mirror of
https://github.com/postgres/postgres.git
synced 2025-06-29 10:41:53 +03:00
2b52069011
Initialization of this field was not being done according to the
st_changecount protocol (it has to be done within the changecount increment
range, not outside). And the test to see if the value should be reported
as null was wrong. Noted while perusing uses of Port.remote_hostname.
This was wrong from the introduction of this code (commit 4a25bc145),
so back-patch to 9.1.
1577 lines
36 KiB
C
1577 lines
36 KiB
C
/*-------------------------------------------------------------------------
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*
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* pgstatfuncs.c
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* Functions for accessing the statistics collector data
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*
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* Portions Copyright (c) 1996-2011, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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*
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* IDENTIFICATION
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* src/backend/utils/adt/pgstatfuncs.c
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*
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*-------------------------------------------------------------------------
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*/
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#include "postgres.h"
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#include "funcapi.h"
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#include "miscadmin.h"
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#include "pgstat.h"
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#include "catalog/pg_type.h"
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#include "utils/builtins.h"
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#include "utils/inet.h"
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#include "libpq/ip.h"
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/* bogus ... these externs should be in a header file */
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extern Datum pg_stat_get_numscans(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_tuples_returned(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_tuples_fetched(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_tuples_inserted(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_tuples_updated(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_tuples_deleted(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_tuples_hot_updated(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_live_tuples(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_dead_tuples(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_blocks_fetched(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_blocks_hit(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_last_vacuum_time(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_last_autovacuum_time(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_last_analyze_time(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_last_autoanalyze_time(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_vacuum_count(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_autovacuum_count(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_analyze_count(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_autoanalyze_count(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_function_calls(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_function_time(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_function_self_time(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_backend_idset(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_activity(PG_FUNCTION_ARGS);
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extern Datum pg_backend_pid(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_backend_pid(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_backend_dbid(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_backend_userid(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_backend_activity(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_backend_waiting(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_backend_activity_start(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_backend_xact_start(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_backend_start(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_backend_client_addr(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_backend_client_port(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_db_numbackends(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_db_xact_commit(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_db_xact_rollback(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_db_blocks_fetched(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_db_blocks_hit(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_db_tuples_returned(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_db_tuples_fetched(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_db_tuples_inserted(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_db_tuples_updated(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_db_tuples_deleted(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_db_conflict_tablespace(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_db_conflict_lock(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_db_conflict_snapshot(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_db_conflict_bufferpin(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_db_conflict_startup_deadlock(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_db_conflict_all(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_db_stat_reset_time(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_bgwriter_timed_checkpoints(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_bgwriter_requested_checkpoints(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_bgwriter_buf_written_checkpoints(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_bgwriter_buf_written_clean(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_bgwriter_maxwritten_clean(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_bgwriter_stat_reset_time(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_buf_written_backend(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_buf_fsync_backend(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_buf_alloc(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_xact_numscans(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_xact_tuples_returned(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_xact_tuples_fetched(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_xact_tuples_inserted(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_xact_tuples_updated(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_xact_tuples_deleted(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_xact_tuples_hot_updated(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_xact_blocks_fetched(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_xact_blocks_hit(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_xact_function_calls(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_xact_function_time(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_xact_function_self_time(PG_FUNCTION_ARGS);
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extern Datum pg_stat_clear_snapshot(PG_FUNCTION_ARGS);
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extern Datum pg_stat_reset(PG_FUNCTION_ARGS);
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extern Datum pg_stat_reset_shared(PG_FUNCTION_ARGS);
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extern Datum pg_stat_reset_single_table_counters(PG_FUNCTION_ARGS);
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extern Datum pg_stat_reset_single_function_counters(PG_FUNCTION_ARGS);
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/* Global bgwriter statistics, from bgwriter.c */
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extern PgStat_MsgBgWriter bgwriterStats;
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Datum
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pg_stat_get_numscans(PG_FUNCTION_ARGS)
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{
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Oid relid = PG_GETARG_OID(0);
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int64 result;
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PgStat_StatTabEntry *tabentry;
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if ((tabentry = pgstat_fetch_stat_tabentry(relid)) == NULL)
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result = 0;
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else
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result = (int64) (tabentry->numscans);
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PG_RETURN_INT64(result);
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}
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Datum
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pg_stat_get_tuples_returned(PG_FUNCTION_ARGS)
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{
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Oid relid = PG_GETARG_OID(0);
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int64 result;
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PgStat_StatTabEntry *tabentry;
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if ((tabentry = pgstat_fetch_stat_tabentry(relid)) == NULL)
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result = 0;
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else
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result = (int64) (tabentry->tuples_returned);
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PG_RETURN_INT64(result);
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}
