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/*
* PostgreSQL System Views
*
* Copyright (c) 1996-2009, PostgreSQL Global Development Group
*
* $PostgreSQL: pgsql/src/backend/catalog/system_views.sql,v 1.60 2009/04/07 00:31:26 tgl Exp $
*/
CREATE VIEW pg_roles AS
SELECT
rolname,
rolsuper,
rolinherit,
rolcreaterole,
rolcreatedb,
rolcatupdate,
rolcanlogin,
rolconnlimit,
'********'::text as rolpassword,
rolvaliduntil,
rolconfig,
oid
FROM pg_authid;
CREATE VIEW pg_shadow AS
SELECT
rolname AS usename,
oid AS usesysid,
rolcreatedb AS usecreatedb,
rolsuper AS usesuper,
rolcatupdate AS usecatupd,
rolpassword AS passwd,
rolvaliduntil::abstime AS valuntil,
rolconfig AS useconfig
FROM pg_authid
WHERE rolcanlogin;
REVOKE ALL on pg_shadow FROM public;
CREATE VIEW pg_group AS
SELECT
rolname AS groname,
oid AS grosysid,
ARRAY(SELECT member FROM pg_auth_members WHERE roleid = oid) AS grolist
FROM pg_authid
WHERE NOT rolcanlogin;
CREATE VIEW pg_user AS
SELECT
usename,
usesysid,
usecreatedb,
usesuper,
usecatupd,
'********'::text as passwd,
valuntil,
useconfig
FROM pg_shadow;
CREATE VIEW pg_rules AS
SELECT
N.nspname AS schemaname,
C.relname AS tablename,
R.rulename AS rulename,
pg_get_ruledef(R.oid) AS definition
FROM (pg_rewrite R JOIN pg_class C ON (C.oid = R.ev_class))
LEFT JOIN pg_namespace N ON (N.oid = C.relnamespace)
WHERE R.rulename != '_RETURN';
CREATE VIEW pg_views AS
SELECT
N.nspname AS schemaname,
C.relname AS viewname,
pg_get_userbyid(C.relowner) AS viewowner,
pg_get_viewdef(C.oid) AS definition
FROM pg_class C LEFT JOIN pg_namespace N ON (N.oid = C.relnamespace)
WHERE C.relkind = 'v';
CREATE VIEW pg_tables AS
SELECT
N.nspname AS schemaname,
C.relname AS tablename,
pg_get_userbyid(C.relowner) AS tableowner,
T.spcname AS tablespace,
C.relhasindex AS hasindexes,
C.relhasrules AS hasrules,
C.relhastriggers AS hastriggers
FROM pg_class C LEFT JOIN pg_namespace N ON (N.oid = C.relnamespace)
LEFT JOIN pg_tablespace T ON (T.oid = C.reltablespace)
WHERE C.relkind = 'r';
CREATE VIEW pg_indexes AS
SELECT
N.nspname AS schemaname,
C.relname AS tablename,
I.relname AS indexname,
T.spcname AS tablespace,
pg_get_indexdef(I.oid) AS indexdef
FROM pg_index X JOIN pg_class C ON (C.oid = X.indrelid)
JOIN pg_class I ON (I.oid = X.indexrelid)
LEFT JOIN pg_namespace N ON (N.oid = C.relnamespace)
LEFT JOIN pg_tablespace T ON (T.oid = I.reltablespace)
WHERE C.relkind = 'r' AND I.relkind = 'i';
CREATE VIEW pg_stats AS
SELECT
nspname AS schemaname,
relname AS tablename,
attname AS attname,
stanullfrac AS null_frac,
stawidth AS avg_width,
stadistinct AS n_distinct,
CASE
WHEN stakind1 IN (1, 4) THEN stavalues1
WHEN stakind2 IN (1, 4) THEN stavalues2
WHEN stakind3 IN (1, 4) THEN stavalues3
WHEN stakind4 IN (1, 4) THEN stavalues4
END AS most_common_vals,
CASE
WHEN stakind1 IN (1, 4) THEN stanumbers1
WHEN stakind2 IN (1, 4) THEN stanumbers2
WHEN stakind3 IN (1, 4) THEN stanumbers3
WHEN stakind4 IN (1, 4) THEN stanumbers4
END AS most_common_freqs,
