Index: src/backend/catalog/system_views.sql =================================================================== RCS file: /cvsroot/pgsql/src/backend/catalog/system_views.sql,v retrieving revision 1.36 diff -c -r1.36 system_views.sql *** src/backend/catalog/system_views.sql 16 Mar 2007 17:57:36 -0000 1.36 --- src/backend/catalog/system_views.sql 29 Mar 2007 13:21:54 -0000 *************** *** 364,366 **** --- 364,376 ---- 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_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_lru() AS buffers_lru, + pg_stat_get_bgwriter_buf_written_all() AS buffers_all, + pg_stat_get_bgwriter_maxwritten_lru() AS maxwritten_lru, + pg_stat_get_bgwriter_maxwritten_all() AS maxwritten_all; Index: src/backend/postmaster/bgwriter.c =================================================================== RCS file: /cvsroot/pgsql/src/backend/postmaster/bgwriter.c,v retrieving revision 1.36 diff -c -r1.36 bgwriter.c *** src/backend/postmaster/bgwriter.c 17 Jan 2007 16:25:01 -0000 1.36 --- src/backend/postmaster/bgwriter.c 29 Mar 2007 13:21:57 -0000 *************** *** 50,55 **** --- 50,56 ---- #include "access/xlog_internal.h" #include "libpq/pqsignal.h" #include "miscadmin.h" + #include "pgstat.h" #include "postmaster/bgwriter.h" #include "storage/fd.h" #include "storage/freespace.h" *************** *** 125,130 **** --- 126,138 ---- static BgWriterShmemStruct *BgWriterShmem; /* + * BgWriter statistic counters, as sent to the stats collector + * Stored directly in a stats message structure so it can be sent + * without nedeing to copy things around. + */ + PgStat_MsgBgWriter BgWriterStats; + + /* * GUC parameters */ int BgWriterDelay = 200; *************** *** 243,248 **** --- 251,261 ---- MemoryContextSwitchTo(bgwriter_context); /* + * Initialize statistics counters to zero + */ + memset(&BgWriterStats, 0, sizeof(BgWriterStats)); + + /* * If an exception is encountered, processing resumes here. * * See notes in postgres.c about the design of this coding. *************** *** 354,359 **** --- 367,373 ---- checkpoint_requested = false; do_checkpoint = true; force_checkpoint = true; + BgWriterStats.m_requested_checkpoints++; } if (shutdown_requested) { *************** *** 376,382 **** --- 390,400 ---- now = time(NULL); elapsed_secs = now - last_checkpoint_time; if (elapsed_secs >= CheckPointTimeout) + { do_checkpoint = true; + if (!force_checkpoint) + BgWriterStats.m_timed_checkpoints++; + } /* * Do a checkpoint if requested, otherwise do one cycle of *************** *** 474,479 **** --- 492,502 ---- } /* + * Send of activity statistics to the stats collector + */ + pgstat_send_bgwriter(); + + /* * Nap for the configured time, or sleep for 10 seconds if there is no * bgwriter activity configured. * *************** *** 789,791 **** --- 812,815 ---- END_CRIT_SECTION(); } + Index: src/backend/postmaster/pgstat.c =================================================================== RCS file: /cvsroot/pgsql/src/backend/postmaster/pgstat.c,v retrieving revision 1.151 diff -c -r1.151 pgstat.c *** src/backend/postmaster/pgstat.c 28 Mar 2007 22:17:12 -0000 1.151 --- src/backend/postmaster/pgstat.c 29 Mar 2007 13:22:00 -0000 *************** *** 135,140 **** --- 135,150 ---- static PgBackendStatus *localBackendStatusTable = NULL; static int localNumBackends = 0; + /* + * BgWriter global statistics counters + */ + extern PgStat_MsgBgWriter BgWriterStats; + + /* + * Cluster wide statistics, kept in the stats process + */ + static PgStat_GlobalStats globalStats; + static volatile bool need_exit = false; static