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Information schema improvements
This commit is contained in:
Peter Eisentraut
@ -4,7 +4,7 @@
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*
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* Copyright 2002, PostgreSQL Global Development Group
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*
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* $Id: information_schema.sql,v 1.5 2003/05/18 20:55:57 petere Exp $
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* $Id: information_schema.sql,v 1.6 2003/05/25 09:36:09 petere Exp $
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*/
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@ -76,12 +76,13 @@ CREATE VIEW check_constraints AS
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CAST(rs.nspname AS sql_identifier) AS constraint_schema,
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CAST(con.conname AS sql_identifier) AS constraint_name,
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CAST(con.consrc AS character_data) AS check_clause
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FROM pg_namespace rs, pg_constraint con
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left outer join pg_class c on (c.oid = con.conrelid)
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left outer join pg_type t on (t.oid = con.contypid),
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FROM pg_namespace rs,
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pg_constraint con
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LEFT OUTER JOIN pg_class c on (c.oid = con.conrelid)
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LEFT OUTER JOIN pg_type t on (t.oid = con.contypid),
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pg_user u
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WHERE rs.oid = con.connamespace
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AND u.usesysid IN (c.relowner, t.typowner)
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AND u.usesysid = coalesce(c.relowner, t.typowner)
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AND u.usename = current_user
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AND con.contype = 'c';
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@ -150,30 +151,51 @@ CREATE VIEW columns AS
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CASE WHEN u.usename = current_user THEN a.adsrc ELSE null END
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AS character_data)
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AS column_default,
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CAST(CASE WHEN a.attnotnull THEN 'NO' ELSE 'YES' END
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CAST(CASE WHEN a.attnotnull OR (t.typtype = 'd' AND t.typnotnull) THEN 'NO' ELSE 'YES' END
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AS character_data)
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AS is_nullable,
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CAST(format_type(a.atttypid, null) AS character_data)
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CAST(
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CASE WHEN t.typtype = 'd' THEN
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CASE WHEN nbt.nspname = 'pg_catalog'
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THEN format_type(t.typbasetype, null)
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ELSE 'USER-DEFINED' END
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ELSE
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CASE WHEN nt.nspname = 'pg_catalog'
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THEN format_type(a.atttypid, null)
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ELSE 'USER-DEFINED' END
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END
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AS character_data)
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AS data_type,
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CAST(
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CASE WHEN a.atttypid IN (25, 1042, 1043, 1560, 1562) AND a.atttypmod <> -1
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THEN a.atttypmod - 4
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ELSE null END
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CASE WHEN t.typtype = 'd' THEN
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CASE WHEN t.typbasetype IN (25, 1042, 1043, 1560, 1562) AND t.typtypmod <> -1
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THEN t.typtypmod - 4
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ELSE null END
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ELSE
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CASE WHEN a.atttypid IN (25, 1042, 1043, 1560, 1562) AND a.atttypmod <> -1
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THEN a.atttypmod - 4
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ELSE null END
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END
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AS cardinal_number)
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AS character_maximum_length,
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CAST(
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CASE WHEN a.atttypid IN (25, 1042, 1043) THEN 2^30 ELSE null END
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CASE WHEN t.typtype = 'd' THEN
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CASE WHEN t.typbasetype IN (25, 1042, 1043) THEN 2^30 ELSE null END
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ELSE
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CASE WHEN a.atttypid IN (25, 1042, 1043) THEN 2^30 ELSE null END
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END
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AS cardinal_number)
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AS character_octet_length,
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CAST(
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CASE a.atttypid
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CASE (CASE WHEN t.typtype = 'd' THEN t.typbasetype ELSE a.atttypid END)
