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Add new columns for tuple statistics on a database level to

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pg_stat_database.
This commit is contained in:
Magnus Hagander
2007-03-16 17:57:36 +00:00
parent c4fdfb8de3
commit 51d7741db1
8 changed files with 172 additions and 12 deletions
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9
src/backend/catalog/system_views.sql
View File

@ -3,7 +3,7 @@
*
* Copyright (c) 1996-2007, PostgreSQL Global Development Group
*
* $PostgreSQL: pgsql/src/backend/catalog/system_views.sql,v 1.35 2007/01/05 22:19:25 momjian Exp $
* $PostgreSQL: pgsql/src/backend/catalog/system_views.sql,v 1.36 2007/03/16 17:57:36 mha Exp $
*/
CREATE VIEW pg_roles AS
@ -357,5 +357,10 @@ CREATE VIEW pg_stat_database AS
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_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;

16
src/backend/postmaster/pgstat.c
View File

@ -13,7 +13,7 @@
*
* Copyright (c) 2001-2007, PostgreSQL Global Development Group
*
* $PostgreSQL: pgsql/src/backend/postmaster/pgstat.c,v 1.148 2007/03/01 20:06:56 tgl Exp $
* $PostgreSQL: pgsql/src/backend/postmaster/pgstat.c,v 1.149 2007/03/16 17:57:36 mha Exp $
* ----------
*/
#include "postgres.h"
@ -1970,6 +1970,11 @@ pgstat_get_db_entry(Oid databaseid, bool create)
result->n_xact_rollback = 0;
result->n_blocks_fetched = 0;
result->n_blocks_hit = 0;
result->n_tuples_returned = 0;
result->n_tuples_fetched = 0;
result->n_tuples_inserted = 0;
result->n_tuples_updated = 0;
result->n_tuples_deleted = 0;
result->last_autovac_time = 0;
memset(&hash_ctl, 0, sizeof(hash_ctl));
@ -2413,6 +2418,15 @@ pgstat_recv_tabstat(PgStat_MsgTabstat *msg, int len)
tabentry->blocks_hit += tabmsg[i].t_blocks_hit;
}
/*
* Add table stats to the database entry.
*/
dbentry->n_tuples_returned += tabmsg[i].t_tuples_returned;
dbentry->n_tuples_fetched += tabmsg[i].t_tuples_fetched;
dbentry->n_tuples_inserted += tabmsg[i].t_tuples_inserted;
dbentry->n_tuples_updated += tabmsg[i].t_tuples_updated;
dbentry->n_tuples_deleted += tabmsg[i].t_tuples_deleted;
/*
* And add the block IO to the database entry.
*/

87
src/backend/utils/adt/pgstatfuncs.c
View File

@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/utils/adt/pgstatfuncs.c,v 1.39 2007/02/27 23:48:08 tgl Exp $
* $PostgreSQL: pgsql/src/backend/utils/adt/pgstatfuncs.c,v 1.40 2007/03/16 17:57:36 mha Exp $
*
*-------------------------------------------------------------------------
*/
@ -55,6 +55,11 @@ extern Datum pg_stat_get_db_xact_commit(PG_FUNCTION_ARGS);
extern Datum pg_stat_get_db_xact_rollback(PG_FUNCTION_ARGS);
extern Datum pg_stat_get_db_blocks_fetched(PG_FUNCTION_ARGS);
extern Datum pg_stat_get_db_blocks_hit(PG_FUNCTION_ARGS);
extern Datum pg_stat_get_db_tuples_returned(PG_FUNCTION_ARGS);
extern Datum pg_stat_get_db_tuples_fetched(PG_FUNCTION_ARGS);
extern Datum pg_stat_get_db_tuples_inserted(PG_FUNCTION_ARGS);
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_clear_snapshot(PG_FUNCTION_ARGS);
extern Datum pg_stat_reset(PG_FUNCTION_ARGS);
@ -672,6 +677,86 @@ pg_stat_get_db_blocks_hit(PG_FUNCTION_ARGS)
}
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);
}
/* Discard the active statistics snapshot */
Datum
pg_stat_clear_snapshot(PG_FUNCTION_ARGS)