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A materialized view has a rule just like a view and a heap and other physical properties like a table. The rule is only used to populate the table, references in queries refer to the materialized data. This is a minimal implementation, but should still be useful in many cases. Currently data is only populated "on demand" by the CREATE MATERIALIZED VIEW and REFRESH MATERIALIZED VIEW statements. It is expected that future releases will add incremental updates with various timings, and that a more refined concept of defining what is "fresh" data will be developed. At some point it may even be possible to have queries use a materialized in place of references to underlying tables, but that requires the other above-mentioned features to be working first. Much of the documentation work by Robert Haas. Review by Noah Misch, Thom Brown, Robert Haas, Marko Tiikkaja Security review by KaiGai Kohei, with a decision on how best to implement sepgsql still pending.
790 lines
28 KiB
PL/PgSQL
790 lines
28 KiB
PL/PgSQL
/*
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* PostgreSQL System Views
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*
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* Copyright (c) 1996-2013, PostgreSQL Global Development Group
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*
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* src/backend/catalog/system_views.sql
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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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rolreplication,
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rolconnlimit,
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'********'::text as rolpassword,
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rolvaliduntil,
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setconfig as rolconfig,
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pg_authid.oid
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FROM pg_authid LEFT JOIN pg_db_role_setting s
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ON (pg_authid.oid = setrole AND setdatabase = 0);
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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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pg_authid.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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rolreplication AS userepl,
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rolpassword AS passwd,
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rolvaliduntil::abstime AS valuntil,
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setconfig AS useconfig
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FROM pg_authid LEFT JOIN pg_db_role_setting s
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ON (pg_authid.oid = setrole AND setdatabase = 0)
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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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userepl,
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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.relhastriggers 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_matviews AS
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SELECT
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N.nspname AS schemaname,
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C.relname AS matviewname,
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pg_get_userbyid(C.relowner) AS matviewowner,
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T.spcname AS tablespace,
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C.relhasindex AS hasindexes,
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pg_relation_is_scannable(C.oid) AS isscannable,
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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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LEFT JOIN pg_tablespace T ON (T.oid = C.reltablespace)
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WHERE C.relkind = 'm';
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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 IN ('r', 'm') 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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stainherit AS inherited,
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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
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WHEN stakind1 = 1 THEN stavalues1
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WHEN stakind2 = 1 THEN stavalues2
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WHEN stakind3 = 1 THEN stavalues3
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WHEN stakind4 = 1 THEN stavalues4
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WHEN stakind5 = 1 THEN stavalues5
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END AS most_common_vals,
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CASE
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WHEN stakind1 = 1 THEN stanumbers1
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WHEN stakind2 = 1 THEN stanumbers2
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WHEN stakind3 = 1 THEN stanumbers3
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WHEN stakind4 = 1 THEN stanumbers4
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WHEN stakind5 = 1 THEN stanumbers5
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END AS most_common_freqs,
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CASE
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WHEN stakind1 = 2 THEN stavalues1
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WHEN stakind2 = 2 THEN stavalues2
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WHEN stakind3 = 2 THEN stavalues3
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WHEN stakind4 = 2 THEN stavalues4
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WHEN stakind5 = 2 THEN stavalues5
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END AS histogram_bounds,
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CASE
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WHEN stakind1 = 3 THEN stanumbers1[1]
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WHEN stakind2 = 3 THEN stanumbers2[1]
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WHEN stakind3 = 3 THEN stanumbers3[1]
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WHEN stakind4 = 3 THEN stanumbers4[1]
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WHEN stakind5 = 3 THEN stanumbers5[1]
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END AS correlation,
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CASE
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WHEN stakind1 = 4 THEN stavalues1
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WHEN stakind2 = 4 THEN stavalues2
