diff --git a/src/backend/catalog/system_views.sql b/src/backend/catalog/system_views.sql
index 524468fddb721f2f826098da5054ddbafd3f91fc..525a8bbb4fa737c72166db42a98c6ecc271543db 100644
--- a/src/backend/catalog/system_views.sql
+++ b/src/backend/catalog/system_views.sql
@@ -1,270 +1,273 @@
-
-
-
-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;
-
-
+/*
+ * PostgreSQL System Views
+ *
+ * Copyright 1996-2003, PostgreSQL Global Development Group
+ *
+ * $Id: system_views.sql,v 1.2 2003/11/13 22:13:39 tgl Exp $
+ */
+
+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;