AS grantor,
CAST(null AS sql_identifier) AS grantee,
CAST(null AS sql_identifier) AS table_catalog,
CAST(null AS sql_identifier) AS table_schema,
CAST(null AS sql_identifier) AS table_name,
CAST(null AS sql_identifier) AS column_name,
CAST(null AS character_data) AS privilege_type,
CAST(null AS character_data) AS is_grantable
WHERE false;
SELECT CAST(u_grantor.usename AS sql_identifier) AS grantor,
CAST(u_grantee.usename AS sql_identifier) AS grantee,
CAST(current_database() AS sql_identifier) AS table_catalog,
CAST(nc.nspname AS sql_identifier) AS table_schema,
CAST(c.relname AS sql_identifier) AS table_name,
CAST(a.attname AS sql_identifier) AS column_name,
CAST(pr.type AS character_data) AS privilege_type,
CAST(
CASE WHEN aclcontains(c.relacl,
makeaclitem(u_grantee.usesysid, 0, u_grantor.usesysid, pr.type, true))
THEN 'YES' ELSE 'NO' END AS character_data) AS is_grantable
FROM pg_attribute a,
pg_class c,
pg_namespace nc,
pg_user u_grantor,
(SELECT usesysid, usename FROM pg_user UNION SELECT 0, 'PUBLIC') AS u_grantee,
(SELECT 'SELECT' UNION SELECT 'DELETE' UNION SELECT 'INSERT' UNION SELECT 'UPDATE'
UNION SELECT 'REFERENCES' UNION SELECT 'TRIGGER') AS pr (type)
WHERE a.attrelid = c.oid
AND c.relnamespace = nc.oid
AND a.attnum > 0
AND NOT a.attisdropped
AND c.relkind IN ('r', 'v')
AND aclcontains(c.relacl,
makeaclitem(u_grantee.usesysid, 0, u_grantor.usesysid, pr.type, false))
AND (u_grantor.usename = current_user
OR u_grantee.usename = current_user
OR u_grantee.usename = 'PUBLIC');
GRANT SELECT ON column_privileges TO PUBLIC;
/*
* 20.17
* COLUMN_UDT_USAGE view
*/
CREATE VIEW column_udt_usage AS
SELECT CAST(current_database() AS sql_identifier) AS udt_catalog,
CAST(coalesce(nbt.nspname, nt.nspname) AS sql_identifier) AS udt_schema,
CAST(coalesce(bt.typname, t.typname) AS sql_identifier) AS udt_name,
CAST(current_database() AS sql_identifier) AS table_catalog,
CAST(nc.nspname AS sql_identifier) AS table_schema,
CAST(c.relname AS sql_identifier) AS table_name,
CAST(a.attname AS sql_identifier) AS column_name
FROM pg_attribute a, pg_class c, pg_namespace nc, pg_user u,
(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))
ON (t.typtype = 'd' AND t.typbasetype = bt.oid)
WHERE a.attrelid = c.oid
AND a.atttypid = t.oid
AND u.usesysid = coalesce(bt.typowner, t.typowner)
AND nc.oid = c.relnamespace
AND a.attnum > 0 AND NOT a.attisdropped AND c.relkind in ('r', 'v')
AND u.usename = current_user;
GRANT SELECT ON column_udt_usage TO PUBLIC;
/*
* 20.18
* COLUMNS view
@@ -305,9 +359,6 @@ GRANT SELECT ON columns TO PUBLIC;
* CONSTRAINT_COLUMN_USAGE view
*/
-- FIXME: This only works for check constraints so far; for the others
-- we need a built-in way to convert arrays to virtual tables.
