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b06e6f1a9a
an array of regtype, rather than an array of OIDs. This is likely to be more useful to user, and the type OID can easily be obtained by casting a regtype value to OID. Per suggestion from Tom. Update the documentation and regression tests, and bump the catversion.
362 lines
13 KiB
SQL
362 lines
13 KiB
SQL
/*
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* PostgreSQL System Views
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*
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* Copyright (c) 1996-2005, PostgreSQL Global Development Group
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*
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* $PostgreSQL: pgsql/src/backend/catalog/system_views.sql,v 1.24 2006/01/16 18:15:30 neilc Exp $
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*/
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CREATE VIEW pg_roles AS
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SELECT
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rolname,
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rolsuper,
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rolinherit,
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rolcreaterole,
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rolcreatedb,
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rolcatupdate,
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rolcanlogin,
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rolconnlimit,
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'********'::text as rolpassword,
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rolvaliduntil,
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rolconfig,
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oid
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FROM pg_authid;
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CREATE VIEW pg_shadow AS
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SELECT
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rolname AS usename,
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oid AS usesysid,
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rolcreatedb AS usecreatedb,
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rolsuper AS usesuper,
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rolcatupdate AS usecatupd,
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rolpassword AS passwd,
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rolvaliduntil::abstime AS valuntil,
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rolconfig AS useconfig
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FROM pg_authid
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WHERE rolcanlogin;
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REVOKE ALL on pg_shadow FROM public;
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CREATE VIEW pg_group AS
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SELECT
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rolname AS groname,
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oid AS grosysid,
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ARRAY(SELECT member FROM pg_auth_members WHERE roleid = oid) AS grolist
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FROM pg_authid
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WHERE NOT rolcanlogin;
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CREATE VIEW pg_user AS
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SELECT
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usename,
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usesysid,
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usecreatedb,
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usesuper,
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usecatupd,
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'********'::text as passwd,
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valuntil,
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useconfig
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FROM pg_shadow;
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CREATE VIEW pg_rules AS
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SELECT
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N.nspname AS schemaname,
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C.relname AS tablename,
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R.rulename AS rulename,
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pg_get_ruledef(R.oid) AS definition
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FROM (pg_rewrite R JOIN pg_class C ON (C.oid = R.ev_class))
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LEFT JOIN pg_namespace N ON (N.oid = C.relnamespace)
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WHERE R.rulename != '_RETURN';
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CREATE VIEW pg_views AS
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SELECT
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N.nspname AS schemaname,
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C.relname AS viewname,
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pg_get_userbyid(C.relowner) AS viewowner,
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pg_get_viewdef(C.oid) AS definition
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FROM pg_class C LEFT JOIN pg_namespace N ON (N.oid = C.relnamespace)
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WHERE C.relkind = 'v';
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CREATE VIEW pg_tables AS
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SELECT
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N.nspname AS schemaname,
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C.relname AS tablename,
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pg_get_userbyid(C.relowner) AS tableowner,
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T.spcname AS tablespace,
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C.relhasindex AS hasindexes,
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C.relhasrules AS hasrules,
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(C.reltriggers > 0) AS hastriggers
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FROM pg_class C LEFT JOIN pg_namespace N ON (N.oid = C.relnamespace)
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LEFT JOIN pg_tablespace T ON (T.oid = C.reltablespace)
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WHERE C.relkind = 'r';
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CREATE VIEW pg_indexes AS
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SELECT
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N.nspname AS schemaname,
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C.relname AS tablename,
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I.relname AS indexname,
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T.spcname AS tablespace,