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Datum
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pg_stat_get_tuples_fetched(PG_FUNCTION_ARGS)
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{
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Oid relid = PG_GETARG_OID(0);
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int64 result;
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PgStat_StatTabEntry *tabentry;
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if ((tabentry = pgstat_fetch_stat_tabentry(relid)) == NULL)
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result = 0;
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else
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result = (int64) (tabentry->tuples_fetched);
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PG_RETURN_INT64(result);
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}
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Datum
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pg_stat_get_tuples_inserted(PG_FUNCTION_ARGS)
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{
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Oid relid = PG_GETARG_OID(0);
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int64 result;
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PgStat_StatTabEntry *tabentry;
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if ((tabentry = pgstat_fetch_stat_tabentry(relid)) == NULL)
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result = 0;
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else
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result = (int64) (tabentry->tuples_inserted);
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PG_RETURN_INT64(result);
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}
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Datum
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pg_stat_get_tuples_updated(PG_FUNCTION_ARGS)
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{
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Oid relid = PG_GETARG_OID(0);
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int64 result;
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PgStat_StatTabEntry *tabentry;
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if ((tabentry = pgstat_fetch_stat_tabentry(relid)) == NULL)
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result = 0;
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else
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result = (int64) (tabentry->tuples_updated);
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PG_RETURN_INT64(result);
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}
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Datum
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pg_stat_get_tuples_deleted(PG_FUNCTION_ARGS)
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{
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Oid relid = PG_GETARG_OID(0);
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int64 result;
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PgStat_StatTabEntry *tabentry;
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if ((tabentry = pgstat_fetch_stat_tabentry(relid)) == NULL)
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result = 0;
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else
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result = (int64) (tabentry->tuples_deleted);
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PG_RETURN_INT64(result);
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}
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Datum
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pg_stat_get_tuples_hot_updated(PG_FUNCTION_ARGS)
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{
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Oid relid = PG_GETARG_OID(0);
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int64 result;
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PgStat_StatTabEntry *tabentry;
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if ((tabentry = pgstat_fetch_stat_tabentry(relid)) == NULL)
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result = 0;
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else
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result = (int64) (tabentry->tuples_hot_updated);
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PG_RETURN_INT64(result);
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}
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Datum
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pg_stat_get_live_tuples(PG_FUNCTION_ARGS)
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{
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Oid relid = PG_GETARG_OID(0);
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int64 result;
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PgStat_StatTabEntry *tabentry;
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if ((tabentry = pgstat_fetch_stat_tabentry(relid)) == NULL)
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result = 0;
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else
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result = (int64) (tabentry->n_live_tuples);
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PG_RETURN_INT64(result);
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}
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Datum
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pg_stat_get_dead_tuples(PG_FUNCTION_ARGS)
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{
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Oid relid = PG_GETARG_OID(0);
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int64 result;
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PgStat_StatTabEntry *tabentry;
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if ((tabentry = pgstat_fetch_stat_tabentry(relid)) == NULL)
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result = 0;
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else
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result = (int64) (tabentry->n_dead_tuples);
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PG_RETURN_INT64(result);
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}
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Datum
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pg_stat_get_blocks_fetched(PG_FUNCTION_ARGS)
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{
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Oid relid = PG_GETARG_OID(0);
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int64 result;
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PgStat_StatTabEntry *tabentry;
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if ((tabentry = pgstat_fetch_stat_tabentry(relid)) == NULL)
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result = 0;
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else
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result = (int64) (tabentry->blocks_fetched);
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PG_RETURN_INT64(result);
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}
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Datum
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pg_stat_get_blocks_hit(PG_FUNCTION_ARGS)
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{
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Oid relid = PG_GETARG_OID(0);
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int64 result;
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PgStat_StatTabEntry *tabentry;
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if ((tabentry = pgstat_fetch_stat_tabentry(relid)) == NULL)
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result = 0;
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else
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result = (int64) (tabentry->blocks_hit);
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PG_RETURN_INT64(result);
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}
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Datum
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pg_stat_get_last_vacuum_time(PG_FUNCTION_ARGS)
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{
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Oid relid = PG_GETARG_OID(0);
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TimestampTz result;
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PgStat_StatTabEntry *tabentry;
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if ((tabentry = pgstat_fetch_stat_tabentry(relid)) == NULL)
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result = 0;
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else
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result = tabentry->vacuum_timestamp;
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if (result == 0)
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PG_RETURN_NULL();
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else
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PG_RETURN_TIMESTAMPTZ(result);
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}
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Datum
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pg_stat_get_last_autovacuum_time(PG_FUNCTION_ARGS)
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{
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Oid relid = PG_GETARG_OID(0);
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TimestampTz result;
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PgStat_StatTabEntry *tabentry;
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if ((tabentry = pgstat_fetch_stat_tabentry(relid)) == NULL)
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result = 0;
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else
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result = tabentry->autovac_vacuum_timestamp;