volatile bool need_statwrite = false; *************** *** 171,176 **** --- 181,187 ---- static void pgstat_recv_autovac(PgStat_MsgAutovacStart *msg, int len); static void pgstat_recv_vacuum(PgStat_MsgVacuum *msg, int len); static void pgstat_recv_analyze(PgStat_MsgAnalyze *msg, int len); + static void pgstat_recv_bgwriter(PgStat_MsgBgWriter *msg, int len); /* ------------------------------------------------------------ *************** *** 1288,1293 **** --- 1299,1320 ---- return localNumBackends; } + /* + * --------- + * pgstat_fetch_global() - + * + * Support function for the SQL-callable pgstat* functions. Returns + * a pointer to the global statistics struct. + * --------- + */ + PgStat_GlobalStats * + pgstat_fetch_global(void) + { + backend_read_statsfile(); + + return &globalStats; + } + /* ------------------------------------------------------------ * Functions for management of the shared-memory PgBackendStatus array *************** *** 1646,1651 **** --- 1673,1713 ---- #endif } + /* ---------- + * pgstat_send_bgwriter() - + * + * Send bgwriter statistics + */ + void + pgstat_send_bgwriter(void) + { + /* + * This function can be called even if nothing at all happende. + * In this case, avoid sending a completely empty message to + * the stats collector. + */ + if (BgWriterStats.m_timed_checkpoints == 0 && + BgWriterStats.m_requested_checkpoints == 0 && + BgWriterStats.m_buf_written_checkpoints == 0 && + BgWriterStats.m_buf_written_lru == 0 && + BgWriterStats.m_buf_written_all == 0 && + BgWriterStats.m_maxwritten_lru == 0 && + BgWriterStats.m_maxwritten_all == 0) + return; + + /* + * Prepare and send off the message + */ + pgstat_setheader(&BgWriterStats.m_hdr, PGSTAT_MTYPE_BGWRITER); + pgstat_send(&BgWriterStats, sizeof(BgWriterStats)); + + /* + * Clear out the bgwriter statistics buffer, so it can be + * re-used. + */ + memset(&BgWriterStats, 0, sizeof(BgWriterStats)); + } + /* ---------- * PgstatCollectorMain() - *************** *** 1892,1897 **** --- 1954,1963 ---- pgstat_recv_analyze((PgStat_MsgAnalyze *) &msg, len); break; + case PGSTAT_MTYPE_BGWRITER: + pgstat_recv_bgwriter((PgStat_MsgBgWriter *) &msg, len); + break; + default: break; } *************** *** 2031,2036 **** --- 2097,2107 ---- fwrite(&format_id, sizeof(format_id), 1, fpout); /* + * Write global stats + */ + fwrite(&globalStats, sizeof(globalStats), 1, fpout); + + /* * Walk through the database table. */ hash_seq_init(&hstat, pgStatDBHash); *************** *** 2133,2138 **** --- 2204,2215 ---- HASH_ELEM | HASH_FUNCTION | HASH_CONTEXT); /* + * Clear out global statistics in case they can't be loaded from an existing + * statsfile + */ + memset(&globalStats, 0, sizeof(globalStats)); + + /* * Try to open the status file. If it doesn't exist, the backends simply * return zero for anything and the collector simply starts from scratch * with empty counters. *************** *** 2152,2157 **** --- 2229,2244 ---- } /* + * Read global stats + */ + if (fread(&globalStats, 1, sizeof(globalStats), fpin) != sizeof(globalStats)) + { + ereport(pgStatRunningInCollector ? LOG : WARNING, + (errmsg("corrupted pgstat.stat file"))); + goto done; + } + + /* * We found an existing collector stats file. Read it and put all the * hashtable entries into place. */ *************** *** 2656,2658 **** --- 2743,2764 ---- tabentry->n_dead_tuples = msg->m_dead_tuples; tabentry->last_anl_tuples = msg->m_live_tuples + msg->m_dead_tuples; } + + + /* ---------- + * pgstat_recv_bgwriter() - + * + * Process a BGWRITER message. + * ---------- + */ + static void + pgstat_recv_bgwriter(PgStat_MsgBgWriter *msg, int len) + { + globalStats.timed_checkpoints += msg->m_timed_checkpoints; + globalStats.requested_checkpoints += msg->m_requested_checkpoints; + globalStats.buf_written_checkpoints += msg->m_buf_written_checkpoints; + globalStats.buf_written_lru += msg->m_buf_written_lru; + globalStats.buf_written_all += msg->m_buf_written_all; + globalStats.maxwritten_lru += msg->m_maxwritten_lru; + globalStats.maxwritten_all += msg->m_maxwritten_all; + } Index: src/backend/storage/buffer/bufmgr.c =================================================================== RCS file: /cvsroot/pgsql/src/backend/storage/buffer/bufmgr.c,v retrieving revision 1.215 diff -c -r1.215 bufmgr.c *** src/backend/storage/buffer/bufmgr.c 1 Feb 2007 19:10:27 -0000 1.215 --- src/backend/storage/buffer/bufmgr.c 29 Mar 2007 13:22:02 -0000 *************** *** 72,78 **** * bufmgr */ long NDirectFileWrite; /* e.g., I/O in psort and hashjoin. */ - /* local state for StartBufferIO and related functions */ static volatile BufferDesc *InProgressBuf = NULL; static bool IsForInput; --- 72,77 ---- *************** *** 80,85 **** --- 79,88 ---- /* local state for LockBufferForCleanup */ static volatile BufferDesc *PinCountWaitBuf = NULL; + /* statistics for bgwriter. The contents of this variable only makes + * sense in the bgwriter */ + extern PgStat_MsgBgWriter BgWriterStats; + static bool PinBuffer(volatile BufferDesc *buf); static void PinBuffer_Locked(volatile BufferDesc *buf); *************** *** 964,969 **** --- 968,975 ---- { if (SyncOneBuffer(buf_id, false)) { + BgWriterStats.m_buf_written_checkpoints++; + /* * If in bgwriter, absorb pending fsync requests after each * WRITES_PER_ABSORB write operations, to prevent overflow of the *************** *** 1027,1035 **** --- 1033,1045 ---- if (SyncOneBuffer(buf_id1, false)) { if (++num_written >= bgwriter_all_maxpages) + { + BgWriterStats.m_maxwritten_all++; break; + } } } + BgWriterStats.m_buf_written_all += num_written; } /* *************** *** 1048,1058 **** --- 1058,1072 ---- if (SyncOneBuffer(buf_id2, true)) { if (++num_written >= bgwriter_lru_maxpages) + { + BgWriterStats.m_maxwritten_lru++; break; + } } if (++buf_id2 >= NBuffers) buf_id2 = 0; } + BgWriterStats.m_buf_written_lru += num_written; } } Index: src/backend/utils/adt/pgstatfuncs.c =================================================================== RCS file: /cvsroot/pgsql/src/backend/utils/adt/pgstatfuncs.c,v retrieving revision 1.40 diff -c -r1.40 pgstatfuncs.c *** src/backend/utils/adt/pgstatfuncs.c 16 Mar 2007 17:57:36 -0000 1.40 --- src/backend/utils/adt/pgstatfuncs.c 29 Mar 2007 13:22:03 -0000 *************** *** 61,69 **** --- 61,79 ---- extern Datum pg_stat_get_db_tuples_updated(PG_FUNCTION_ARGS); extern Datum pg_stat_get_db_tuples_deleted(PG_FUNCTION_ARGS); + extern Datum pg_stat_get_bgwriter_timed_checkpoints(PG_FUNCTION_ARGS); + extern Datum pg_stat_get_bgwriter_requested_checkpoints(PG_FUNCTION_ARGS); + extern Datum pg_stat_get_bgwriter_buf_written_checkpoints(PG_FUNCTION_ARGS); + extern Datum pg_stat_get_bgwriter_buf_written_lru(PG_FUNCTION_ARGS); + extern Datum pg_stat_get_bgwriter_buf_written_all(PG_FUNCTION_ARGS); + extern Datum pg_stat_get_bgwriter_maxwritten_lru(PG_FUNCTION_ARGS); + extern Datum pg_stat_get_bgwriter_maxwritten_all(PG_FUNCTION_ARGS); + extern Datum pg_stat_clear_snapshot(PG_FUNCTION_ARGS); extern Datum pg_stat_reset(PG_FUNCTION_ARGS); + /* globals defined in bgwriter.c */ + extern PgStat_MsgBgWriter bgwriterStats; Datum pg_stat_get_numscans(PG_FUNCTION_ARGS) *************** *** 