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WHEN 21 /*int2*/ THEN 16
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WHEN 23 /*int4*/ THEN 32
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WHEN 20 /*int8*/ THEN 64
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WHEN 1700 /*numeric*/ THEN ((a.atttypmod - 4) >> 16) & 65535
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WHEN 1700 /*numeric*/ THEN ((CASE WHEN t.typtype = 'd' THEN t.typtypmod ELSE a.atttypmod END - 4) >> 16) & 65535
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WHEN 700 /*float4*/ THEN 24 /*FLT_MANT_DIG*/
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WHEN 701 /*float8*/ THEN 53 /*DBL_MANT_DIG*/
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ELSE null END
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@ -181,25 +203,45 @@ CREATE VIEW columns AS
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AS numeric_precision,
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CAST(
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CASE WHEN a.atttypid IN (21, 23, 20, 700, 701) THEN 2
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WHEN a.atttypid IN (1700) THEN 10
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ELSE null END
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CASE WHEN t.typtype = 'd' THEN
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CASE WHEN t.typbasetype IN (21, 23, 20, 700, 701) THEN 2
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WHEN t.typbasetype IN (1700) THEN 10
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ELSE null END
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ELSE
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CASE WHEN a.atttypid IN (21, 23, 20, 700, 701) THEN 2
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WHEN a.atttypid IN (1700) THEN 10
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ELSE null END
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END
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AS cardinal_number)
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AS numeric_precision_radix,
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CAST(
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CASE WHEN a.atttypid IN (21, 23, 20) THEN 0
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WHEN a.atttypid IN (1700) THEN (a.atttypmod - 4) & 65535
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ELSE null END
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CASE WHEN t.typtype = 'd' THEN
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CASE WHEN t.typbasetype IN (21, 23, 20) THEN 0
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WHEN t.typbasetype IN (1700) THEN (t.typtypmod - 4) & 65535
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ELSE null END
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ELSE
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CASE WHEN a.atttypid IN (21, 23, 20) THEN 0
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WHEN a.atttypid IN (1700) THEN (a.atttypmod - 4) & 65535
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ELSE null END
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END
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AS cardinal_number)
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AS numeric_scale,
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CAST(
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CASE WHEN a.atttypid IN (1083, 1114, 1184, 1266)
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THEN (CASE WHEN a.atttypmod <> -1 THEN a.atttypmod ELSE null END)
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WHEN a.atttypid IN (1186)
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THEN (CASE WHEN a.atttypmod <> -1 THEN a.atttypmod & 65535 ELSE null END)
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ELSE null END
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CASE WHEN t.typtype = 'd' THEN
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CASE WHEN t.typbasetype IN (1083, 1114, 1184, 1266)
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THEN (CASE WHEN t.typtypmod <> -1 THEN t.typtypmod ELSE null END)
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WHEN t.typbasetype IN (1186)
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THEN (CASE WHEN t.typtypmod <> -1 THEN t.typtypmod & 65535 ELSE null END)
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ELSE null END
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ELSE
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CASE WHEN a.atttypid IN (1083, 1114, 1184, 1266)
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THEN (CASE WHEN a.atttypmod <> -1 THEN a.atttypmod ELSE null END)
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WHEN a.atttypid IN (1186)
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THEN (CASE WHEN a.atttypmod <> -1 THEN a.atttypmod & 65535 ELSE null END)
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ELSE null END
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END
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AS cardinal_number)
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AS datetime_precision,
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@ -221,36 +263,105 @@ CREATE VIEW columns AS
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CAST(CASE WHEN t.typtype = 'd' THEN t.typname ELSE null END
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AS sql_identifier) AS domain_name,
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CAST(CASE WHEN t.typtype <> 'd' THEN current_database() ELSE null END
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AS sql_identifier) AS udt_catalog,
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CAST(CASE WHEN t.typtype <> 'd' THEN nt.nspname ELSE null END
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AS sql_identifier) AS udt_schema,
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CAST(CASE WHEN t.typtype <> 'd' THEN t.typname ELSE null END
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AS sql_identifier) AS udt_name,