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if (result == 0)
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PG_RETURN_NULL();
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else
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PG_RETURN_TIMESTAMPTZ(result);
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}
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Datum
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pg_stat_get_last_analyze_time(PG_FUNCTION_ARGS)
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{
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Oid relid = PG_GETARG_OID(0);
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TimestampTz result;
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PgStat_StatTabEntry *tabentry;
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if ((tabentry = pgstat_fetch_stat_tabentry(relid)) == NULL)
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result = 0;
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else
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result = tabentry->analyze_timestamp;
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if (result == 0)
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PG_RETURN_NULL();
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else
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PG_RETURN_TIMESTAMPTZ(result);
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}
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Datum
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pg_stat_get_last_autoanalyze_time(PG_FUNCTION_ARGS)
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{
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Oid relid = PG_GETARG_OID(0);
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TimestampTz result;
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PgStat_StatTabEntry *tabentry;
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if ((tabentry = pgstat_fetch_stat_tabentry(relid)) == NULL)
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result = 0;
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else
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result = tabentry->autovac_analyze_timestamp;
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if (result == 0)
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PG_RETURN_NULL();
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else
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PG_RETURN_TIMESTAMPTZ(result);
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}
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Datum
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pg_stat_get_vacuum_count(PG_FUNCTION_ARGS)
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{
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Oid relid = PG_GETARG_OID(0);
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int64 result;
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PgStat_StatTabEntry *tabentry;
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if ((tabentry = pgstat_fetch_stat_tabentry(relid)) == NULL)
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result = 0;
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else
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result = (int64) (tabentry->vacuum_count);
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PG_RETURN_INT64(result);
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}
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Datum
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pg_stat_get_autovacuum_count(PG_FUNCTION_ARGS)
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{
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Oid relid = PG_GETARG_OID(0);
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int64 result;
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PgStat_StatTabEntry *tabentry;
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if ((tabentry = pgstat_fetch_stat_tabentry(relid)) == NULL)
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result = 0;
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else
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result = (int64) (tabentry->autovac_vacuum_count);
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PG_RETURN_INT64(result);
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}
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Datum
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pg_stat_get_analyze_count(PG_FUNCTION_ARGS)
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{
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Oid relid = PG_GETARG_OID(0);
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int64 result;
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PgStat_StatTabEntry *tabentry;
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if ((tabentry = pgstat_fetch_stat_tabentry(relid)) == NULL)
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result = 0;
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else
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result = (int64) (tabentry->analyze_count);
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PG_RETURN_INT64(result);
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}
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Datum
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pg_stat_get_autoanalyze_count(PG_FUNCTION_ARGS)
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{
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Oid relid = PG_GETARG_OID(0);
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int64 result;
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PgStat_StatTabEntry *tabentry;
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if ((tabentry = pgstat_fetch_stat_tabentry(relid)) == NULL)
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result = 0;
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else
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result = (int64) (tabentry->autovac_analyze_count);
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PG_RETURN_INT64(result);
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}
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Datum
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pg_stat_get_function_calls(PG_FUNCTION_ARGS)
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{
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Oid funcid = PG_GETARG_OID(0);
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PgStat_StatFuncEntry *funcentry;
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if ((funcentry = pgstat_fetch_stat_funcentry(funcid)) == NULL)
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PG_RETURN_NULL();
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PG_RETURN_INT64(funcentry->f_numcalls);
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}
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Datum
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pg_stat_get_function_time(PG_FUNCTION_ARGS)
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{
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Oid funcid = PG_GETARG_OID(0);
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PgStat_StatFuncEntry *funcentry;
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if ((funcentry = pgstat_fetch_stat_funcentry(funcid)) == NULL)
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PG_RETURN_NULL();
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PG_RETURN_INT64(funcentry->f_time);
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}
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Datum
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pg_stat_get_function_self_time(PG_FUNCTION_ARGS)
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{
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Oid funcid = PG_GETARG_OID(0);
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PgStat_StatFuncEntry *funcentry;
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if ((funcentry = pgstat_fetch_stat_funcentry(funcid)) == NULL)
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PG_RETURN_NULL();
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PG_RETURN_INT64(funcentry->f_time_self);
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}
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Datum
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pg_stat_get_backend_idset(PG_FUNCTION_ARGS)
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{
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FuncCallContext *funcctx;
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int *fctx;
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int32 result;
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|
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/* stuff done only on the first call of the function */
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if (SRF_IS_FIRSTCALL())
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{
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/* create a function context for cross-call persistence */
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funcctx = SRF_FIRSTCALL_INIT();
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|
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fctx = MemoryContextAlloc(funcctx->multi_call_memory_ctx,
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2 * sizeof(int));
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funcctx->user_fctx = fctx;
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fctx[0] = 0;
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fctx[1] = pgstat_fetch_stat_numbackends();
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}
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|
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/* stuff done on every call of the function */
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funcctx = SRF_PERCALL_SETUP();