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pg_get_indexdef(I.oid) AS indexdef
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FROM pg_index X JOIN pg_class C ON (C.oid = X.indrelid)
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JOIN pg_class I ON (I.oid = X.indexrelid)
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LEFT JOIN pg_namespace N ON (N.oid = C.relnamespace)
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LEFT JOIN pg_tablespace T ON (T.oid = I.reltablespace)
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WHERE C.relkind = 'r' AND I.relkind = 'i';
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CREATE VIEW pg_stats AS
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SELECT
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nspname AS schemaname,
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relname AS tablename,
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attname AS attname,
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stanullfrac AS null_frac,
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stawidth AS avg_width,
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stadistinct AS n_distinct,
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CASE 1
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WHEN stakind1 THEN stavalues1
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WHEN stakind2 THEN stavalues2
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WHEN stakind3 THEN stavalues3
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WHEN stakind4 THEN stavalues4
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END AS most_common_vals,
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CASE 1
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WHEN stakind1 THEN stanumbers1
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WHEN stakind2 THEN stanumbers2
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WHEN stakind3 THEN stanumbers3
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WHEN stakind4 THEN stanumbers4
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END AS most_common_freqs,
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CASE 2
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WHEN stakind1 THEN stavalues1
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WHEN stakind2 THEN stavalues2
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WHEN stakind3 THEN stavalues3
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WHEN stakind4 THEN stavalues4
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END AS histogram_bounds,
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CASE 3
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WHEN stakind1 THEN stanumbers1[1]
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WHEN stakind2 THEN stanumbers2[1]
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WHEN stakind3 THEN stanumbers3[1]
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WHEN stakind4 THEN stanumbers4[1]
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END AS correlation
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FROM pg_statistic s JOIN pg_class c ON (c.oid = s.starelid)
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JOIN pg_attribute a ON (c.oid = attrelid AND attnum = s.staattnum)
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LEFT JOIN pg_namespace n ON (n.oid = c.relnamespace)
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WHERE has_table_privilege(c.oid, 'select');
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REVOKE ALL on pg_statistic FROM public;
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CREATE VIEW pg_locks AS
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SELECT *
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FROM pg_lock_status() AS L
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(locktype text, database oid, relation oid, page int4, tuple int2,
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transactionid xid, classid oid, objid oid, objsubid int2,
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transaction xid, pid int4, mode text, granted boolean);
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CREATE VIEW pg_prepared_xacts AS
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SELECT P.transaction, P.gid, P.prepared,
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U.rolname AS owner, D.datname AS database
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FROM pg_prepared_xact() AS P
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(transaction xid, gid text, prepared timestamptz, ownerid oid, dbid oid)
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LEFT JOIN pg_authid U ON P.ownerid = U.oid
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LEFT JOIN pg_database D ON P.dbid = D.oid;
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CREATE VIEW pg_prepared_statements AS
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SELECT P.name, P.statement, P.prepare_time, P.parameter_types, P.from_sql
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FROM pg_prepared_statement() AS P
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(name text, statement text, prepare_time timestamptz,
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parameter_types regtype[], from_sql boolean);
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CREATE VIEW pg_settings AS
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SELECT *
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FROM pg_show_all_settings() AS A
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(name text, setting text, category text, short_desc text, extra_desc text,
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context text, vartype text, source text, min_val text, max_val text);
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CREATE RULE pg_settings_u AS
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ON UPDATE TO pg_settings
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WHERE new.name = old.name DO
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SELECT set_config(old.name, new.setting, 'f');
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CREATE RULE pg_settings_n AS
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ON UPDATE TO pg_settings
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DO INSTEAD NOTHING;
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GRANT SELECT, UPDATE ON pg_settings TO PUBLIC;
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-- Statistics views
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CREATE VIEW pg_stat_all_tables AS
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SELECT
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C.oid AS relid,
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N.nspname AS schemaname,
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C.relname AS relname,
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pg_stat_get_numscans(C.oid) AS seq_scan,