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CAST(current_database() AS sql_identifier) AS udt_catalog,
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CAST(coalesce(nbt.nspname, nt.nspname) AS sql_identifier) AS udt_schema,
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CAST(coalesce(bt.typname, t.typname) AS sql_identifier) AS udt_name,
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CAST(null AS sql_identifier) AS scope_catalog,
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CAST(null AS sql_identifier) AS scope_schema,
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CAST(null AS sql_identifier) AS scope_name,
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CAST(null AS cardinal_number) AS maximum_cardinality,
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CAST(null AS sql_identifier) AS dtd_identifier,
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CAST(CAST(t.oid AS varchar) AS sql_identifier) AS dtd_identifier,
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CAST('NO' AS character_data) AS is_self_referencing
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FROM (pg_attribute LEFT JOIN pg_attrdef ON attrelid = adrelid AND attnum = adnum) AS a,
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pg_class c, pg_namespace nc, pg_type t, pg_namespace nt, pg_user u
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FROM (pg_attribute LEFT JOIN pg_attrdef ON attrelid = adrelid AND attnum = adnum) AS a,
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pg_class c, pg_namespace nc, pg_user u,
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(pg_type t JOIN pg_namespace nt ON (t.typnamespace = nt.oid))
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LEFT JOIN (pg_type bt JOIN pg_namespace nbt ON (bt.typnamespace = nbt.oid))
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ON (t.typtype = 'd' AND t.typbasetype = bt.oid)
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WHERE a.attrelid = c.oid
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AND a.atttypid = t.oid
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AND u.usesysid = c.relowner
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AND nc.oid = c.relnamespace
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AND nt.oid = t.typnamespace
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AND u.usename = current_user
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WHERE a.attrelid = c.oid
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AND a.atttypid = t.oid
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AND u.usesysid = c.relowner
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AND nc.oid = c.relnamespace
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AND a.attnum > 0 AND NOT a.attisdropped AND c.relkind in ('r', 'v');
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AND a.attnum > 0 AND NOT a.attisdropped AND c.relkind in ('r', 'v')
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AND (u.usename = current_user
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OR has_table_privilege(c.oid, 'SELECT')
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OR has_table_privilege(c.oid, 'INSERT')
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OR has_table_privilege(c.oid, 'UPDATE')
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OR has_table_privilege(c.oid, 'DELETE')
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OR has_table_privilege(c.oid, 'RULE')
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OR has_table_privilege(c.oid, 'RERERENCES')
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OR has_table_privilege(c.oid, 'TRIGGER') );
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GRANT SELECT ON columns TO PUBLIC;
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/*
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* 20.19
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* CONSTRAINT_COLUMN_USAGE view
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*/
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-- FIXME: This only works for check constraints so far; for the others
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-- we need a built-in way to convert arrays to virtual tables.
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CREATE VIEW constraint_column_usage AS
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SELECT CAST(current_database() AS sql_identifier) AS table_catalog,
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CAST(tblschema AS sql_identifier) AS table_schema,
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CAST(tblname AS sql_identifier) AS table_name,
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CAST(colname AS sql_identifier) AS column_name,
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CAST(current_database() AS sql_identifier) AS constraint_catalog,
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CAST(cstrschema AS sql_identifier) AS constraint_schema,
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CAST(cstrname AS sql_identifier) AS constraint_name
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FROM (
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SELECT DISTINCT nr.nspname, r.relname, r.relowner, a.attname, nc.nspname, c.conname
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FROM pg_namespace nr, pg_class r, pg_attribute a, pg_depend d, pg_namespace nc, pg_constraint c
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WHERE nr.oid = r.relnamespace
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AND r.oid = a.attrelid
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AND d.refclassid = (SELECT oid FROM pg_class WHERE relname = 'pg_class')
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AND d.refobjid = r.oid
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AND d.refobjsubid = a.attnum
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AND d.classid = (SELECT oid FROM pg_class WHERE relname = 'pg_constraint')
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AND d.objid = c.oid
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AND c.connamespace = nc.oid
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AND c.contype = 'c'