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fctx = funcctx->user_fctx;
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|
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fctx[0] += 1;
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result = fctx[0];
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|
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if (result <= fctx[1])
|
|
{
|
|
/* do when there is more left to send */
|
|
SRF_RETURN_NEXT(funcctx, Int32GetDatum(result));
|
|
}
|
|
else
|
|
{
|
|
/* do when there is no more left */
|
|
SRF_RETURN_DONE(funcctx);
|
|
}
|
|
}
|
|
|
|
Datum
|
|
pg_stat_get_activity(PG_FUNCTION_ARGS)
|
|
{
|
|
FuncCallContext *funcctx;
|
|
|
|
if (SRF_IS_FIRSTCALL())
|
|
{
|
|
MemoryContext oldcontext;
|
|
TupleDesc tupdesc;
|
|
|
|
funcctx = SRF_FIRSTCALL_INIT();
|
|
|
|
oldcontext = MemoryContextSwitchTo(funcctx->multi_call_memory_ctx);
|
|
|
|
tupdesc = CreateTemplateTupleDesc(12, false);
|
|
TupleDescInitEntry(tupdesc, (AttrNumber) 1, "datid",
|
|
OIDOID, -1, 0);
|
|
/* This should have been called 'pid'; can't change it. 2011-06-11 */
|
|
TupleDescInitEntry(tupdesc, (AttrNumber) 2, "procpid",
|
|
INT4OID, -1, 0);
|
|
TupleDescInitEntry(tupdesc, (AttrNumber) 3, "usesysid",
|
|
OIDOID, -1, 0);
|
|
TupleDescInitEntry(tupdesc, (AttrNumber) 4, "application_name",
|
|
TEXTOID, -1, 0);
|
|
TupleDescInitEntry(tupdesc, (AttrNumber) 5, "current_query",
|
|
TEXTOID, -1, 0);
|
|
TupleDescInitEntry(tupdesc, (AttrNumber) 6, "waiting",
|
|
BOOLOID, -1, 0);
|
|
TupleDescInitEntry(tupdesc, (AttrNumber) 7, "act_start",
|
|
TIMESTAMPTZOID, -1, 0);
|
|
TupleDescInitEntry(tupdesc, (AttrNumber) 8, "query_start",
|
|
TIMESTAMPTZOID, -1, 0);
|
|
TupleDescInitEntry(tupdesc, (AttrNumber) 9, "backend_start",
|
|
TIMESTAMPTZOID, -1, 0);
|
|
TupleDescInitEntry(tupdesc, (AttrNumber) 10, "client_addr",
|
|
INETOID, -1, 0);
|
|
TupleDescInitEntry(tupdesc, (AttrNumber) 11, "client_hostname",
|
|
TEXTOID, -1, 0);
|
|
TupleDescInitEntry(tupdesc, (AttrNumber) 12, "client_port",
|
|
INT4OID, -1, 0);
|
|
|
|
funcctx->tuple_desc = BlessTupleDesc(tupdesc);
|
|
|
|
funcctx->user_fctx = palloc0(sizeof(int));
|
|
if (PG_ARGISNULL(0))
|
|
{
|
|
/* Get all backends */
|
|
funcctx->max_calls = pgstat_fetch_stat_numbackends();
|
|
}
|
|
else
|
|
{
|
|
/*
|
|
* Get one backend - locate by pid.
|
|
*
|
|
* We lookup the backend early, so we can return zero rows if it
|
|
* doesn't exist, instead of returning a single row full of NULLs.
|
|
*/
|
|
int pid = PG_GETARG_INT32(0);
|
|
int i;
|
|
int n = pgstat_fetch_stat_numbackends();
|
|
|
|
for (i = 1; i <= n; i++)
|
|
{
|
|
PgBackendStatus *be = pgstat_fetch_stat_beentry(i);
|
|
|
|
if (be)
|
|
{
|
|
if (be->st_procpid == pid)
|
|
{
|
|
*(int *) (funcctx->user_fctx) = i;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (*(int *) (funcctx->user_fctx) == 0)
|
|
/* Pid not found, return zero rows */
|
|
funcctx->max_calls = 0;
|
|
else
|
|
funcctx->max_calls = 1;
|
|
}
|
|
|
|
MemoryContextSwitchTo(oldcontext);
|
|
}
|
|
|
|
/* stuff done on every call of the function */
|
|
funcctx = SRF_PERCALL_SETUP();
|
|
|
|
if (funcctx->call_cntr < funcctx->max_calls)
|
|
{
|
|
/* for each row */
|
|
Datum values[12];
|
|
bool nulls[12];
|
|
HeapTuple tuple;
|
|
PgBackendStatus *beentry;
|
|
|
|
MemSet(values, 0, sizeof(values));
|
|
MemSet(nulls, 0, sizeof(nulls));
|
|
|
|
if (*(int *) (funcctx->user_fctx) > 0)
|
|
{
|
|
/* Get specific pid slot */
|
|
beentry = pgstat_fetch_stat_beentry(*(int *) (funcctx->user_fctx));
|
|
}
|
|
else
|
|
{
|
|
/* Get the next one in the list */
|
|
beentry = pgstat_fetch_stat_beentry(funcctx->call_cntr + 1); /* 1-based index */
|
|
}
|
|
if (!beentry)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < sizeof(nulls) / sizeof(nulls[0]); i++)
|
|
nulls[i] = true;
|
|
|
|
nulls[4] = false;
|
|
values[4] = CStringGetTextDatum("<backend information not available>");
|
|
|
|
tuple = heap_form_tuple(funcctx->tuple_desc, values, nulls);
|
|
SRF_RETURN_NEXT(funcctx, HeapTupleGetDatum(tuple));
|
|
}
|
|
|
|
/* Values available to all callers */
|
|
values[0] = ObjectIdGetDatum(beentry->st_databaseid);
|
|
values[1] = Int32GetDatum(beentry->st_procpid);
|
|
values[2] = ObjectIdGetDatum(beentry->st_userid);
|
|
if (beentry->st_appname)
|
|
values[3] = CStringGetTextDatum(beentry->st_appname);
|
|
else
|
|
nulls[3] = true;
|
|
|
|
/* Values only available to same user or superuser */
|
|
if (superuser() || beentry->st_userid == GetUserId())
|
|
{
|
|
SockAddr zero_clientaddr;
|
|
|
|
if (*(beentry->st_activity) == '\0')
|
|
{
|
|
values[4] = CStringGetTextDatum("<command string not enabled>");
|
|
}
|
|
else
|
|
{
|
|
values[4] = CStringGetTextDatum(beentry->st_activity);
|
|
}
|
|
|
|
values[5] = BoolGetDatum(beentry->st_waiting);
|
|
|
|
if (beentry->st_xact_start_timestamp != 0)
|
|
values[6] = TimestampTzGetDatum(beentry->st_xact_start_timestamp);
|
|
else
|
|
nulls[6] = true;
|
|
|
|
if (beentry->st_activity_start_timestamp != 0)
|
|
values[7] = TimestampTzGetDatum(beentry->st_activity_start_timestamp);
|
|
else
|
|
nulls[7] = true;
|
|
|
|
if (beentry->st_proc_start_timestamp != 0)
|
|
values[8] = TimestampTzGetDatum(beentry->st_proc_start_timestamp);
|
|
else
|
|
nulls[8] = true;
|
|
|
|
/* A zeroed client addr means we don't know */
|
|
memset(&zero_clientaddr, 0, sizeof(zero_clientaddr));
|
|
if (memcmp(&(beentry->st_clientaddr), &zero_clientaddr,
|
|
sizeof(zero_clientaddr)) == 0)
|
|
{
|
|
nulls[9] = true;
|
|
nulls[10] = true;
|
|
nulls[11] = true;
|
|
}
|
|
else
|
|
{
|
|
if (beentry->st_clientaddr.addr.ss_family == AF_INET
|
|
#ifdef HAVE_IPV6
|
|
|| beentry->st_clientaddr.addr.ss_family == AF_INET6
|
|
#endif
|
|
)
|
|
{
|
|
char remote_host[NI_MAXHOST];
|
|
char remote_port[NI_MAXSERV];
|
|
int ret;
|
|
|
|
remote_host[0] = '\0';
|
|
remote_port[0] = '\0';
|
|
ret = pg_getnameinfo_all(&beentry->st_clientaddr.addr,
|
|
beentry->st_clientaddr.salen,
|
|
remote_host, sizeof(remote_host),
|
|
remote_port, sizeof(remote_port),
|
|
NI_NUMERICHOST | NI_NUMERICSERV);
|
|
if (ret)
|
|
{
|
|
nulls[9] = true;
|
|
nulls[10] = true;
|
|
nulls[11] = true;
|
|
}
|
|
else
|
|
{
|
|
clean_ipv6_addr(beentry->st_clientaddr.addr.ss_family, remote_host);
|
|
values[9] = DirectFunctionCall1(inet_in,
|
|
CStringGetDatum(remote_host));
|
|
if (beentry->st_clienthostname &&
|
|
beentry->st_clienthostname[0])
|
|
values[10] = CStringGetTextDatum(beentry->st_clienthostname);
|
|
else
|
|
nulls[10] = true;
|
|
values[11] = Int32GetDatum(atoi(remote_port));
|
|
}
|
|
}
|
|
else if (beentry->st_clientaddr.addr.ss_family == AF_UNIX)
|
|
{
|
|
/*
|
|
* Unix sockets always reports NULL for host and -1 for
|
|
* port, so it's possible to tell the difference to
|
|
* connections we have no permissions to view, or with
|
|
* errors.
|
|
*/
|
|
nulls[9] = true;
|
|
nulls[10] = true;
|
|
values[11] = DatumGetInt32(-1);
|
|
}
|
|
else
|
|
{
|
|
/* Unknown address type, should never happen */
|
|
nulls[9] = true;
|
|
nulls[10] = true;
|
|
nulls[11] = true;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* No permissions to view data about this session */
|
|
values[4] = CStringGetTextDatum("<insufficient privilege>");
|
|
nulls[5] = true;
|
|
nulls[6] = true;
|
|
nulls[7] = true;
|
|
nulls[8] = true;
|
|
nulls[9] = true;
|
|
nulls[10] = true;
|
|
nulls[11] = true;
|
|
}
|
|
|
|
tuple = heap_form_tuple(funcctx->tuple_desc, values, nulls);
|
|
|
|
SRF_RETURN_NEXT(funcctx, HeapTupleGetDatum(tuple));
|
|
}
|
|
else
|
|
{
|
|
/* nothing left */
|
|
SRF_RETURN_DONE(funcctx);
|
|
}
|
|
}
|
|
|
|
|
|
Datum
|
|
pg_backend_pid(PG_FUNCTION_ARGS)
|
|
{
|
|
PG_RETURN_INT32(MyProcPid);
|
|
}
|
|
|
|
|
|
Datum
|
|
pg_stat_get_backend_pid(PG_FUNCTION_ARGS)
|
|
{
|
|
int32 beid = PG_GETARG_INT32(0);
|
|
PgBackendStatus *beentry;
|
|
|
|
if ((beentry = pgstat_fetch_stat_beentry(beid)) == NULL)
|
|
PG_RETURN_NULL();
|
|
|
|
PG_RETURN_INT32(beentry->st_procpid);
|
|
}
|
|
|
|
|
|
Datum
|
|
pg_stat_get_backend_dbid(PG_FUNCTION_ARGS)
|
|
{
|
|
int32 beid = PG_GETARG_INT32(0);
|
|
PgBackendStatus *beentry;
|
|
|
|
if ((beentry = pgstat_fetch_stat_beentry(beid)) == NULL)
|
|
PG_RETURN_NULL();
|
|
|
|
PG_RETURN_OID(beentry->st_databaseid);
|
|
}
|
|
|
|
|
|
Datum
|
|
pg_stat_get_backend_userid(PG_FUNCTION_ARGS)
|
|
{
|
|
int32 beid = PG_GETARG_INT32(0);
|
|
PgBackendStatus *beentry;
|
|
|
|
if ((beentry = pgstat_fetch_stat_beentry(beid)) == NULL)
|
|
PG_RETURN_NULL();
|
|
|
|
PG_RETURN_OID(beentry->st_userid);
|
|
}
|
|
|
|
|
|
Datum
|
|
pg_stat_get_backend_activity(PG_FUNCTION_ARGS)
|
|
{
|
|
int32 beid = PG_GETARG_INT32(0);
|
|
PgBackendStatus *beentry;
|
|
const char *activity;
|
|
|
|
if ((beentry = pgstat_fetch_stat_beentry(beid)) == NULL)
|
|
activity = "<backend information not available>";
|
|
else if (!superuser() && beentry->st_userid != GetUserId())
|
|
activity = "<insufficient privilege>";
|
|
else if (*(beentry->st_activity) == '\0')
|
|
activity = "<command string not enabled>";
|
|
else
|
|
activity = beentry->st_activity;
|
|
|
|
PG_RETURN_TEXT_P(cstring_to_text(activity));
|
|
}
|
|
|
|
|
|
Datum
|
|
pg_stat_get_backend_waiting(PG_FUNCTION_ARGS)
|
|
{
|
|
int32 beid = PG_GETARG_INT32(0);
|
|
bool result;
|
|
PgBackendStatus *beentry;
|
|
|
|
if ((beentry = pgstat_fetch_stat_beentry(beid)) == NULL)
|
|
PG_RETURN_NULL();
|
|
|
|
if (!superuser() && beentry->st_userid != GetUserId())
|
|
PG_RETURN_NULL();
|
|
|
|
result = beentry->st_waiting;
|
|
|
|
PG_RETURN_BOOL(result);
|
|
}
|
|
|
|
|
|
Datum
|
|
pg_stat_get_backend_activity_start(PG_FUNCTION_ARGS)
|
|
{
|
|
int32 beid = PG_GETARG_INT32(0);
|
|
TimestampTz result;
|
|
PgBackendStatus *beentry;
|
|
|
|
if ((beentry = pgstat_fetch_stat_beentry(beid)) == NULL)
|
|
PG_RETURN_NULL();
|
|
|
|
if (!superuser() && beentry->st_userid != GetUserId())
|
|
PG_RETURN_NULL();
|
|
|
|
result = beentry->st_activity_start_timestamp;
|
|
|
|
/*
|
|
* No time recorded for start of current query -- this is the case if the
|
|
* user hasn't enabled query-level stats collection.
