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5ff4f39c0e
and create a new view pg_timezone_names that provides information about the zones known in the 'zic' database. Magnus Hagander, with some additional work by Tom Lane.
379 lines
14 KiB
SQL
379 lines
14 KiB
SQL
/*
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* PostgreSQL System Views
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*
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* Copyright (c) 1996-2006, PostgreSQL Global Development Group
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*
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* $PostgreSQL: pgsql/src/backend/catalog/system_views.sql,v 1.31 2006/09/16 20:14:33 tgl 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_cursors AS
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SELECT C.name, C.statement, C.is_holdable, C.is_binary,
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C.is_scrollable, C.creation_time
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FROM pg_cursor() AS C
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(name text, statement text, is_holdable boolean, is_binary boolean,
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is_scrollable boolean, creation_time timestamptz);
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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, unit 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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CREATE VIEW pg_timezone_abbrevs AS
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SELECT * FROM pg_timezone_abbrevs();
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CREATE VIEW pg_timezone_names AS
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SELECT * FROM pg_timezone_names();
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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_last_vacuum_time(C.oid) as last_vacuum,
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pg_stat_get_last_autovacuum_time(C.oid) as last_autovacuum,
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pg_stat_get_last_analyze_time(C.oid) as last_analyze,
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pg_stat_get_last_autoanalyze_time(C.oid) as last_autoanalyze,
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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_waiting(S.backendid) AS waiting,
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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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