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Add last-vacuum/analyze-time columns to the stats collector, both manual and

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issued by autovacuum.  Add accessor functions to them, and use those in the
pg_stat_*_tables system views.

Catalog version bumped due to changes in the pgstat views and the pgstat file.

Patch from Larry Rosenman, minor improvements by me.
This commit is contained in:
Alvaro Herrera
2006-05-19 19:08:27 +00:00
parent 09518fbdf4
commit 1f219cf433
8 changed files with 171 additions and 12 deletions
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24
src/backend/postmaster/pgstat.c
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@ -13,7 +13,7 @@
*
* Copyright (c) 2001-2006, PostgreSQL Global Development Group
*
* $PostgreSQL: pgsql/src/backend/postmaster/pgstat.c,v 1.125 2006/05/19 15:15:37 alvherre Exp $
* $PostgreSQL: pgsql/src/backend/postmaster/pgstat.c,v 1.126 2006/05/19 19:08:26 alvherre Exp $
* ----------
*/
#include "postgres.h"
@ -739,6 +739,8 @@ pgstat_report_vacuum(Oid tableoid, bool shared,
msg.m_databaseid = shared ? InvalidOid : MyDatabaseId;
msg.m_tableoid = tableoid;
msg.m_analyze = analyze;
msg.m_autovacuum = IsAutoVacuumProcess(); /* is this autovacuum? */
msg.m_vacuumtime = GetCurrentTimestamp();
msg.m_tuples = tuples;
pgstat_send(&msg, sizeof(msg));
}
@ -762,6 +764,8 @@ pgstat_report_analyze(Oid tableoid, bool shared, PgStat_Counter livetuples,
pgstat_setheader(&msg.m_hdr, PGSTAT_MTYPE_ANALYZE);
msg.m_databaseid = shared ? InvalidOid : MyDatabaseId;
msg.m_tableoid = tableoid;
msg.m_autovacuum = IsAutoVacuumProcess(); /* is this autovacuum? */
msg.m_analyzetime = GetCurrentTimestamp();
msg.m_live_tuples = livetuples;
msg.m_dead_tuples = deadtuples;
pgstat_send(&msg, sizeof(msg));
@ -2887,10 +2891,20 @@ pgstat_recv_vacuum(PgStat_MsgVacuum *msg, int len)
if (tabentry == NULL)
return;
if (msg->m_autovacuum)
tabentry->autovac_vacuum_timestamp = msg->m_vacuumtime;
else
tabentry->vacuum_timestamp = msg->m_vacuumtime;
tabentry->n_live_tuples = msg->m_tuples;
tabentry->n_dead_tuples = 0;
if (msg->m_analyze)
{
tabentry->last_anl_tuples = msg->m_tuples;
if (msg->m_autovacuum)
tabentry->autovac_analyze_timestamp = msg->m_vacuumtime;
else
tabentry->analyze_timestamp = msg->m_vacuumtime;
}
}
/* ----------
@ -2919,6 +2933,10 @@ pgstat_recv_analyze(PgStat_MsgAnalyze *msg, int len)
if (tabentry == NULL)
return;
if (msg->m_autovacuum)
tabentry->autovac_analyze_timestamp = msg->m_analyzetime;
else
tabentry->analyze_timestamp = msg->m_analyzetime;
tabentry->n_live_tuples = msg->m_live_tuples;
tabentry->n_dead_tuples = msg->m_dead_tuples;
tabentry->last_anl_tuples = msg->m_live_tuples + msg->m_dead_tuples;
@ -3005,6 +3023,10 @@ pgstat_recv_tabstat(PgStat_MsgTabstat *msg, int len)
tabentry->n_dead_tuples = tabmsg[i].t_tuples_updated +
tabmsg[i].t_tuples_deleted;
tabentry->last_anl_tuples = 0;
tabentry->vacuum_timestamp = 0;
tabentry->autovac_vacuum_timestamp = 0;
tabentry->analyze_timestamp = 0;
tabentry->autovac_analyze_timestamp = 0;
tabentry->blocks_fetched = tabmsg[i].t_blocks_fetched;
tabentry->blocks_hit = tabmsg[i].t_blocks_hit;