From 580fb7fb41414da359133a0342505dd3c9a7756a Mon Sep 17 00:00:00 2001 From: Bruce Momjian 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; + +