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pg_stat_get_tuples_returned(C.oid) AS seq_tup_read,
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sum(pg_stat_get_numscans(I.indexrelid))::bigint AS idx_scan,
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sum(pg_stat_get_tuples_fetched(I.indexrelid))::bigint +
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pg_stat_get_tuples_fetched(C.oid) AS idx_tup_fetch,
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pg_stat_get_tuples_inserted(C.oid) AS n_tup_ins,
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pg_stat_get_tuples_updated(C.oid) AS n_tup_upd,
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pg_stat_get_tuples_deleted(C.oid) AS n_tup_del
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FROM pg_class C LEFT JOIN
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pg_index I ON C.oid = I.indrelid
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LEFT JOIN pg_namespace N ON (N.oid = C.relnamespace)
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WHERE C.relkind IN ('r', 't')
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GROUP BY C.oid, N.nspname, C.relname;
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CREATE VIEW pg_stat_sys_tables AS
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SELECT * FROM pg_stat_all_tables
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WHERE schemaname IN ('pg_catalog', 'pg_toast', 'information_schema');
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CREATE VIEW pg_stat_user_tables AS
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SELECT * FROM pg_stat_all_tables
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WHERE schemaname NOT IN ('pg_catalog', 'pg_toast', 'information_schema');
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CREATE VIEW pg_statio_all_tables AS
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SELECT
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C.oid AS relid,
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N.nspname AS schemaname,
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C.relname AS relname,
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pg_stat_get_blocks_fetched(C.oid) -
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pg_stat_get_blocks_hit(C.oid) AS heap_blks_read,
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pg_stat_get_blocks_hit(C.oid) AS heap_blks_hit,
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sum(pg_stat_get_blocks_fetched(I.indexrelid) -
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pg_stat_get_blocks_hit(I.indexrelid))::bigint AS idx_blks_read,
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sum(pg_stat_get_blocks_hit(I.indexrelid))::bigint AS idx_blks_hit,
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pg_stat_get_blocks_fetched(T.oid) -
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pg_stat_get_blocks_hit(T.oid) AS toast_blks_read,
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pg_stat_get_blocks_hit(T.oid) AS toast_blks_hit,
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pg_stat_get_blocks_fetched(X.oid) -
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pg_stat_get_blocks_hit(X.oid) AS tidx_blks_read,
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pg_stat_get_blocks_hit(X.oid) AS tidx_blks_hit
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FROM pg_class C LEFT JOIN
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pg_index I ON C.oid = I.indrelid LEFT JOIN
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pg_class T ON C.reltoastrelid = T.oid LEFT JOIN
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pg_class X ON T.reltoastidxid = X.oid
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LEFT JOIN pg_namespace N ON (N.oid = C.relnamespace)
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WHERE C.relkind IN ('r', 't')
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GROUP BY C.oid, N.nspname, C.relname, T.oid, X.oid;
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CREATE VIEW pg_statio_sys_tables AS
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SELECT * FROM pg_statio_all_tables
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WHERE schemaname IN ('pg_catalog', 'pg_toast', 'information_schema');
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CREATE VIEW pg_statio_user_tables AS
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SELECT * FROM pg_statio_all_tables
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WHERE schemaname NOT IN ('pg_catalog', 'pg_toast', 'information_schema');
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CREATE VIEW pg_stat_all_indexes AS
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SELECT
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C.oid AS relid,
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I.oid AS indexrelid,
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N.nspname AS schemaname,
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C.relname AS relname,
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I.relname AS indexrelname,
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pg_stat_get_numscans(I.oid) AS idx_scan,
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pg_stat_get_tuples_returned(I.oid) AS idx_tup_read,
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pg_stat_get_tuples_fetched(I.oid) AS idx_tup_fetch
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FROM pg_class C JOIN
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pg_index X ON C.oid = X.indrelid JOIN
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pg_class I ON I.oid = X.indexrelid
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LEFT JOIN pg_namespace N ON (N.oid = C.relnamespace)
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WHERE C.relkind IN ('r', 't');
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CREATE VIEW pg_stat_sys_indexes AS
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SELECT * FROM pg_stat_all_indexes
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WHERE schemaname IN ('pg_catalog', 'pg_toast', 'information_schema');
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CREATE VIEW pg_stat_user_indexes AS
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SELECT * FROM pg_stat_all_indexes
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WHERE schemaname NOT IN ('pg_catalog', 'pg_toast', 'information_schema');
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CREATE VIEW pg_statio_all_indexes AS
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SELECT
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C.oid AS relid,
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I.oid AS indexrelid,
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N.nspname AS schemaname,
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C.relname AS relname,
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I.relname AS indexrelname,
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pg_stat_get_blocks_fetched(I.oid) -