CASE
WHEN stakind1 = 2 THEN stavalues1
WHEN stakind2 = 2 THEN stavalues2
WHEN stakind3 = 2 THEN stavalues3
WHEN stakind4 = 2 THEN stavalues4
END AS histogram_bounds,
CASE
WHEN stakind1 = 3 THEN stanumbers1[1]
WHEN stakind2 = 3 THEN stanumbers2[1]
WHEN stakind3 = 3 THEN stanumbers3[1]
WHEN stakind4 = 3 THEN stanumbers4[1]
END AS correlation
FROM pg_statistic s JOIN pg_class c ON (c.oid = s.starelid)
JOIN pg_attribute a ON (c.oid = attrelid AND attnum = s.staattnum)
LEFT JOIN pg_namespace n ON (n.oid = c.relnamespace)
WHERE NOT attisdropped AND has_column_privilege(c.oid, a.attnum, 'select');
REVOKE ALL on pg_statistic FROM public;
CREATE VIEW pg_locks AS
SELECT * FROM pg_lock_status() AS L;
CREATE VIEW pg_cursors AS
SELECT * FROM pg_cursor() AS C;
CREATE VIEW pg_prepared_xacts AS
SELECT P.transaction, P.gid, P.prepared,
U.rolname AS owner, D.datname AS database
FROM pg_prepared_xact() AS P
LEFT JOIN pg_authid U ON P.ownerid = U.oid
LEFT JOIN pg_database D ON P.dbid = D.oid;
CREATE VIEW pg_prepared_statements AS
SELECT * FROM pg_prepared_statement() AS P;
CREATE VIEW pg_settings AS
SELECT * FROM pg_show_all_settings() AS A;
CREATE RULE pg_settings_u AS
ON UPDATE TO pg_settings
WHERE new.name = old.name DO
SELECT set_config(old.name, new.setting, 'f');
CREATE RULE pg_settings_n AS
ON UPDATE TO pg_settings
DO INSTEAD NOTHING;
GRANT SELECT, UPDATE ON pg_settings TO PUBLIC;
CREATE VIEW pg_timezone_abbrevs AS
SELECT * FROM pg_timezone_abbrevs();
CREATE VIEW pg_timezone_names AS
SELECT * FROM pg_timezone_names();
-- Statistics views
CREATE VIEW pg_stat_all_tables AS
SELECT
C.oid AS relid,
N.nspname AS schemaname,
C.relname AS relname,
pg_stat_get_numscans(C.oid) AS seq_scan,
pg_stat_get_tuples_returned(C.oid) AS seq_tup_read,
sum(pg_stat_get_numscans(I.indexrelid))::bigint AS idx_scan,
sum(pg_stat_get_tuples_fetched(I.indexrelid))::bigint +
pg_stat_get_tuples_fetched(C.oid) AS idx_tup_fetch,
pg_stat_get_tuples_inserted(C.oid) AS n_tup_ins,
pg_stat_get_tuples_updated(C.oid) AS n_tup_upd,
pg_stat_get_tuples_deleted(C.oid) AS n_tup_del,
pg_stat_get_tuples_hot_updated(C.oid) AS n_tup_hot_upd,
pg_stat_get_live_tuples(C.oid) AS n_live_tup,
pg_stat_get_dead_tuples(C.oid) AS n_dead_tup,
pg_stat_get_last_vacuum_time(C.oid) as last_vacuum,
pg_stat_get_last_autovacuum_time(C.oid) as last_autovacuum,
pg_stat_get_last_analyze_time(C.oid) as last_analyze,
pg_stat_get_last_autoanalyze_time(C.oid) as last_autoanalyze
FROM pg_class C LEFT JOIN
pg_index I ON C.oid = I.indrelid
LEFT JOIN pg_namespace N ON (N.oid = C.relnamespace)
WHERE C.relkind IN ('r', 't')
GROUP BY C.oid, N.nspname, C.relname;
CREATE VIEW pg_stat_sys_tables AS
SELECT * FROM pg_stat_all_tables
WHERE schemaname IN ('pg_catalog', 'information_schema') OR
schemaname ~ '^pg_toast';
CREATE VIEW pg_stat_user_tables AS
SELECT * FROM pg_stat_all_tables
WHERE schemaname NOT IN ('pg_catalog', 'information_schema') AND
schemaname !~ '^pg_toast';
CREATE VIEW pg_statio_all_tables AS