|
|
*/
|
|
if (result == 0)
|
|
PG_RETURN_NULL();
|
|
|
|
PG_RETURN_TIMESTAMPTZ(result);
|
|
}
|
|
|
|
|
|
Datum
|
|
pg_stat_get_backend_xact_start(PG_FUNCTION_ARGS)
|
|
{
|
|
int32 beid = PG_GETARG_INT32(0);
|
|
TimestampTz result;
|
|
PgBackendStatus *beentry;
|
|
|
|
if ((beentry = pgstat_fetch_stat_beentry(beid)) == NULL)
|
|
PG_RETURN_NULL();
|
|
|
|
if (!superuser() && beentry->st_userid != GetUserId())
|
|
PG_RETURN_NULL();
|
|
|
|
result = beentry->st_xact_start_timestamp;
|
|
|
|
if (result == 0) /* not in a transaction */
|
|
PG_RETURN_NULL();
|
|
|
|
PG_RETURN_TIMESTAMPTZ(result);
|
|
}
|
|
|
|
|
|
Datum
|
|
pg_stat_get_backend_start(PG_FUNCTION_ARGS)
|
|
{
|
|
int32 beid = PG_GETARG_INT32(0);
|
|
TimestampTz result;
|
|
PgBackendStatus *beentry;
|
|
|
|
if ((beentry = pgstat_fetch_stat_beentry(beid)) == NULL)
|
|
PG_RETURN_NULL();
|
|
|
|
if (!superuser() && beentry->st_userid != GetUserId())
|
|
PG_RETURN_NULL();
|
|
|
|
result = beentry->st_proc_start_timestamp;
|
|
|
|
if (result == 0) /* probably can't happen? */
|
|
PG_RETURN_NULL();
|
|
|
|
PG_RETURN_TIMESTAMPTZ(result);
|
|
}
|
|
|
|
|
|
Datum
|
|
pg_stat_get_backend_client_addr(PG_FUNCTION_ARGS)
|
|
{
|
|
int32 beid = PG_GETARG_INT32(0);
|
|
PgBackendStatus *beentry;
|
|
SockAddr zero_clientaddr;
|
|
char remote_host[NI_MAXHOST];
|
|
int ret;
|
|
|
|
if ((beentry = pgstat_fetch_stat_beentry(beid)) == NULL)
|
|
PG_RETURN_NULL();
|
|
|
|
if (!superuser() && beentry->st_userid != GetUserId())
|
|
PG_RETURN_NULL();
|
|
|
|
/* A zeroed client addr means we don't know */
|
|
memset(&zero_clientaddr, 0, sizeof(zero_clientaddr));
|
|
if (memcmp(&(beentry->st_clientaddr), &zero_clientaddr,
|
|
sizeof(zero_clientaddr)) == 0)
|
|
PG_RETURN_NULL();
|
|
|
|
switch (beentry->st_clientaddr.addr.ss_family)
|
|
{
|
|
case AF_INET:
|
|
#ifdef HAVE_IPV6
|
|
case AF_INET6:
|
|
#endif
|
|
break;
|
|
default:
|
|
PG_RETURN_NULL();
|
|
}
|
|
|
|
remote_host[0] = '\0';
|
|
ret = pg_getnameinfo_all(&beentry->st_clientaddr.addr,
|
|
beentry->st_clientaddr.salen,
|
|
remote_host, sizeof(remote_host),
|
|
NULL, 0,
|
|
NI_NUMERICHOST | NI_NUMERICSERV);
|
|
if (ret)
|
|
PG_RETURN_NULL();
|
|
|
|
clean_ipv6_addr(beentry->st_clientaddr.addr.ss_family, remote_host);
|
|
|
|
PG_RETURN_INET_P(DirectFunctionCall1(inet_in,
|
|
CStringGetDatum(remote_host)));
|
|
}
|
|
|
|
Datum
|
|
pg_stat_get_backend_client_port(PG_FUNCTION_ARGS)
|
|
{
|
|
int32 beid = PG_GETARG_INT32(0);
|
|
PgBackendStatus *beentry;
|
|
SockAddr zero_clientaddr;
|
|
char remote_port[NI_MAXSERV];
|
|
int ret;
|
|
|
|
if ((beentry = pgstat_fetch_stat_beentry(beid)) == NULL)
|
|
PG_RETURN_NULL();
|
|
|
|
if (!superuser() && beentry->st_userid != GetUserId())
|
|
PG_RETURN_NULL();
|
|
|
|
/* A zeroed client addr means we don't know */
|
|
memset(&zero_clientaddr, 0, sizeof(zero_clientaddr));
|
|
if (memcmp(&(beentry->st_clientaddr), &zero_clientaddr,
|
|
sizeof(zero_clientaddr)) == 0)
|
|
PG_RETURN_NULL();
|
|
|
|
switch (beentry->st_clientaddr.addr.ss_family)
|
|
{
|
|
case AF_INET:
|
|
#ifdef HAVE_IPV6
|
|
case AF_INET6:
|
|
#endif
|
|
break;
|
|
case AF_UNIX:
|
|
PG_RETURN_INT32(-1);
|
|
default:
|
|
PG_RETURN_NULL();
|
|
}
|
|
|
|
remote_port[0] = '\0';
|
|
ret = pg_getnameinfo_all(&beentry->st_clientaddr.addr,
|
|
beentry->st_clientaddr.salen,
|
|
NULL, 0,
|
|
remote_port, sizeof(remote_port),
|
|
NI_NUMERICHOST | NI_NUMERICSERV);
|
|
if (ret)
|
|
PG_RETURN_NULL();
|
|
|
|
PG_RETURN_DATUM(DirectFunctionCall1(int4in,
|
|
CStringGetDatum(remote_port)));
|
|
}
|
|
|
|
|
|
Datum
|
|
pg_stat_get_db_numbackends(PG_FUNCTION_ARGS)
|
|
{
|
|
Oid dbid = PG_GETARG_OID(0);
|
|
int32 result;
|
|
int tot_backends = pgstat_fetch_stat_numbackends();
|
|
int beid;
|
|
|
|
result = 0;
|
|
for (beid = 1; beid <= tot_backends; beid++)
|
|
{
|
|
PgBackendStatus *beentry = pgstat_fetch_stat_beentry(beid);
|
|
|
|
if (beentry && beentry->st_databaseid == dbid)
|
|
result++;
|
|
}
|
|
|
|
PG_RETURN_INT32(result);
|
|
}
|
|
|
|
|
|
Datum
|
|
pg_stat_get_db_xact_commit(PG_FUNCTION_ARGS)
|
|
{
|
|
Oid dbid = PG_GETARG_OID(0);
|
|
int64 result;
|
|
PgStat_StatDBEntry *dbentry;