756,761 **** --- 766,813 ---- PG_RETURN_INT64(result); } + Datum + pg_stat_get_bgwriter_timed_checkpoints(PG_FUNCTION_ARGS) + { + PG_RETURN_INT64(pgstat_fetch_global()->timed_checkpoints); + } + + Datum + pg_stat_get_bgwriter_requested_checkpoints(PG_FUNCTION_ARGS) + { + PG_RETURN_INT64(pgstat_fetch_global()->requested_checkpoints); + } + + Datum + pg_stat_get_bgwriter_buf_written_checkpoints(PG_FUNCTION_ARGS) + { + PG_RETURN_INT64(pgstat_fetch_global()->buf_written_checkpoints); + } + + Datum + pg_stat_get_bgwriter_buf_written_lru(PG_FUNCTION_ARGS) + { + PG_RETURN_INT64(pgstat_fetch_global()->buf_written_lru); + } + + Datum + pg_stat_get_bgwriter_buf_written_all(PG_FUNCTION_ARGS) + { + PG_RETURN_INT64(pgstat_fetch_global()->buf_written_all); + } + + Datum + pg_stat_get_bgwriter_maxwritten_lru(PG_FUNCTION_ARGS) + { + PG_RETURN_INT64(pgstat_fetch_global()->maxwritten_lru); + } + + Datum + pg_stat_get_bgwriter_maxwritten_all(PG_FUNCTION_ARGS) + { + PG_RETURN_INT64(pgstat_fetch_global()->maxwritten_all); + } + /* Discard the active statistics snapshot */ Datum Index: src/include/pgstat.h =================================================================== RCS file: /cvsroot/pgsql/src/include/pgstat.h,v retrieving revision 1.56 diff -c -r1.56 pgstat.h *** src/include/pgstat.h 22 Mar 2007 19:53:31 -0000 1.56 --- src/include/pgstat.h 29 Mar 2007 13:22:05 -0000 *************** *** 30,36 **** PGSTAT_MTYPE_RESETCOUNTER, PGSTAT_MTYPE_AUTOVAC_START, PGSTAT_MTYPE_VACUUM, ! PGSTAT_MTYPE_ANALYZE } StatMsgType; /* ---------- --- 30,37 ---- PGSTAT_MTYPE_RESETCOUNTER, PGSTAT_MTYPE_AUTOVAC_START, PGSTAT_MTYPE_VACUUM, ! PGSTAT_MTYPE_ANALYZE, ! PGSTAT_MTYPE_BGWRITER } StatMsgType; /* ---------- *************** *** 213,218 **** --- 214,237 ---- /* ---------- + * PgStat_MsgBgWriter Sent by the bgwriter to update statistics. + * ---------- + */ + typedef struct PgStat_MsgBgWriter + { + PgStat_MsgHdr m_hdr; + + PgStat_Counter m_timed_checkpoints; + PgStat_Counter m_requested_checkpoints; + PgStat_Counter m_buf_written_checkpoints; + PgStat_Counter m_buf_written_lru; + PgStat_Counter m_buf_written_all; + PgStat_Counter m_maxwritten_lru; + PgStat_Counter m_maxwritten_all; + } PgStat_MsgBgWriter; + + + /* ---------- * PgStat_Msg Union over all possible messages. * ---------- */ *************** *** 227,232 **** --- 246,252 ---- PgStat_MsgAutovacStart msg_autovacuum; PgStat_MsgVacuum msg_vacuum; PgStat_MsgAnalyze msg_analyze; + PgStat_MsgBgWriter msg_bgwriter; } PgStat_Msg; *************** *** 297,302 **** --- 317,337 ---- } PgStat_StatTabEntry; + /* + * Global statistics kept in the stats collector + */ + typedef struct PgStat_GlobalStats + { + PgStat_Counter timed_checkpoints; + PgStat_Counter requested_checkpoints; + PgStat_Counter buf_written_checkpoints; + PgStat_Counter buf_written_lru; + PgStat_Counter buf_written_all; + PgStat_Counter maxwritten_lru; + PgStat_Counter maxwritten_all; + } PgStat_GlobalStats; + + /* ---------- * Shared-memory data structures * ---------- *************** *** 478,483 **** --- 513,519 ---- extern void pgstat_count_xact_commit(void); extern void pgstat_count_xact_rollback(void); + extern void pgstat_send_bgwriter(void); /* ---------- * Support functions for the SQL-callable functions to *************** *** 488,492 **** --- 524,529 ---- extern PgStat_StatTabEntry *pgstat_fetch_stat_tabentry(Oid relid); extern PgBackendStatus *pgstat_fetch_stat_beentry(int beid); extern int pgstat_fetch_stat_numbackends(void); + extern PgStat_GlobalStats *pgstat_fetch_global(void); #endif /* PGSTAT_H */ Index: src/include/catalog/pg_proc.h =================================================================== RCS file: /cvsroot/pgsql/src/include/catalog/pg_proc.h,v retrieving revision 1.451 diff -c -r1.451 pg_proc.h *** src/include/catalog/pg_proc.h 27 Mar 2007 23:21:11 -0000 1.451 --- src/include/catalog/pg_proc.h 29 Mar 2007 13:22:10 -0000 *************** *** 2987,2992 **** --- 2987,3006 ---- DESCR("Statistics: Tuples updated in database"); DATA(insert OID = 2762 ( pg_stat_get_db_tuples_deleted PGNSP PGUID 12 1 0 f f t f s 1 20 "26" _null_ _null_ _null_ pg_stat_get_db_tuples_deleted - _null_ )); DESCR("Statistics: Tuples deleted in database"); + DATA(insert OID = 2769 ( pg_stat_get_bgwriter_timed_checkpoints PGNSP PGUID 12 1 0 f f t f s 0 20 "" _null_ _null_ _null_ pg_stat_get_bgwriter_timed_checkpoints - _null_ )); + DESCR("Statistics: Number of timed checkpoints started by the bgwriter"); + DATA(insert OID = 2770 ( pg_stat_get_bgwriter_requested_checkpoints PGNSP PGUID 12 1 0 f f t f s 0 20 "" _null_ _null_ _null_ pg_stat_get_bgwriter_requested_checkpoints - _null_ )); + DESCR("Statistics: Number of backend requested checkpoints started by the bgwriter"); + DATA(insert OID = 2771 ( pg_stat_get_bgwriter_buf_written_checkpoints PGNSP PGUID 12 1 0 f f t f s 0 20 "" _null_ _null_ _null_ pg_stat_get_bgwriter_buf_written_checkpoints - _null_ )); + DESCR("Statistics: Number of buffers written by the bgwriter during checkpoints"); + DATA(insert OID = 2772 ( pg_stat_get_bgwriter_buf_written_lru PGNSP PGUID 12 1 0 f f t f s 0 20 "" _null_ _null_ _null_ pg_stat_get_bgwriter_buf_written_lru - _null_ )); + DESCR("Statistics: Number of buffers written by the bgwriter during LRU scans"); + DATA(insert OID = 2773 ( pg_stat_get_bgwriter_buf_written_all PGNSP PGUID 12 1 0 f f t f s 0 20 "" _null_ _null_ _null_ pg_stat_get_bgwriter_buf_written_all - _null_ )); + DESCR("Statistics: Number of buffers written by the bgwriter during all-buffer scans"); + DATA(insert OID = 2774 ( pg_stat_get_bgwriter_maxwritten_lru PGNSP PGUID 12 1 0 f f t f s 0 20 "" _null_ _null_ _null_ pg_stat_get_bgwriter_maxwritten_lru - _null_ )); + DESCR("Statistics: Number of times the bgwriter stopped processing when it had written too many buffers during LRU scans"); + DATA(insert OID = 2775 ( pg_stat_get_bgwriter_maxwritten_all PGNSP PGUID 12 1 0 f f t f s 0 20 "" _null_ _null_ _null_ pg_stat_get_bgwriter_maxwritten_all - _null_ )); + DESCR("Statistics: Number of times the bgwriter stopped processing when it had written too many buffers during all-buffer scans"); DATA(insert OID = 2230 ( pg_stat_clear_snapshot PGNSP PGUID 12 1 0 f f f f v 0 2278 "" _null_ _null_ _null_ pg_stat_clear_snapshot - _null_ )); DESCR("Statistics: Discard current transaction's statistics snapshot"); DATA(insert OID = 2274 ( pg_stat_reset PGNSP PGUID 12 1 0 f f f f v 0 2278 "" _null_ _null_ _null_ pg_stat_reset - _null_ )); Index: src/test/regress/expected/rules.out =================================================================== RCS file: /cvsroot/pgsql/src/test/regress/expected/rules.out,v retrieving revision 1.126 diff -c -r1.126 rules.out *** src/test/regress/expected/rules.out 16 Mar 2007 17:57:36 -0000 1.126 --- src/test/regress/expected/rules.out 29 Mar 2007 13:22:12 -0000 *************** *** 1292,1297 **** --- 1292,1298 ---- pg_stat_activity | SELECT d.oid AS datid, d.datname, pg_stat_get_backend_pid(s.backendid) AS procpid, pg_stat_get_backend_userid(s.backendid) AS usesysid, u.rolname AS usename, pg_stat_get_backend_activity(s.backendid) AS current_query, pg_stat_get_backend_waiting(s.backendid) AS