SELECT
C.oid AS relid,
N.nspname AS schemaname,
C.relname AS relname,
pg_stat_get_blocks_fetched(C.oid) -
pg_stat_get_blocks_hit(C.oid) AS heap_blks_read,
pg_stat_get_blocks_hit(C.oid) AS heap_blks_hit,
sum(pg_stat_get_blocks_fetched(I.indexrelid) -
pg_stat_get_blocks_hit(I.indexrelid))::bigint AS idx_blks_read,
sum(pg_stat_get_blocks_hit(I.indexrelid))::bigint AS idx_blks_hit,
pg_stat_get_blocks_fetched(T.oid) -
pg_stat_get_blocks_hit(T.oid) AS toast_blks_read,
pg_stat_get_blocks_hit(T.oid) AS toast_blks_hit,
pg_stat_get_blocks_fetched(X.oid) -
pg_stat_get_blocks_hit(X.oid) AS tidx_blks_read,
pg_stat_get_blocks_hit(X.oid) AS tidx_blks_hit
FROM pg_class C LEFT JOIN
pg_index I ON C.oid = I.indrelid LEFT JOIN
pg_class T ON C.reltoastrelid = T.oid LEFT JOIN
pg_class X ON T.reltoastidxid = X.oid
LEFT JOIN pg_namespace N ON (N.oid = C.relnamespace)
WHERE C.relkind IN ('r', 't')
GROUP BY C.oid, N.nspname, C.relname, T.oid, X.oid;
CREATE VIEW pg_statio_sys_tables AS
SELECT * FROM pg_statio_all_tables
WHERE schemaname IN ('pg_catalog', 'information_schema') OR
schemaname ~ '^pg_toast';
CREATE VIEW pg_statio_user_tables AS
SELECT * FROM pg_statio_all_tables
WHERE schemaname NOT IN ('pg_catalog', 'information_schema') AND
schemaname !~ '^pg_toast';
CREATE VIEW pg_stat_all_indexes AS
SELECT
C.oid AS relid,
I.oid AS indexrelid,
N.nspname AS schemaname,
C.relname AS relname,
I.relname AS indexrelname,
pg_stat_get_numscans(I.oid) AS idx_scan,
pg_stat_get_tuples_returned(I.oid) AS idx_tup_read,
pg_stat_get_tuples_fetched(I.oid) AS idx_tup_fetch
FROM pg_class C JOIN
pg_index X ON C.oid = X.indrelid JOIN
pg_class I ON I.oid = X.indexrelid
LEFT JOIN pg_namespace N ON (N.oid = C.relnamespace)
WHERE C.relkind IN ('r', 't');
CREATE VIEW pg_stat_sys_indexes AS
SELECT * FROM pg_stat_all_indexes
WHERE schemaname IN ('pg_catalog', 'information_schema') OR
schemaname ~ '^pg_toast';
CREATE VIEW pg_stat_user_indexes AS
SELECT * FROM pg_stat_all_indexes
WHERE schemaname NOT IN ('pg_catalog', 'information_schema') AND
schemaname !~ '^pg_toast';
CREATE VIEW pg_statio_all_indexes AS
SELECT
C.oid AS relid,
I.oid AS indexrelid,
N.nspname AS schemaname,
C.relname AS relname,
I.relname AS indexrelname,
pg_stat_get_blocks_fetched(I.oid) -
pg_stat_get_blocks_hit(I.oid) AS idx_blks_read,
pg_stat_get_blocks_hit(I.oid) AS idx_blks_hit
FROM pg_class C JOIN
pg_index X ON C.oid = X.indrelid JOIN
pg_class I ON I.oid = X.indexrelid
LEFT JOIN pg_namespace N ON (N.oid = C.relnamespace)
WHERE C.relkind IN ('r', 't');
CREATE VIEW pg_statio_sys_indexes AS
SELECT * FROM pg_statio_all_indexes
WHERE schemaname IN ('pg_catalog', 'information_schema') OR
schemaname ~ '^pg_toast';
CREATE VIEW pg_statio_user_indexes AS
SELECT * FROM pg_statio_all_indexes
WHERE schemaname NOT IN ('pg_catalog', 'information_schema') AND
schemaname !~ '^pg_toast';
CREATE VIEW pg_statio_all_sequences AS
SELECT
C.oid AS relid,
N.nspname AS schemaname,
C.relname AS relname,