CREATE VIEW constraint_column_usage AS
SELECT CAST(current_database() AS sql_identifier) AS table_catalog,
CAST(tblschema AS sql_identifier) AS table_schema,
@@ -318,6 +369,7 @@ CREATE VIEW constraint_column_usage AS
CAST(cstrname AS sql_identifier) AS constraint_name
FROM (
/* check constraints */
SELECT DISTINCT nr.nspname, r.relname, r.relowner, a.attname, nc.nspname, c.conname
FROM pg_namespace nr, pg_class r, pg_attribute a, pg_depend d, pg_namespace nc, pg_constraint c
WHERE nr.oid = r.relnamespace
@@ -329,6 +381,33 @@ CREATE VIEW constraint_column_usage AS
AND d.objid = c.oid
AND c.connamespace = nc.oid
AND c.contype = 'c'
AND r.relkind = 'r'
AND a.attnum > 0
AND NOT a.attisdropped
UNION
/* 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 select 2 union select 3 union select 4 union select 5 union
select 6 union select 7 union select 8 union select 9 union select 10 union
select 11 union select 12 union select 13 union select 14 union select 15 union
select 16 union select 17 union select 18 union select 19 union select 20 union
select 21 union select 22 union select 23 union select 24 union select 25 union
select 26 union select 27 union select 28 union select 29 union select 30 union
select 31 union select 32) AS pos(n)
WHERE nr.oid = r.relnamespace
AND r.oid = a.attrelid
AND r.oid = c.conrelid
AND nc.oid = c.connamespace
AND (CASE WHEN c.contype = 'f' THEN c.confkey[pos.n] = a.attnum
ELSE c.conkey[pos.n] = a.attnum END)
AND a.attnum > 0
AND NOT a.attisdropped
AND c.contype IN ('p', 'u', 'f')
AND r.relkind = 'r'
) AS x (tblschema, tblname, tblowner, colname, cstrschema, cstrname),
pg_user u
@@ -357,6 +436,7 @@ CREATE VIEW constraint_table_usage AS
WHERE c.connamespace = nc.oid AND r.relnamespace = nr.oid
AND ( (c.contype = 'f' AND c.confrelid = r.oid)
OR (c.contype IN ('p', 'u') AND c.conrelid = r.oid) )
AND r.relkind = 'r'
AND r.relowner = u.usesysid AND u.usename = current_user;
GRANT SELECT ON constraint_table_usage TO PUBLIC;
@@ -388,6 +468,33 @@ CREATE VIEW domain_constraints AS
GRANT SELECT ON domain_constraints TO PUBLIC;
/*
* 20.25
* DOMAIN_UDT_USAGE view
*/
CREATE VIEW domain_udt_usage AS
SELECT CAST(current_database() AS sql_identifier) AS udt_catalog,
CAST(nbt.nspname AS sql_identifier) AS udt_schema,
CAST(bt.typname AS sql_identifier) AS udt_name,
CAST(current_database() AS sql_identifier) AS domain_catalog,
CAST(nt.nspname AS sql_identifier) AS domain_schema,
CAST(t.typname AS sql_identifier) AS domain_name
FROM pg_type t, pg_namespace nt,
pg_type bt, pg_namespace nbt,
pg_user u
WHERE t.typnamespace = nt.oid
AND t.typbasetype = bt.oid
AND bt.typnamespace = nbt.oid
AND t.typtype = 'd'
AND bt.typowner = u.usesysid
AND u.usename = current_user;
GRANT SELECT ON domain_udt_usage TO PUBLIC;
/*
* 20.26
* DOMAINS view
@@ -487,6 +594,46 @@ CREATE VIEW domains AS
GRANT SELECT ON domains TO PUBLIC;
/*
* 20.30
* KEY_COLUMN_USAGE view
*/
CREATE VIEW key_column_usage AS
SELECT CAST(current_database() AS sql_identifier) AS constraint_catalog,
CAST(nc.nspname AS sql_identifier) AS constraint_schema,
CAST(c.conname AS sql_identifier) AS constraint_name,
CAST(current_database() AS sql_identifier) AS table_catalog,