waiting, pg_stat_get_backend_txn_start(s.backendid) AS txn_start, pg_stat_get_backend_activity_start(s.backendid) AS query_start, pg_stat_get_backend_start(s.backendid) AS backend_start, pg_stat_get_backend_client_addr(s.backendid) AS client_addr, pg_stat_get_backend_client_port(s.backendid) AS client_port FROM pg_database d, (SELECT pg_stat_get_backend_idset() AS backendid) s, pg_authid u WHERE ((pg_stat_get_backend_dbid(s.backendid) = d.oid) AND (pg_stat_get_backend_userid(s.backendid) = u.oid)); pg_stat_all_indexes | SELECT c.oid AS relid, i.oid AS indexrelid, n.nspname AS schemaname, c.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 = ANY (ARRAY['r'::"char", 't'::"char"])); pg_stat_all_tables | SELECT c.oid AS relid, n.nspname AS schemaname, c.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_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 = ANY (ARRAY['r'::"char", 't'::"char"])) GROUP BY c.oid, n.nspname, c.relname; + pg_stat_bgwriter | 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_lru() AS buffers_lru, pg_stat_get_bgwriter_buf_written_all() AS buffers_all, pg_stat_get_bgwriter_maxwritten_lru() AS maxwritten_lru, pg_stat_get_bgwriter_maxwritten_all() AS maxwritten_all; pg_stat_database | SELECT d.oid AS datid, d.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; pg_stat_sys_indexes | SELECT pg_stat_all_indexes.relid, pg_stat_all_indexes.indexrelid, pg_stat_all_indexes.schemaname, pg_stat_all_indexes.relname, pg_stat_all_indexes.indexrelname, pg_stat_all_indexes.idx_scan, pg_stat_all_indexes.idx_tup_read, pg_stat_all_indexes.idx_tup_fetch FROM pg_stat_all_indexes WHERE (pg_stat_all_indexes.schemaname = ANY (ARRAY['pg_catalog'::"name", 'pg_toast'::"name", 'information_schema'::"name"])); pg_stat_sys_tables | SELECT pg_stat_all_tables.relid, pg_stat_all_tables.schemaname, pg_stat_all_tables.relname, pg_stat_all_tables.seq_scan, pg_stat_all_tables.seq_tup_read, pg_stat_all_tables.idx_scan, pg_stat_all_tables.idx_tup_fetch, pg_stat_all_tables.n_tup_ins, pg_stat_all_tables.n_tup_upd, pg_stat_all_tables.n_tup_del, pg_stat_all_tables.n_live_tup, pg_stat_all_tables.n_dead_tup, pg_stat_all_tables.last_vacuum, pg_stat_all_tables.last_autovacuum, pg_stat_all_tables.last_analyze, pg_stat_all_tables.last_autoanalyze FROM pg_stat_all_tables WHERE (pg_stat_all_tables.schemaname = ANY (ARRAY['pg_catalog'::"name", 'pg_toast'::"name", 'information_schema'::"name"])); *************** *** 1326,1332 **** shoelace_obsolete | SELECT shoelace.sl_name, shoelace.sl_avail, shoelace.sl_color, shoelace.sl_len, shoelace.sl_unit, shoelace.sl_len_cm FROM shoelace WHERE (NOT (EXISTS (SELECT shoe.shoename FROM shoe WHERE (shoe.slcolor = shoelace.sl_color)))); street | SELECT r."name", r.thepath, c.cname FROM ONLY road r, real_city c WHERE (c.outline ## r.thepath); toyemp | SELECT emp."name", emp.age, emp."location", (12 * emp.salary) AS annualsal FROM emp; ! (48 rows) SELECT tablename, rulename, definition FROM pg_rules ORDER BY tablename, rulename; --- 1327,1333 ---- shoelace_obsolete | SELECT shoelace.sl_name, shoelace.sl_avail, shoelace.sl_color, shoelace.sl_len, shoelace.sl_unit, shoelace.sl_len_cm FROM shoelace WHERE (NOT (EXISTS (SELECT shoe.shoename FROM shoe WHERE (shoe.slcolor = shoelace.sl_color)))); street | SELECT r."name", r.thepath, c.cname FROM ONLY road r, real_city c WHERE (c.outline ## r.thepath); toyemp | SELECT emp."name", emp.age, emp."location", (12 * emp.salary) AS annualsal FROM emp; ! (49 rows) SELECT tablename, rulename, definition FROM pg_rules ORDER BY tablename, rulename;