pg_stat_get_blocks_fetched(C.oid) -
pg_stat_get_blocks_hit(C.oid) AS blks_read,
pg_stat_get_blocks_hit(C.oid) AS blks_hit
FROM pg_class C
LEFT JOIN pg_namespace N ON (N.oid = C.relnamespace)
WHERE C.relkind = 'S';
CREATE VIEW pg_statio_sys_sequences AS
SELECT * FROM pg_statio_all_sequences
WHERE schemaname IN ('pg_catalog', 'information_schema') OR
schemaname ~ '^pg_toast';
CREATE VIEW pg_statio_user_sequences AS
SELECT * FROM pg_statio_all_sequences
WHERE schemaname NOT IN ('pg_catalog', 'information_schema') AND
schemaname !~ '^pg_toast';
CREATE VIEW pg_stat_activity AS
SELECT
S.datid AS datid,
D.datname AS datname,
S.procpid,
S.usesysid,
U.rolname AS usename,
S.current_query,
S.waiting,
S.xact_start,
S.query_start,
S.backend_start,
S.client_addr,
S.client_port
FROM pg_database D, pg_stat_get_activity(NULL) AS S, pg_authid U
WHERE S.datid = D.oid AND
S.usesysid = U.oid;
CREATE VIEW pg_stat_database AS
SELECT
D.oid AS datid,
D.datname AS datname,
pg_stat_get_db_numbackends(D.oid) AS numbackends,
pg_stat_get_db_xact_commit(D.oid) AS xact_commit,
pg_stat_get_db_xact_rollback(D.oid) AS xact_rollback,
pg_stat_get_db_blocks_fetched(D.oid) -
pg_stat_get_db_blocks_hit(D.oid) AS blks_read,
pg_stat_get_db_blocks_hit(D.oid) AS blks_hit,
pg_stat_get_db_tuples_returned(D.oid) AS tup_returned,
pg_stat_get_db_tuples_fetched(D.oid) AS tup_fetched,
pg_stat_get_db_tuples_inserted(D.oid) AS tup_inserted,
pg_stat_get_db_tuples_updated(D.oid) AS tup_updated,
pg_stat_get_db_tuples_deleted(D.oid) AS tup_deleted
FROM pg_database D;
CREATE VIEW pg_stat_user_functions AS
SELECT
P.oid AS funcid,
N.nspname AS schemaname,
P.proname AS funcname,
pg_stat_get_function_calls(P.oid) AS calls,
pg_stat_get_function_time(P.oid) / 1000 AS total_time,
pg_stat_get_function_self_time(P.oid) / 1000 AS self_time
FROM pg_proc P LEFT JOIN pg_namespace N ON (N.oid = P.pronamespace)
WHERE P.prolang != 12 -- fast check to eliminate built-in functions
AND pg_stat_get_function_calls(P.oid) IS NOT NULL;
CREATE VIEW pg_stat_bgwriter AS
SELECT
pg_stat_get_bgwriter_timed_checkpoints() AS checkpoints_timed,
pg_stat_get_bgwriter_requested_checkpoints() AS checkpoints_req,
pg_stat_get_bgwriter_buf_written_checkpoints() AS buffers_checkpoint,
pg_stat_get_bgwriter_buf_written_clean() AS buffers_clean,
pg_stat_get_bgwriter_maxwritten_clean() AS maxwritten_clean,
pg_stat_get_buf_written_backend() AS buffers_backend,
pg_stat_get_buf_alloc() AS buffers_alloc;
CREATE VIEW pg_user_mappings AS
SELECT
U.oid AS umid,
S.oid AS srvid,
S.srvname AS srvname,
U.umuser AS umuser,
CASE WHEN U.umuser = 0 THEN
'public'
ELSE
A.rolname
END AS usename,
CASE WHEN pg_has_role(S.srvowner, 'USAGE') OR has_server_privilege(S.oid, 'USAGE') THEN
U.umoptions
ELSE
NULL
END AS umoptions
FROM pg_user_mapping U
LEFT JOIN pg_authid A ON (A.oid = U.umuser) JOIN
pg_foreign_server S ON (U.umserver = S.oid);
REVOKE ALL on pg_user_mapping FROM public;
--
-- We have a few function definitions in here, too.