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WHEN stakind3 = 4 THEN stavalues3
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WHEN stakind4 = 4 THEN stavalues4
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WHEN stakind5 = 4 THEN stavalues5
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END AS most_common_elems,
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CASE
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WHEN stakind1 = 4 THEN stanumbers1
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WHEN stakind2 = 4 THEN stanumbers2
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WHEN stakind3 = 4 THEN stanumbers3
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WHEN stakind4 = 4 THEN stanumbers4
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WHEN stakind5 = 4 THEN stanumbers5
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END AS most_common_elem_freqs,
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CASE
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WHEN stakind1 = 5 THEN stanumbers1
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WHEN stakind2 = 5 THEN stanumbers2
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WHEN stakind3 = 5 THEN stanumbers3
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WHEN stakind4 = 5 THEN stanumbers4
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WHEN stakind5 = 5 THEN stanumbers5
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END AS elem_count_histogram
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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 NOT attisdropped AND has_column_privilege(c.oid, a.attnum, '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 * FROM pg_lock_status() AS L;
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CREATE VIEW pg_cursors AS
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SELECT * FROM pg_cursor() AS C;
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CREATE VIEW pg_available_extensions AS
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SELECT E.name, E.default_version, X.extversion AS installed_version,
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E.comment
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FROM pg_available_extensions() AS E
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LEFT JOIN pg_extension AS X ON E.name = X.extname;
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CREATE VIEW pg_available_extension_versions AS
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SELECT E.name, E.version, (X.extname IS NOT NULL) AS installed,
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E.superuser, E.relocatable, E.schema, E.requires, E.comment
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FROM pg_available_extension_versions() AS E
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LEFT JOIN pg_extension AS X
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ON E.name = X.extname AND E.version = X.extversion;
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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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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 * FROM pg_prepared_statement() AS P;
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CREATE VIEW pg_seclabels AS
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SELECT
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l.objoid, l.classoid, l.objsubid,
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CASE WHEN rel.relkind = 'r' THEN 'table'::text
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WHEN rel.relkind = 'v' THEN 'view'::text
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WHEN rel.relkind = 'm' THEN 'materialized view'::text
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WHEN rel.relkind = 'S' THEN 'sequence'::text
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WHEN rel.relkind = 'f' THEN 'foreign table'::text END AS objtype,
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rel.relnamespace AS objnamespace,
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CASE WHEN pg_table_is_visible(rel.oid)
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THEN quote_ident(rel.relname)
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ELSE quote_ident(nsp.nspname) || '.' || quote_ident(rel.relname)
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END AS objname,
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l.provider, l.label
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FROM
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pg_seclabel l
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JOIN pg_class rel ON l.classoid = rel.tableoid AND l.objoid = rel.oid
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JOIN pg_namespace nsp ON rel.relnamespace = nsp.oid
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WHERE
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l.objsubid = 0
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UNION ALL
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SELECT
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l.objoid, l.classoid, l.objsubid,
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'column'::text AS objtype,
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rel.relnamespace AS objnamespace,
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CASE WHEN pg_table_is_visible(rel.oid)
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THEN quote_ident(rel.relname)
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ELSE quote_ident(nsp.nspname) || '.' || quote_ident(rel.relname)
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END || '.' || att.attname AS objname,
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l.provider, l.label
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FROM
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pg_seclabel l
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JOIN pg_class rel ON l.classoid = rel.tableoid AND l.objoid = rel.oid
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JOIN pg_attribute att
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ON rel.oid = att.attrelid AND l.objsubid = att.attnum
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JOIN pg_namespace nsp ON rel.relnamespace = nsp.oid
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WHERE
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l.objsubid != 0
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UNION ALL
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SELECT
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l.objoid, l.classoid, l.objsubid,
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CASE WHEN pro.proisagg = true THEN 'aggregate'::text
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WHEN pro.proisagg = false THEN 'function'::text
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END AS objtype,
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pro.pronamespace AS objnamespace,