CAST(nr.nspname AS sql_identifier) AS table_schema,
CAST(r.relname AS sql_identifier) AS table_name,
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 select 2 union select 3 union select 4 union select 5 union
select 6 union select 7 union select 8 union select 9 union select 10 union
select 11 union select 12 union select 13 union select 14 union select 15 union
select 16 union select 17 union select 18 union select 19 union select 20 union
select 21 union select 22 union select 23 union select 24 union select 25 union
select 26 union select 27 union select 28 union select 29 union select 30 union
select 31 union select 32) AS pos(n)
WHERE nr.oid = r.relnamespace
AND r.oid = a.attrelid
AND r.oid = c.conrelid
AND nc.oid = c.connamespace
AND c.conkey[pos.n] = a.attnum
AND a.attnum > 0
AND NOT a.attisdropped
AND c.contype IN ('p', 'u', 'f')
AND r.relkind = 'r'
AND r.relowner = u.usesysid
AND u.usename = current_user;
GRANT SELECT ON key_column_usage TO PUBLIC;
/*
* 20.33
* PARAMETERS view
@@ -593,6 +740,7 @@ CREATE VIEW referential_constraints AS
AND con.confkey = pkc.conkey
AND pkc.connamespace = npkc.oid
AND c.relowner = u.usesysid
AND c.relkind = 'r'
AND u.usename = current_user;
GRANT SELECT ON referential_constraints TO PUBLIC;
@@ -932,6 +1080,7 @@ CREATE VIEW table_constraints AS
WHERE nc.oid = c.connamespace AND nr.oid = r.relnamespace
AND c.conrelid = r.oid AND r.relowner = u.usesysid
AND r.relkind = 'r'
AND u.usename = current_user;
-- FIMXE: Not-null constraints are missing here.
@@ -965,6 +1114,7 @@ CREATE VIEW table_privileges AS
UNION SELECT 'REFERENCES' UNION SELECT 'TRIGGER') AS pr (type)
WHERE c.relnamespace = nc.oid
AND c.relkind IN ('r', 'v')
AND aclcontains(c.relacl,
makeaclitem(u_grantee.usesysid, 0, u_grantor.usesysid, pr.type, false))
AND (u_grantor.usename = current_user
@@ -1014,6 +1164,68 @@ CREATE VIEW tables AS
GRANT SELECT ON tables TO PUBLIC;
/*
* 20.59
* TRIGGERED_UPDATE_COLUMNS view
*/
-- PostgreSQL doesn't allow the specification of individual triggered
-- update columns, so this view is empty.
CREATE VIEW triggered_update_columns AS
SELECT CAST(current_database() AS sql_identifier) AS trigger_catalog,
CAST(null AS sql_identifier) AS trigger_schema,
CAST(null AS sql_identifier) AS trigger_name,
CAST(current_database() AS sql_identifier) AS event_object_catalog,
CAST(null AS sql_identifier) AS event_object_schema,
CAST(null AS sql_identifier) AS event_object_table,
CAST(null AS sql_identifier) AS event_object_column
WHERE false;
GRANT SELECT ON triggered_update_columns TO PUBLIC;
/*
* 20.62
* TRIGGERS view
*/
CREATE VIEW triggers AS
SELECT CAST(current_database() AS sql_identifier) AS trigger_catalog,
CAST(n.nspname AS sql_identifier) AS trigger_schema,
CAST(t.tgname AS sql_identifier) AS trigger_name,
CAST(em.text AS character_data) AS event_manipulation,
CAST(current_database() AS sql_identifier) AS event_object_catalog,
CAST(n.nspname AS sql_identifier) AS event_object_schema,
CAST(c.relname AS sql_identifier) AS event_object_table,
CAST(null AS cardinal_number) AS action_order,
CAST(null AS character_data) AS action_condition,
CAST(
substring(pg_get_triggerdef(t.oid) from
position('EXECUTE PROCEDURE' in substring(pg_get_triggerdef(t.oid) from 48)) + 47)