-- At some point there might be enough to justify breaking them out into
-- a separate "system_functions.sql" file.
--
-- Tsearch debug function. Defined here because it'd be pretty unwieldy
-- to put it into pg_proc.h
CREATE FUNCTION ts_debug(IN config regconfig, IN document text,
OUT alias text,
OUT description text,
OUT token text,
OUT dictionaries regdictionary[],
OUT dictionary regdictionary,
OUT lexemes text[])
RETURNS SETOF record AS
$$
SELECT
tt.alias AS alias,
tt.description AS description,
parse.token AS token,
ARRAY ( SELECT m.mapdict::pg_catalog.regdictionary
FROM pg_catalog.pg_ts_config_map AS m
WHERE m.mapcfg = $1 AND m.maptokentype = parse.tokid
ORDER BY m.mapseqno )
AS dictionaries,
( SELECT mapdict::pg_catalog.regdictionary
FROM pg_catalog.pg_ts_config_map AS m
WHERE m.mapcfg = $1 AND m.maptokentype = parse.tokid
ORDER BY pg_catalog.ts_lexize(mapdict, parse.token) IS NULL, m.mapseqno
LIMIT 1
) AS dictionary,
( SELECT pg_catalog.ts_lexize(mapdict, parse.token)
FROM pg_catalog.pg_ts_config_map AS m
WHERE m.mapcfg = $1 AND m.maptokentype = parse.tokid
ORDER BY pg_catalog.ts_lexize(mapdict, parse.token) IS NULL, m.mapseqno
LIMIT 1
) AS lexemes
FROM pg_catalog.ts_parse(
(SELECT cfgparser FROM pg_catalog.pg_ts_config WHERE oid = $1 ), $2
) AS parse,
pg_catalog.ts_token_type(
(SELECT cfgparser FROM pg_catalog.pg_ts_config WHERE oid = $1 )
) AS tt
WHERE tt.tokid = parse.tokid
$$
LANGUAGE SQL STRICT STABLE;
COMMENT ON FUNCTION ts_debug(regconfig,text) IS
'debug function for text search configuration';
CREATE FUNCTION ts_debug(IN document text,
OUT alias text,
OUT description text,
OUT token text,
OUT dictionaries regdictionary[],
OUT dictionary regdictionary,
OUT lexemes text[])
RETURNS SETOF record AS
$$
SELECT * FROM pg_catalog.ts_debug( pg_catalog.get_current_ts_config(), $1);
$$
LANGUAGE SQL STRICT STABLE;
COMMENT ON FUNCTION ts_debug(text) IS
'debug function for current text search configuration';
--
-- Redeclare built-in functions that need default values attached to their
-- arguments. It's impractical to set those up directly in pg_proc.h because
-- of the complexity and platform-dependency of the expression tree
-- representation. (Note that internal functions still have to have entries
-- in pg_proc.h; we are merely causing their proargnames and proargdefaults
-- to get filled in.)
--
CREATE OR REPLACE FUNCTION
pg_start_backup(label text, fast boolean DEFAULT false)
RETURNS text STRICT VOLATILE LANGUAGE internal AS 'pg_start_backup';