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) AS x (tblschema, tblname, tblowner, colname, cstrschema, cstrname),
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pg_user u
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WHERE x.tblowner = u.usesysid AND u.usename = current_user;
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GRANT SELECT ON constraint_column_usage TO PUBLIC;
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/*
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* 20.20
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* CONSTRAINT_TABLE_USAGE view
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*/
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CREATE VIEW constraint_table_usage AS
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SELECT CAST(current_database() AS sql_identifier) AS table_catalog,
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CAST(nr.nspname AS sql_identifier) AS table_schema,
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CAST(r.relname AS sql_identifier) AS table_name,
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CAST(current_database() AS sql_identifier) AS constraint_catalog,
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CAST(nc.nspname AS sql_identifier) AS constraint_schema,
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CAST(c.conname AS sql_identifier) AS constraint_name
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FROM pg_constraint c, pg_namespace nc,
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pg_class r, pg_namespace nr,
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pg_user u
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WHERE c.connamespace = nc.oid AND r.relnamespace = nr.oid
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AND ( (c.contype = 'f' AND c.confrelid = r.oid)
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OR (c.contype IN ('p', 'u') AND c.conrelid = r.oid) )
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AND r.relowner = u.usesysid AND u.usename = current_user;
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GRANT SELECT ON constraint_table_usage TO PUBLIC;
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/*
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* 20.24
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* DOMAIN_CONSTRAINTS view
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@ -284,9 +395,14 @@ GRANT SELECT ON domain_constraints TO PUBLIC;
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CREATE VIEW domains AS
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SELECT CAST(current_database() AS sql_identifier) AS domain_catalog,
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CAST(rs.nspname AS sql_identifier) AS domain_schema,
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CAST(nt.nspname AS sql_identifier) AS domain_schema,
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CAST(t.typname AS sql_identifier) AS domain_name,
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CAST(format_type(t.typbasetype, null) AS character_data)
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CAST(
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CASE WHEN nbt.nspname = 'pg_catalog'
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THEN format_type(t.typbasetype, null)
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ELSE 'USER-DEFINED' END
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AS character_data)
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AS data_type,
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CAST(
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@ -300,6 +416,7 @@ CREATE VIEW domains AS
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CASE WHEN t.typbasetype IN (25, 1042, 1043) THEN 2^30 ELSE null END
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AS cardinal_number)
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AS character_octet_length,
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CAST(null AS sql_identifier) AS character_set_catalog,
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CAST(null AS sql_identifier) AS character_set_schema,
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CAST(null AS sql_identifier) AS character_set_name,
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@ -346,42 +463,26 @@ CREATE VIEW domains AS
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CAST(null AS character_data) AS interval_type, -- XXX
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CAST(null AS character_data) AS interval_precision, -- XXX
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CAST(typdefault AS character_data) AS domain_default,
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CAST(t.typdefault AS character_data) AS domain_default,
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CAST(CASE WHEN t.typbasetype = 0 THEN current_database() ELSE null END
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AS sql_identifier) AS udt_catalog,
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CAST(CASE WHEN t.typbasetype = 0 THEN rs.nspname ELSE null END
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AS sql_identifier) AS udt_schema,
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CAST(CASE WHEN t.typbasetype = 0 THEN t.typname ELSE null END
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AS sql_identifier) AS udt_name,
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CAST(current_database() AS sql_identifier) AS udt_catalog,
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CAST(nbt.nspname AS sql_identifier) AS udt_schema,
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CAST(bt.typname AS sql_identifier) AS udt_name,
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CAST(null AS sql_identifier) AS scope_catalog,
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CAST(null AS sql_identifier) AS scope_schema,
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CAST(null AS sql_identifier) AS scope_name,
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CAST(null AS cardinal_number) AS maximum_cardinality,
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CAST(null AS sql_identifier) AS dtd_identifier