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CASE WHEN pg_function_is_visible(pro.oid)
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THEN quote_ident(pro.proname)
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ELSE quote_ident(nsp.nspname) || '.' || quote_ident(pro.proname)
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END || '(' || pg_catalog.pg_get_function_arguments(pro.oid) || ')' AS objname,
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l.provider, l.label
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FROM
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pg_seclabel l
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JOIN pg_proc pro ON l.classoid = pro.tableoid AND l.objoid = pro.oid
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JOIN pg_namespace nsp ON pro.pronamespace = nsp.oid
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WHERE
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l.objsubid = 0
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UNION ALL
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SELECT
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l.objoid, l.classoid, l.objsubid,
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CASE WHEN typ.typtype = 'd' THEN 'domain'::text
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ELSE 'type'::text END AS objtype,
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typ.typnamespace AS objnamespace,
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CASE WHEN pg_type_is_visible(typ.oid)
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THEN quote_ident(typ.typname)
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ELSE quote_ident(nsp.nspname) || '.' || quote_ident(typ.typname)
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END AS objname,
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l.provider, l.label
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FROM
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pg_seclabel l
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JOIN pg_type typ ON l.classoid = typ.tableoid AND l.objoid = typ.oid
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JOIN pg_namespace nsp ON typ.typnamespace = nsp.oid
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WHERE
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l.objsubid = 0
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UNION ALL
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SELECT
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l.objoid, l.classoid, l.objsubid,
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'large object'::text AS objtype,
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NULL::oid AS objnamespace,
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l.objoid::text AS objname,
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l.provider, l.label
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FROM
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pg_seclabel l
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JOIN pg_largeobject_metadata lom ON l.objoid = lom.oid
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WHERE
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l.classoid = 'pg_catalog.pg_largeobject'::regclass AND l.objsubid = 0
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UNION ALL
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SELECT
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l.objoid, l.classoid, l.objsubid,
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'language'::text AS objtype,
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NULL::oid AS objnamespace,
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quote_ident(lan.lanname) AS objname,
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l.provider, l.label
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FROM
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pg_seclabel l
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JOIN pg_language lan ON l.classoid = lan.tableoid AND l.objoid = lan.oid
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WHERE
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l.objsubid = 0
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UNION ALL
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SELECT
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l.objoid, l.classoid, l.objsubid,
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'schema'::text AS objtype,
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nsp.oid AS objnamespace,
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quote_ident(nsp.nspname) AS objname,
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l.provider, l.label
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FROM
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pg_seclabel l
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JOIN pg_namespace nsp ON l.classoid = nsp.tableoid AND l.objoid = nsp.oid
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WHERE
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l.objsubid = 0
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UNION ALL
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SELECT
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l.objoid, l.classoid, l.objsubid,
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'event trigger'::text AS objtype,
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NULL::oid AS objnamespace,
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quote_ident(evt.evtname) AS objname,
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l.provider, l.label
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FROM
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pg_seclabel l
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JOIN pg_event_trigger evt ON l.classoid = evt.tableoid
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AND l.objoid = evt.oid
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WHERE
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l.objsubid = 0
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UNION ALL
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SELECT
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l.objoid, l.classoid, 0::int4 AS objsubid,
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'database'::text AS objtype,
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NULL::oid AS objnamespace,
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quote_ident(dat.datname) AS objname,
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l.provider, l.label
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FROM
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pg_shseclabel l
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JOIN pg_database dat ON l.classoid = dat.tableoid AND l.objoid = dat.oid
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UNION ALL
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SELECT