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pg_stat_get_blocks_hit(I.oid) AS idx_blks_read,
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pg_stat_get_blocks_hit(I.oid) AS idx_blks_hit
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FROM pg_class C JOIN
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pg_index X ON C.oid = X.indrelid JOIN
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pg_class I ON I.oid = X.indexrelid
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LEFT JOIN pg_namespace N ON (N.oid = C.relnamespace)
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WHERE C.relkind IN ('r', 't');
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CREATE VIEW pg_statio_sys_indexes AS
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SELECT * FROM pg_statio_all_indexes
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WHERE schemaname IN ('pg_catalog', 'pg_toast', 'information_schema');
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CREATE VIEW pg_statio_user_indexes AS
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SELECT * FROM pg_statio_all_indexes
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WHERE schemaname NOT IN ('pg_catalog', 'pg_toast', 'information_schema');
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CREATE VIEW pg_statio_all_sequences AS
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SELECT
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C.oid AS relid,
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N.nspname AS schemaname,
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C.relname AS relname,
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pg_stat_get_blocks_fetched(C.oid) -
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pg_stat_get_blocks_hit(C.oid) AS blks_read,
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pg_stat_get_blocks_hit(C.oid) AS blks_hit
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FROM pg_class C
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LEFT JOIN pg_namespace N ON (N.oid = C.relnamespace)
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WHERE C.relkind = 'S';
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CREATE VIEW pg_statio_sys_sequences AS
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SELECT * FROM pg_statio_all_sequences
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WHERE schemaname IN ('pg_catalog', 'pg_toast', 'information_schema');
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CREATE VIEW pg_statio_user_sequences AS
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SELECT * FROM pg_statio_all_sequences
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WHERE schemaname NOT IN ('pg_catalog', 'pg_toast', 'information_schema');
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CREATE VIEW pg_stat_activity AS
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SELECT
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D.oid AS datid,
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D.datname AS datname,
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pg_stat_get_backend_pid(S.backendid) AS procpid,
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pg_stat_get_backend_userid(S.backendid) AS usesysid,
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U.rolname AS usename,
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pg_stat_get_backend_activity(S.backendid) AS current_query,
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pg_stat_get_backend_activity_start(S.backendid) AS query_start,
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pg_stat_get_backend_start(S.backendid) AS backend_start,
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pg_stat_get_backend_client_addr(S.backendid) AS client_addr,
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pg_stat_get_backend_client_port(S.backendid) AS client_port
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FROM pg_database D,
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(SELECT pg_stat_get_backend_idset() AS backendid) AS S,
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pg_authid U
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WHERE pg_stat_get_backend_dbid(S.backendid) = D.oid AND
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pg_stat_get_backend_userid(S.backendid) = U.oid;
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CREATE VIEW pg_stat_database AS
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SELECT
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D.oid AS datid,
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D.datname AS datname,
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pg_stat_get_db_numbackends(D.oid) AS numbackends,
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pg_stat_get_db_xact_commit(D.oid) AS xact_commit,
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pg_stat_get_db_xact_rollback(D.oid) AS xact_rollback,
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pg_stat_get_db_blocks_fetched(D.oid) -
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pg_stat_get_db_blocks_hit(D.oid) AS blks_read,
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pg_stat_get_db_blocks_hit(D.oid) AS blks_hit
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FROM pg_database D;
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--
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-- Fix up built-in functions that make use of OUT parameters.
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-- We can't currently fill these values in during bootstrap, because
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-- array_in doesn't work in bootstrap mode. Eventually that should be
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-- fixed, but for now the path of least resistance is to patch their
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-- pg_proc entries later during initdb.
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--
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UPDATE pg_proc SET
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proallargtypes = ARRAY['text'::regtype,
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'int8',
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'timestamptz',
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'timestamptz',
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'timestamptz',
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'timestamptz',
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'bool'],
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proargmodes = ARRAY['i'::"char", 'o', 'o', 'o', 'o', 'o', 'o'],
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proargnames = ARRAY['filename'::text, 'size', 'access', 'modification',
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'change', 'creation', 'isdir']
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WHERE oid = 'pg_stat_file(text)'::regprocedure;
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