|
|
|
|
if ((dbentry = pgstat_fetch_stat_dbentry(dbid)) == NULL)
|
|
result = 0;
|
|
else
|
|
result = (int64) (dbentry->n_xact_commit);
|
|
|
|
PG_RETURN_INT64(result);
|
|
}
|
|
|
|
|
|
Datum
|
|
pg_stat_get_db_xact_rollback(PG_FUNCTION_ARGS)
|
|
{
|
|
Oid dbid = PG_GETARG_OID(0);
|
|
int64 result;
|
|
PgStat_StatDBEntry *dbentry;
|
|
|
|
if ((dbentry = pgstat_fetch_stat_dbentry(dbid)) == NULL)
|
|
result = 0;
|
|
else
|
|
result = (int64) (dbentry->n_xact_rollback);
|
|
|
|
PG_RETURN_INT64(result);
|
|
}
|
|
|
|
|
|
Datum
|
|
pg_stat_get_db_blocks_fetched(PG_FUNCTION_ARGS)
|
|
{
|
|
Oid dbid = PG_GETARG_OID(0);
|
|
int64 result;
|
|
PgStat_StatDBEntry *dbentry;
|
|
|
|
if ((dbentry = pgstat_fetch_stat_dbentry(dbid)) == NULL)
|
|
result = 0;
|
|
else
|
|
result = (int64) (dbentry->n_blocks_fetched);
|
|
|
|
PG_RETURN_INT64(result);
|
|
}
|
|
|
|
|
|
Datum
|
|
pg_stat_get_db_blocks_hit(PG_FUNCTION_ARGS)
|
|
{
|
|
Oid dbid = PG_GETARG_OID(0);
|
|
int64 result;
|
|
PgStat_StatDBEntry *dbentry;
|
|
|
|
if ((dbentry = pgstat_fetch_stat_dbentry(dbid)) == NULL)
|
|
result = 0;
|
|
else
|
|
result = (int64) (dbentry->n_blocks_hit);
|
|
|
|
PG_RETURN_INT64(result);
|
|
}
|
|
|
|
|
|
Datum
|
|
pg_stat_get_db_tuples_returned(PG_FUNCTION_ARGS)
|
|
{
|
|
Oid dbid = PG_GETARG_OID(0);
|
|
int64 result;
|
|
PgStat_StatDBEntry *dbentry;
|
|
|
|
if ((dbentry = pgstat_fetch_stat_dbentry(dbid)) == NULL)
|
|
result = 0;
|
|
else
|
|
result = (int64) (dbentry->n_tuples_returned);
|
|
|
|
PG_RETURN_INT64(result);
|
|
}
|
|
|
|
|
|
Datum
|
|
pg_stat_get_db_tuples_fetched(PG_FUNCTION_ARGS)
|
|
{
|
|
Oid dbid = PG_GETARG_OID(0);
|
|
int64 result;
|
|
PgStat_StatDBEntry *dbentry;
|
|
|
|
if ((dbentry = pgstat_fetch_stat_dbentry(dbid)) == NULL)
|
|
result = 0;
|
|
else
|
|
result = (int64) (dbentry->n_tuples_fetched);
|
|
|
|
PG_RETURN_INT64(result);
|
|
}
|
|
|
|
|
|
Datum
|
|
pg_stat_get_db_tuples_inserted(PG_FUNCTION_ARGS)
|
|
{
|
|
Oid dbid = PG_GETARG_OID(0);
|
|
int64 result;
|
|
PgStat_StatDBEntry *dbentry;
|
|
|
|
if ((dbentry = pgstat_fetch_stat_dbentry(dbid)) == NULL)
|
|
result = 0;
|
|
else
|
|
result = (int64) (dbentry->n_tuples_inserted);
|
|
|
|
PG_RETURN_INT64(result);
|
|
}
|
|
|
|
|
|
Datum
|
|
pg_stat_get_db_tuples_updated(PG_FUNCTION_ARGS)
|
|
{
|
|
Oid dbid = PG_GETARG_OID(0);
|
|
int64 result;
|
|
PgStat_StatDBEntry *dbentry;
|
|
|
|
if ((dbentry = pgstat_fetch_stat_dbentry(dbid)) == NULL)
|
|
result = 0;
|
|
else
|
|
result = (int64) (dbentry->n_tuples_updated);
|
|
|
|
PG_RETURN_INT64(result);
|
|
}
|
|
|
|
|
|
Datum
|
|
pg_stat_get_db_tuples_deleted(PG_FUNCTION_ARGS)
|
|
{
|
|
Oid dbid = PG_GETARG_OID(0);
|
|
int64 result;
|
|
PgStat_StatDBEntry *dbentry;
|
|
|
|
if ((dbentry = pgstat_fetch_stat_dbentry(dbid)) == NULL)
|
|
result = 0;
|
|
else
|
|
result = (int64) (dbentry->n_tuples_deleted);
|
|
|
|
PG_RETURN_INT64(result);
|
|
}
|
|
|
|
Datum
|
|
pg_stat_get_db_stat_reset_time(PG_FUNCTION_ARGS)
|
|
{
|
|
Oid dbid = PG_GETARG_OID(0);
|
|
TimestampTz result;
|
|
PgStat_StatDBEntry *dbentry;
|
|
|
|
if ((dbentry = pgstat_fetch_stat_dbentry(dbid)) == NULL)
|
|
result = 0;
|
|
else
|
|
result = dbentry->stat_reset_timestamp;
|
|
|
|
if (result == 0)
|
|
PG_RETURN_NULL();
|
|
else
|
|
PG_RETURN_TIMESTAMPTZ(result);
|
|
}
|
|
|
|
Datum
|
|
pg_stat_get_db_conflict_tablespace(PG_FUNCTION_ARGS)
|
|
{
|
|
Oid dbid = PG_GETARG_OID(0);
|
|
int64 result;
|
|
PgStat_StatDBEntry *dbentry;
|
|
|
|
if ((dbentry = pgstat_fetch_stat_dbentry(dbid)) == NULL)
|
|
result = 0;
|
|
else
|
|
result = (int64) (dbentry->n_conflict_tablespace);
|
|
|
|
PG_RETURN_INT64(result);
|
|
}
|
|
|
|
Datum
|
|
pg_stat_get_db_conflict_lock(PG_FUNCTION_ARGS)
|
|
{
|
|
Oid dbid = PG_GETARG_OID(0);
|
|
int64 result;
|
|
PgStat_StatDBEntry *dbentry;
|
|
|
|
if ((dbentry = pgstat_fetch_stat_dbentry(dbid)) == NULL)
|
|
result = 0;
|
|
else
|
|
result = (int64) (dbentry->n_conflict_lock);
|
|
|
|
PG_RETURN_INT64(result);
|
|
}
|
|
|
|
Datum
|
|
pg_stat_get_db_conflict_snapshot(PG_FUNCTION_ARGS)
|
|
{
|
|
Oid dbid = PG_GETARG_OID(0);
|
|
int64 result;
|
|
PgStat_StatDBEntry *dbentry;
|
|
|
