From 580fb7fb41414da359133a0342505dd3c9a7756a Mon Sep 17 00:00:00 2001
From: Bruce Momjian <bruce@momjian.us>
Date: Tue, 11 Nov 2003 02:00:00 +0000
Subject: [PATCH] Add system_views.sql to CVS.
---
src/backend/catalog/system_views.sql | 270 +++++++++++++++++++++++++++
1 file changed, 270 insertions(+)
create mode 100644 src/backend/catalog/system_views.sql
diff --git a/src/backend/catalog/system_views.sql b/src/backend/catalog/system_views.sql
new file mode 100644
index 0000000000..524468fddb
--- /dev/null
+++ b/src/backend/catalog/system_views.sql
@@ -0,0 +1,270 @@
+
+
+
+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,
+ C.relhasindex AS hasindexes,
+ C.relhasrules AS hasrules,
+ (C.reltriggers > 0) AS hastriggers
+ FROM pg_class C LEFT JOIN pg_namespace N ON (N.oid = C.relnamespace)
+ WHERE C.relkind = 'r';
+
+CREATE VIEW pg_indexes AS
+ SELECT
+ N.nspname AS schemaname,
+ C.relname AS tablename,
+ I.relname AS indexname,
+ 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)
+ 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 1
+ WHEN stakind1 THEN stavalues1
+ WHEN stakind2 THEN stavalues2
+ WHEN stakind3 THEN stavalues3
+ WHEN stakind4 THEN stavalues4
+ END AS most_common_vals,
+ CASE 1
+ WHEN stakind1 THEN stanumbers1
+ WHEN stakind2 THEN stanumbers2
+ WHEN stakind3 THEN stanumbers3
+ WHEN stakind4 THEN stanumbers4
+ END AS most_common_freqs,
+ CASE 2
+ WHEN stakind1 THEN stavalues1
+ WHEN stakind2 THEN stavalues2
+ WHEN stakind3 THEN stavalues3
+ WHEN stakind4 THEN stavalues4
+ END AS histogram_bounds,
+ CASE 3
+ WHEN stakind1 THEN stanumbers1[1]
+ WHEN stakind2 THEN stanumbers2[1]
+ WHEN stakind3 THEN stanumbers3[1]
+ WHEN stakind4 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 has_table_privilege(c.oid, 'select');
+
+REVOKE ALL on pg_statistic FROM public;
+
+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)) AS idx_scan,
+ sum(pg_stat_get_tuples_fetched(I.indexrelid)) 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
+ 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 = 'r'
+ 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', 'pg_toast');
+
+CREATE VIEW pg_stat_user_tables AS
+ SELECT * FROM pg_stat_all_tables
+ WHERE schemaname NOT IN ('pg_catalog', '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)) AS idx_blks_read,
+ sum(pg_stat_get_blocks_hit(I.indexrelid)) 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 = 'r'
+ 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', 'pg_toast');
+
+CREATE VIEW pg_statio_user_tables AS
+ SELECT * FROM pg_statio_all_tables
+ WHERE schemaname NOT IN ('pg_catalog', '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 = 'r';
+
+CREATE VIEW pg_stat_sys_indexes AS
+ SELECT * FROM pg_stat_all_indexes
+ WHERE schemaname IN ('pg_catalog', 'pg_toast');
+
+CREATE VIEW pg_stat_user_indexes AS
+ SELECT * FROM pg_stat_all_indexes
+ WHERE schemaname NOT IN ('pg_catalog', '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 = 'r';
+
+CREATE VIEW pg_statio_sys_indexes AS
+ SELECT * FROM pg_statio_all_indexes
+ WHERE schemaname IN ('pg_catalog', 'pg_toast');
+
+CREATE VIEW pg_statio_user_indexes AS
+ SELECT * FROM pg_statio_all_indexes
+ WHERE schemaname NOT IN ('pg_catalog', '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', 'pg_toast');
+
+CREATE VIEW pg_statio_user_sequences AS
+ SELECT * FROM pg_statio_all_sequences
+ WHERE schemaname NOT IN ('pg_catalog', 'pg_toast');
+
+CREATE VIEW pg_stat_activity AS
+ SELECT
+ D.oid AS datid,
+ D.datname AS datname,
+ pg_stat_get_backend_pid(S.backendid) AS procpid,
+ pg_stat_get_backend_userid(S.backendid) AS usesysid,
+ U.usename AS usename,
+ pg_stat_get_backend_activity(S.backendid) AS current_query,
+ pg_stat_get_backend_activity_start(S.backendid) AS query_start
+ FROM pg_database D,
+ (SELECT pg_stat_get_backend_idset() AS backendid) AS S,
+ pg_shadow U
+ WHERE pg_stat_get_backend_dbid(S.backendid) = D.oid AND
+ pg_stat_get_backend_userid(S.backendid) = U.usesysid;
+
+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
+ FROM pg_database D;
+
+CREATE VIEW pg_locks AS
+ SELECT *
+ FROM pg_lock_status() AS L(relation oid, database oid,
+ transaction xid, pid int4, mode text, granted boolean);
+
+CREATE VIEW pg_settings AS
+ SELECT *
+ FROM pg_show_all_settings() AS A
+ (name text, setting text, context text, vartype text,
+ source text, min_val text, max_val text);
+
+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;
+
+
--
2.24.1