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CAST(CAST(t.oid AS varchar) AS sql_identifier) AS dtd_identifier
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FROM pg_namespace rs,
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pg_type t,
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pg_user u
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WHERE rs.oid = t.typnamespace
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AND t.typtype = 'd'
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AND t.typowner = u.usesysid
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AND (u.usename = current_user
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OR EXISTS (SELECT 1
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FROM pg_user AS u2
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WHERE rs.nspowner = u2.usesysid
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AND u2.usename = current_user)
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OR EXISTS (SELECT 1
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FROM pg_user AS u3,
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pg_attribute AS a3,
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pg_class AS c3
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WHERE u3.usesysid = c3.relowner
|
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AND a3.attrelid = c3.oid
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AND a3.atttypid = t.oid));
|
||||
FROM pg_type t, pg_namespace nt,
|
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pg_type bt, pg_namespace nbt
|
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|
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WHERE t.typnamespace = nt.oid
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AND t.typbasetype = bt.oid
|
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AND bt.typnamespace = nbt.oid
|
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AND t.typtype = 'd';
|
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GRANT SELECT ON domains TO PUBLIC;
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@ -396,8 +497,8 @@ CREATE VIEW referential_constraints AS
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CAST(ncon.nspname AS sql_identifier) AS constraint_schema,
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CAST(con.conname AS sql_identifier) AS constraint_name,
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CAST(current_database() AS sql_identifier) AS unique_constraint_catalog,
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CAST(null AS sql_identifier) AS unique_constraint_schema, -- XXX
|
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CAST(null AS sql_identifier) AS unique_constraint_name, -- XXX
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CAST(npkc.nspname AS sql_identifier) AS unique_constraint_schema,
|
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CAST(pkc.conname AS sql_identifier) AS unique_constraint_name,
|
||||
|
||||
CAST(
|
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CASE con.confmatchtype WHEN 'f' THEN 'FULL'
|
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@ -423,11 +524,16 @@ CREATE VIEW referential_constraints AS
|
||||
|
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FROM pg_namespace ncon,
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pg_constraint con,
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pg_class r,
|
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pg_class c,
|
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pg_constraint pkc,
|
||||
pg_namespace npkc,
|
||||
pg_user u
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||||
|
||||
WHERE ncon.oid = con.connamespace
|
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AND con.conrelid = r.oid AND r.relowner = u.usesysid
|
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AND con.conrelid = c.oid
|
||||
AND con.confkey = pkc.conkey
|
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AND pkc.connamespace = npkc.oid
|
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AND c.relowner = u.usesysid
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AND u.usename = current_user;
|
||||
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GRANT SELECT ON referential_constraints TO PUBLIC;
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||||
@ -714,13 +820,15 @@ CREATE VIEW tables AS
|
||||
FROM pg_namespace nc, pg_class c, pg_user u
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||||
|
||||
WHERE c.relnamespace = nc.oid AND u.usesysid = c.relowner
|
||||
AND c.relkind IN ('r', 'v')
|
||||
AND (u.usename = current_user
|
||||
OR EXISTS(SELECT 1 FROM information_schema.table_privileges tp
|
||||
WHERE tp.table_schema = nc.nspname
|
||||
AND tp.table_name = c.relname
|
||||
AND tp.grantee = current_user))
|
||||
|
||||
AND c.relkind IN ('r', 'v');
|
||||
OR has_table_privilege(c.oid, 'SELECT')
|
||||
OR has_table_privilege(c.oid, 'INSERT')
|
||||
OR has_table_privilege(c.oid, 'UPDATE')
|
||||
OR has_table_privilege(c.oid, 'DELETE')
|
||||
OR has_table_privilege(c.oid, 'RULE')
|
||||
OR has_table_privilege(c.oid, 'RERERENCES')
|
||||
OR has_table_privilege(c.oid, 'TRIGGER') );
|
||||
|
||||
GRANT SELECT ON tables TO PUBLIC;
|
||||
|
||||
@ -777,12 +885,14 @@ CREATE VIEW views AS
|
||||
FROM pg_namespace nc, pg_class c, pg_user u
|
||||
|
||||
WHERE c.relnamespace = nc.oid AND u.usesysid = c.relowner
|
||||
AND c.relkind = 'v'
|
||||
AND (u.usename = current_user
|
||||
OR EXISTS(SELECT 1 FROM information_schema.table_privileges tp
|
||||
WHERE tp.table_schema = nc.nspname
|
||||
AND tp.table_name = c.relname
|
||||
AND tp.grantee = current_user))
|
||||
|
||||
AND c.relkind = 'v';
|
||||
OR has_table_privilege(c.oid, 'SELECT')
|
||||
OR has_table_privilege(c.oid, 'INSERT')
|
||||
OR has_table_privilege(c.oid, 'UPDATE')
|
||||
OR has_table_privilege(c.oid, 'DELETE')
|
||||
OR has_table_privilege(c.oid, 'RULE')
|
||||
OR has_table_privilege(c.oid, 'RERERENCES')
|
||||
OR has_table_privilege(c.oid, 'TRIGGER') );
|
||||
|
||||
GRANT SELECT ON views TO PUBLIC;
|
||||
|
||||
Reference in New Issue
Block a user