|
if ((dbentry = pgstat_fetch_stat_dbentry(dbid)) == NULL)
|
|
result = 0;
|
|
else
|
|
result = (int64) (dbentry->n_conflict_snapshot);
|
|
|
|
PG_RETURN_INT64(result);
|
|
}
|
|
|
|
Datum
|
|
pg_stat_get_db_conflict_bufferpin(PG_FUNCTION_ARGS)
|
|
{
|
|
Oid dbid = PG_GETARG_OID(0);
|
|
int64 result;
|
|
PgStat_StatDBEntry *dbentry;
|
|
|
|
if ((dbentry = pgstat_fetch_stat_dbentry(dbid)) == NULL)
|
|
result = 0;
|
|
else
|
|
result = (int64) (dbentry->n_conflict_bufferpin);
|
|
|
|
PG_RETURN_INT64(result);
|
|
}
|
|
|
|
Datum
|
|
pg_stat_get_db_conflict_startup_deadlock(PG_FUNCTION_ARGS)
|
|
{
|
|
Oid dbid = PG_GETARG_OID(0);
|
|
int64 result;
|
|
PgStat_StatDBEntry *dbentry;
|
|
|
|
if ((dbentry = pgstat_fetch_stat_dbentry(dbid)) == NULL)
|
|
result = 0;
|
|
else
|
|
result = (int64) (dbentry->n_conflict_startup_deadlock);
|
|
|
|
PG_RETURN_INT64(result);
|
|
}
|
|
|
|
Datum
|
|
pg_stat_get_db_conflict_all(PG_FUNCTION_ARGS)
|
|
{
|
|
Oid dbid = PG_GETARG_OID(0);
|
|
int64 result;
|
|
PgStat_StatDBEntry *dbentry;
|
|
|
|
if ((dbentry = pgstat_fetch_stat_dbentry(dbid)) == NULL)
|
|
result = 0;
|
|
else
|
|
result = (int64) (
|
|
dbentry->n_conflict_tablespace +
|
|
dbentry->n_conflict_lock +
|
|
dbentry->n_conflict_snapshot +
|
|
dbentry->n_conflict_bufferpin +
|
|
dbentry->n_conflict_startup_deadlock);
|
|
|
|
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_clean(PG_FUNCTION_ARGS)
|
|
{
|
|
PG_RETURN_INT64(pgstat_fetch_global()->buf_written_clean);
|
|
}
|
|
|
|
Datum
|
|
pg_stat_get_bgwriter_maxwritten_clean(PG_FUNCTION_ARGS)
|
|
{
|
|
PG_RETURN_INT64(pgstat_fetch_global()->maxwritten_clean);
|
|
}
|
|
|
|
Datum
|
|
pg_stat_get_bgwriter_stat_reset_time(PG_FUNCTION_ARGS)
|
|
{
|
|
PG_RETURN_TIMESTAMPTZ(pgstat_fetch_global()->stat_reset_timestamp);
|
|
}
|
|
|
|
Datum
|
|
pg_stat_get_buf_written_backend(PG_FUNCTION_ARGS)
|
|
{
|
|
PG_RETURN_INT64(pgstat_fetch_global()->buf_written_backend);
|
|
}
|
|
|
|
Datum
|
|
pg_stat_get_buf_fsync_backend(PG_FUNCTION_ARGS)
|
|
{
|
|
PG_RETURN_INT64(pgstat_fetch_global()->buf_fsync_backend);
|
|
}
|
|
|
|
Datum
|
|
pg_stat_get_buf_alloc(PG_FUNCTION_ARGS)
|
|
{
|
|
PG_RETURN_INT64(pgstat_fetch_global()->buf_alloc);
|
|
}
|
|
|
|
Datum
|
|
pg_stat_get_xact_numscans(PG_FUNCTION_ARGS)
|
|
{
|
|
Oid relid = PG_GETARG_OID(0);
|
|
int64 result;
|
|
PgStat_TableStatus *tabentry;
|
|
|
|
if ((tabentry = find_tabstat_entry(relid)) == NULL)
|
|
result = 0;
|
|
else
|
|
result = (int64) (tabentry->t_counts.t_numscans);
|
|
|
|
PG_RETURN_INT64(result);
|
|
}
|
|
|
|
Datum
|
|
pg_stat_get_xact_tuples_returned(PG_FUNCTION_ARGS)
|
|
{
|
|
Oid relid = PG_GETARG_OID(0);
|
|
int64 result;
|
|
PgStat_TableStatus *tabentry;
|
|
|
|
if ((tabentry = find_tabstat_entry(relid)) == NULL)
|
|
result = 0;
|
|
else
|
|
result = (int64) (tabentry->t_counts.t_tuples_returned);
|
|
|
|
PG_RETURN_INT64(result);
|
|
}
|
|
|
|
Datum
|
|
pg_stat_get_xact_tuples_fetched(PG_FUNCTION_ARGS)
|
|
{
|
|
Oid relid = PG_GETARG_OID(0);
|
|
int64 result;
|
|
PgStat_TableStatus *tabentry;
|
|
|
|
if ((tabentry = find_tabstat_entry(relid)) == NULL)
|
|
result = 0;
|
|
else
|
|
result = (int64) (tabentry->t_counts.t_tuples_fetched);
|
|
|
|
PG_RETURN_INT64(result);
|
|
}
|
|
|
|
Datum
|
|
pg_stat_get_xact_tuples_inserted(PG_FUNCTION_ARGS)
|
|
{
|
|
Oid relid = PG_GETARG_OID(0);
|
|
int64 result;
|
|
PgStat_TableStatus *tabentry;
|
|
PgStat_TableXactStatus *trans;
|
|
|
|
if ((tabentry = find_tabstat_entry(relid)) == NULL)
|
|
result = 0;
|
|
else
|
|
{
|
|
result = tabentry->t_counts.t_tuples_inserted;
|
|
/* live subtransactions' counts aren't in t_tuples_inserted yet */
|
|
for (trans = tabentry->trans; trans != NULL; trans = trans->upper)
|
|
result += trans->tuples_inserted;
|
|
}
|
|
|
|
PG_RETURN_INT64(result);
|
|
}
|
|
|
|
Datum
|
|
pg_stat_get_xact_tuples_updated(PG_FUNCTION_ARGS)
|
|
{
|
|
Oid relid = PG_GETARG_OID(0);
|
|
int64 result;
|
|
PgStat_TableStatus *tabentry;
|
|
PgStat_TableXactStatus *trans;
|
|
|
|
if ((tabentry = find_tabstat_entry(relid)) == NULL)
|
|
result = 0;
|
|
else
|
|
{
|
|
result = tabentry->t_counts.t_tuples_updated;