AS character_data) AS action_statement,
CAST(
CASE WHEN t.tgtype & 1 = 1 THEN 'ROW' ELSE 'STATEMENT' END
AS character_data) AS action_orientation,
CAST(
CASE WHEN t.tgtype & 2 = 2 THEN 'BEFORE' ELSE 'AFTER' END
AS character_data) AS condition_timing,
CAST(null AS sql_identifier) AS condition_reference_old_table,
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 SELECT 8, 'DELETE' UNION SELECT 16, 'UPDATE') AS em (num, text)
WHERE n.oid = c.relnamespace
AND c.oid = t.tgrelid
AND c.relowner = u.usesysid
AND t.tgtype & em.num <> 0
AND NOT t.tgisconstraint
AND u.usename = current_user;
GRANT SELECT ON triggers TO PUBLIC;
/*
* 20.63
* USAGE_PRIVILEGES view
@@ -1044,6 +1256,81 @@ CREATE VIEW usage_privileges AS
GRANT SELECT ON usage_privileges TO PUBLIC;
/*
* 20.65
* VIEW_COLUMN_USAGE
*/
CREATE VIEW view_column_usage AS
SELECT DISTINCT
CAST(current_database() AS sql_identifier) AS view_catalog,
CAST(nv.nspname AS sql_identifier) AS view_schema,
CAST(v.relname AS sql_identifier) AS view_name,
CAST(current_database() AS sql_identifier) AS table_catalog,
CAST(nt.nspname AS sql_identifier) AS table_schema,
CAST(t.relname AS sql_identifier) AS table_name,
CAST(a.attname AS sql_identifier) AS column_name
FROM pg_user, pg_namespace nv, pg_class v, pg_depend dv,
pg_depend dt, pg_class t, pg_namespace nt,
pg_attribute a, pg_user u
WHERE nv.oid = v.relnamespace
AND v.relkind = 'v'
AND v.oid = dv.refobjid
AND dv.refclassid = (SELECT oid FROM pg_class WHERE relname = 'pg_class')
AND dv.classid = (SELECT oid FROM pg_class WHERE relname = 'pg_rewrite')
AND dv.deptype = 'i'
AND dv.objid = dt.objid
AND dv.refobjid <> dt.refobjid
AND dt.classid = (SELECT oid FROM pg_class WHERE relname = 'pg_rewrite')
AND dt.refclassid = (SELECT oid FROM pg_class WHERE relname = 'pg_class')
AND dt.refobjid = t.oid
AND t.relnamespace = nt.oid
AND t.relkind IN ('r', 'v')
AND t.oid = a.attrelid
AND dt.refobjsubid = a.attnum
AND t.relowner = u.usesysid AND u.usename = current_user;
GRANT SELECT ON view_column_usage TO PUBLIC;
/*
* 20.66
* VIEW_TABLE_USAGE
*/
CREATE VIEW view_table_usage AS
SELECT DISTINCT
CAST(current_database() AS sql_identifier) AS view_catalog,
CAST(nv.nspname AS sql_identifier) AS view_schema,
CAST(v.relname AS sql_identifier) AS view_name,
CAST(current_database() AS sql_identifier) AS table_catalog,
CAST(nt.nspname AS sql_identifier) AS table_schema,
CAST(t.relname AS sql_identifier) AS table_name
FROM pg_user, pg_namespace nv, pg_class v, pg_depend dv,
pg_depend dt, pg_class t, pg_namespace nt,
pg_user u
WHERE nv.oid = v.relnamespace
AND v.relkind = 'v'
AND v.oid = dv.refobjid
AND dv.refclassid = (SELECT oid FROM pg_class WHERE relname = 'pg_class')
AND dv.classid = (SELECT oid FROM pg_class WHERE relname = 'pg_rewrite')
AND dv.deptype = 'i'
AND dv.objid = dt.objid
AND dv.refobjid <> dt.refobjid
AND dt.classid = (SELECT oid FROM pg_class WHERE relname = 'pg_rewrite')
AND dt.refclassid = (SELECT oid FROM pg_class WHERE relname = 'pg_class')
AND dt.refobjid = t.oid
AND t.relnamespace = nt.oid
AND t.relkind IN ('r', 'v')
AND t.relowner = u.usesysid AND u.usename = current_user;
GRANT SELECT ON view_table_usage TO PUBLIC;
/*
* 20.68
* VIEWS view