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l.objoid, l.classoid, 0::int4 AS objsubid,
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'tablespace'::text AS objtype,
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NULL::oid AS objnamespace,
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quote_ident(spc.spcname) AS objname,
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l.provider, l.label
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FROM
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pg_shseclabel l
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JOIN pg_tablespace spc ON l.classoid = spc.tableoid AND l.objoid = spc.oid
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UNION ALL
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SELECT
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l.objoid, l.classoid, 0::int4 AS objsubid,
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'role'::text AS objtype,
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NULL::oid AS objnamespace,
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quote_ident(rol.rolname) AS objname,
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l.provider, l.label
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FROM
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pg_shseclabel l
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JOIN pg_authid rol ON l.classoid = rol.tableoid AND l.objoid = rol.oid;
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CREATE VIEW pg_settings AS
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SELECT * FROM pg_show_all_settings() AS A;
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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_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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pg_stat_get_tuples_hot_updated(C.oid) AS n_tup_hot_upd,
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pg_stat_get_live_tuples(C.oid) AS n_live_tup,
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pg_stat_get_dead_tuples(C.oid) AS n_dead_tup,
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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_vacuum_count(C.oid) AS vacuum_count,
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pg_stat_get_autovacuum_count(C.oid) AS autovacuum_count,
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pg_stat_get_analyze_count(C.oid) AS analyze_count,
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pg_stat_get_autoanalyze_count(C.oid) AS autoanalyze_count
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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', 'm')
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GROUP BY C.oid, N.nspname, C.relname;
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CREATE VIEW pg_stat_xact_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_xact_numscans(C.oid) AS seq_scan,
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pg_stat_get_xact_tuples_returned(C.oid) AS seq_tup_read,
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sum(pg_stat_get_xact_numscans(I.indexrelid))::bigint AS idx_scan,
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sum(pg_stat_get_xact_tuples_fetched(I.indexrelid))::bigint +
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pg_stat_get_xact_tuples_fetched(C.oid) AS idx_tup_fetch,
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pg_stat_get_xact_tuples_inserted(C.oid) AS n_tup_ins,
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pg_stat_get_xact_tuples_updated(C.oid) AS n_tup_upd,
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pg_stat_get_xact_tuples_deleted(C.oid) AS n_tup_del,
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pg_stat_get_xact_tuples_hot_updated(C.oid) AS n_tup_hot_upd
|
|
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', 'm')
|
|
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_xact_sys_tables AS
|
|
SELECT * FROM pg_stat_xact_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_stat_xact_user_tables AS
|
|
SELECT * FROM pg_stat_xact_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', 'm')
|
|
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', 'm');
|
|
|
|
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', 'm');
|
|
|
|
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.pid,
|
|
S.usesysid,
|
|
U.rolname AS usename,
|
|
S.application_name,
|
|
S.client_addr,
|
|
S.client_hostname,
|
|
S.client_port,
|
|
S.backend_start,
|
|
S.xact_start,
|
|
S.query_start,
|
|
S.state_change,
|
|
S.waiting,
|
|
S.state,
|
|
S.query
|
|
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_replication AS
|
|
SELECT
|
|
S.pid,
|
|
S.usesysid,
|
|
U.rolname AS usename,
|
|
S.application_name,
|
|
S.client_addr,
|
|
S.client_hostname,
|
|
S.client_port,
|
|
S.backend_start,
|
|
W.state,
|
|
W.sent_location,
|
|
W.write_location,
|
|
W.flush_location,
|
|
W.replay_location,
|
|
W.sync_priority,
|
|
W.sync_state
|
|
FROM pg_stat_get_activity(NULL) AS S, pg_authid U,
|
|
pg_stat_get_wal_senders() AS W
|
|
WHERE S.usesysid = U.oid AND
|
|
S.pid = W.pid;
|
|
|
|
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,
|
|
pg_stat_get_db_conflict_all(D.oid) AS conflicts,
|
|
pg_stat_get_db_temp_files(D.oid) AS temp_files,
|
|
pg_stat_get_db_temp_bytes(D.oid) AS temp_bytes,
|
|
pg_stat_get_db_deadlocks(D.oid) AS deadlocks,
|
|
pg_stat_get_db_blk_read_time(D.oid) AS blk_read_time,
|
|
pg_stat_get_db_blk_write_time(D.oid) AS blk_write_time,
|
|
pg_stat_get_db_stat_reset_time(D.oid) AS stats_reset
|
|
FROM pg_database D;
|
|
|
|
CREATE VIEW pg_stat_database_conflicts AS
|
|
SELECT
|
|
D.oid AS datid,
|
|
D.datname AS datname,
|
|
pg_stat_get_db_conflict_tablespace(D.oid) AS confl_tablespace,
|
|
pg_stat_get_db_conflict_lock(D.oid) AS confl_lock,
|
|
pg_stat_get_db_conflict_snapshot(D.oid) AS confl_snapshot,
|
|
pg_stat_get_db_conflict_bufferpin(D.oid) AS confl_bufferpin,
|
|
pg_stat_get_db_conflict_startup_deadlock(D.oid) AS confl_deadlock
|
|
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_total_time(P.oid) AS total_time,
|
|
pg_stat_get_function_self_time(P.oid) 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_xact_user_functions AS
|
|
SELECT
|
|
P.oid AS funcid,
|
|
N.nspname AS schemaname,
|
|
P.proname AS funcname,
|
|
pg_stat_get_xact_function_calls(P.oid) AS calls,
|
|
pg_stat_get_xact_function_total_time(P.oid) AS total_time,
|
|
pg_stat_get_xact_function_self_time(P.oid) 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_xact_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_checkpoint_write_time() AS checkpoint_write_time,
|
|
pg_stat_get_checkpoint_sync_time() AS checkpoint_sync_time,
|
|
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_fsync_backend() AS buffers_backend_fsync,
|
|
pg_stat_get_buf_alloc() AS buffers_alloc,
|
|
pg_stat_get_bgwriter_stat_reset_time() AS stats_reset;
|
|
|
|
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';
|