|
|
/* live subtransactions' counts aren't in t_tuples_updated yet */
|
|
for (trans = tabentry->trans; trans != NULL; trans = trans->upper)
|
|
result += trans->tuples_updated;
|
|
}
|
|
|
|
PG_RETURN_INT64(result);
|
|
}
|
|
|
|
Datum
|
|
pg_stat_get_xact_tuples_deleted(PG_FUNCTION_ARGS)
|
|
{
|
|
Oid relid = PG_GETARG_OID(0);
|
|
int64 result;
|
|
PgStat_TableStatus *tabentry;
|
|
PgStat_TableXactStatus *trans;
|
|
|
|
if ((tabentry = find_tabstat_entry(relid)) == NULL)
|
|
result = 0;
|
|
else
|
|
{
|
|
result = tabentry->t_counts.t_tuples_deleted;
|
|
/* live subtransactions' counts aren't in t_tuples_deleted yet */
|
|
for (trans = tabentry->trans; trans != NULL; trans = trans->upper)
|
|
result += trans->tuples_deleted;
|
|
}
|
|
|
|
PG_RETURN_INT64(result);
|
|
}
|
|
|
|
Datum
|
|
pg_stat_get_xact_tuples_hot_updated(PG_FUNCTION_ARGS)
|
|
{
|
|
Oid relid = PG_GETARG_OID(0);
|
|
int64 result;
|
|
PgStat_TableStatus *tabentry;
|
|
|
|
if ((tabentry = find_tabstat_entry(relid)) == NULL)
|
|
result = 0;
|
|
else
|
|
result = (int64) (tabentry->t_counts.t_tuples_hot_updated);
|
|
|
|
PG_RETURN_INT64(result);
|
|
}
|
|
|
|
Datum
|
|
pg_stat_get_xact_blocks_fetched(PG_FUNCTION_ARGS)
|
|
{
|
|
Oid relid = PG_GETARG_OID(0);
|
|
int64 result;
|
|
PgStat_TableStatus *tabentry;
|
|
|
|
if ((tabentry = find_tabstat_entry(relid)) == NULL)
|
|
result = 0;
|
|
else
|
|
result = (int64) (tabentry->t_counts.t_blocks_fetched);
|
|
|
|
PG_RETURN_INT64(result);
|
|
}
|
|
|
|
Datum
|
|
pg_stat_get_xact_blocks_hit(PG_FUNCTION_ARGS)
|
|
{
|
|
Oid relid = PG_GETARG_OID(0);
|
|
int64 result;
|
|
PgStat_TableStatus *tabentry;
|
|
|
|
if ((tabentry = find_tabstat_entry(relid)) == NULL)
|
|
result = 0;
|
|
else
|
|
result = (int64) (tabentry->t_counts.t_blocks_hit);
|
|
|
|
PG_RETURN_INT64(result);
|
|
}
|
|
|
|
Datum
|
|
pg_stat_get_xact_function_calls(PG_FUNCTION_ARGS)
|
|
{
|
|
Oid funcid = PG_GETARG_OID(0);
|
|
PgStat_BackendFunctionEntry *funcentry;
|
|
|
|
if ((funcentry = find_funcstat_entry(funcid)) == NULL)
|
|
PG_RETURN_NULL();
|
|
PG_RETURN_INT64(funcentry->f_counts.f_numcalls);
|
|
}
|
|
|
|
Datum
|
|
pg_stat_get_xact_function_time(PG_FUNCTION_ARGS)
|
|
{
|
|
Oid funcid = PG_GETARG_OID(0);
|
|
PgStat_BackendFunctionEntry *funcentry;
|
|
|
|
if ((funcentry = find_funcstat_entry(funcid)) == NULL)
|
|
PG_RETURN_NULL();
|
|
PG_RETURN_INT64(INSTR_TIME_GET_MICROSEC(funcentry->f_counts.f_time));
|
|
}
|
|
|
|
Datum
|
|
pg_stat_get_xact_function_self_time(PG_FUNCTION_ARGS)
|
|
{
|
|
Oid funcid = PG_GETARG_OID(0);
|
|
PgStat_BackendFunctionEntry *funcentry;
|
|
|
|
if ((funcentry = find_funcstat_entry(funcid)) == NULL)
|
|
PG_RETURN_NULL();
|
|
PG_RETURN_INT64(INSTR_TIME_GET_MICROSEC(funcentry->f_counts.f_time_self));
|
|
}
|
|
|
|
|
|
/* Discard the active statistics snapshot */
|
|
Datum
|
|
pg_stat_clear_snapshot(PG_FUNCTION_ARGS)
|
|
{
|
|
pgstat_clear_snapshot();
|
|
|
|
PG_RETURN_VOID();
|
|
}
|
|
|
|
|
|
/* Reset all counters for the current database */
|
|
Datum
|
|
pg_stat_reset(PG_FUNCTION_ARGS)
|
|
{
|
|
pgstat_reset_counters();
|
|
|
|
PG_RETURN_VOID();
|
|
}
|
|
|
|
/* Reset some shared cluster-wide counters */
|
|
Datum
|
|
pg_stat_reset_shared(PG_FUNCTION_ARGS)
|
|
{
|
|
if (PG_ARGISNULL(0))
|
|
/*
|
|
* Same error message as in pgstat_reset_shared_counters(),
|
|
* to keep translations the same.
|
|
*/
|
|
ereport(ERROR,
|
|
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
|
|
errmsg("unrecognized reset target: \"%s\"", "null"),
|
|
errhint("Target must be \"bgwriter\".")));
|
|
|
|
pgstat_reset_shared_counters(text_to_cstring(PG_GETARG_TEXT_PP(0)));
|
|
|
|
PG_RETURN_VOID();
|
|
}
|
|
|
|
/* Reset a a single counter in the current database */
|
|
Datum
|
|
pg_stat_reset_single_table_counters(PG_FUNCTION_ARGS)
|
|
{
|
|
Oid taboid = PG_GETARG_OID(0);
|
|
|
|
pgstat_reset_single_counter(taboid, RESET_TABLE);
|
|
|
|
PG_RETURN_VOID();
|
|
}
|
|
|
|
Datum
|
|
pg_stat_reset_single_function_counters(PG_FUNCTION_ARGS)
|
|
{
|
|
Oid funcoid = PG_GETARG_OID(0);
|
|
|
|
pgstat_reset_single_counter(funcoid, RESET_FUNCTION);
|
|
|
|
PG_RETURN_VOID();
|
|
}
|