mirror of https://github.com/postgres/postgres
recreated since the start of our transaction, our first reference to it errored out because we'd try to reuse our old relcache entry for it. Do this by accepting SI inval messages just before relcache search in heap_openr, so that dead relcache entries will be flushed before we search. Also, break heap_open/openr into two pairs of routines, relation_open(r) and heap_open(r). The relation_open routines make no tests on relkind and so can be used to open anything that has a pg_class entry. The heap_open routines are wrappers that add a relkind test to preserve their established behavior. Use the relation_open routines in several places that had various kluge solutions for opening rels that might be either heap or index rels. Also, remove the old 'heap stats' code that's been superseded by Jan's stats collector, and clean up some inconsistencies in error reporting between the different types of ALTER TABLE.REL7_2_STABLE
Tom Lane
24 years ago
parent
5d4b94085e
commit
7d05310828
@ -1,333 +0,0 @@ |
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/*-------------------------------------------------------------------------
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* |
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* stats.c |
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* heap access method debugging statistic collection routines |
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* |
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* Portions Copyright (c) 1996-2001, 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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* $Header: /cvsroot/pgsql/src/backend/access/heap/Attic/stats.c,v 1.25 2001/10/25 05:49:21 momjian Exp $ |
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* |
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* NOTES |
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* initam should be moved someplace else. |
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* |
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*------------------------------------------------------------------------- |
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*/ |
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#include <time.h> |
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#include "postgres.h" |
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#include "access/heapam.h" |
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static void InitHeapAccessStatistics(void); |
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/* ----------------
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* InitHeapAccessStatistics |
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* ---------------- |
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*/ |
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HeapAccessStatistics heap_access_stats = (HeapAccessStatistics) NULL; |
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static void |
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InitHeapAccessStatistics() |
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{ |
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MemoryContext oldContext; |
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HeapAccessStatistics stats; |
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/*
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* make sure we don't initialize things twice |
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*/ |
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if (heap_access_stats != NULL) |
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return; |
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/*
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* allocate statistics structure from the top memory context |
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*/ |
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oldContext = MemoryContextSwitchTo(TopMemoryContext); |
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stats = (HeapAccessStatistics) |
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palloc(sizeof(HeapAccessStatisticsData)); |
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/*
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* initialize fields to default values |
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*/ |
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stats->global_open = 0; |
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stats->global_openr = 0; |
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stats->global_close = 0; |
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stats->global_beginscan = 0; |
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stats->global_rescan = 0; |
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stats->global_endscan = 0; |
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stats->global_getnext = 0; |
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stats->global_fetch = 0; |
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stats->global_insert = 0; |
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stats->global_delete = 0; |
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stats->global_replace = 0; |
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stats->global_mark4update = 0; |
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stats->global_markpos = 0; |
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stats->global_restrpos = 0; |
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stats->global_BufferGetRelation = 0; |
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stats->global_RelationIdGetRelation = 0; |
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stats->global_RelationIdGetRelation_Buf = 0; |
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stats->global_getreldesc = 0; |
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stats->global_heapgettup = 0; |
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stats->global_RelationPutHeapTuple = 0; |
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stats->global_RelationPutLongHeapTuple = 0; |
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stats->local_open = 0; |
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stats->local_openr = 0; |
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stats->local_close = 0; |
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stats->local_beginscan = 0; |
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stats->local_rescan = 0; |
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stats->local_endscan = 0; |
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stats->local_getnext = 0; |
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stats->local_fetch = 0; |
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stats->local_insert = 0; |
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stats->local_delete = 0; |
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stats->local_replace = 0; |
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stats->local_mark4update = 0; |
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stats->local_markpos = 0; |
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stats->local_restrpos = 0; |
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stats->local_BufferGetRelation = 0; |
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stats->local_RelationIdGetRelation = 0; |
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stats->local_RelationIdGetRelation_Buf = 0; |
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stats->local_getreldesc = 0; |
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stats->local_heapgettup = 0; |
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stats->local_RelationPutHeapTuple = 0; |
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stats->local_RelationPutLongHeapTuple = 0; |
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stats->local_RelationNameGetRelation = 0; |
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stats->global_RelationNameGetRelation = 0; |
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/*
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* record init times |
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*/ |
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time(&stats->init_global_timestamp); |
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time(&stats->local_reset_timestamp); |
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time(&stats->last_request_timestamp); |
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/*
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* return to old memory context |
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*/ |
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MemoryContextSwitchTo(oldContext); |
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heap_access_stats = stats; |
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} |
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#ifdef NOT_USED |
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/* ----------------
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* ResetHeapAccessStatistics |
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* ---------------- |
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*/ |
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void |
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ResetHeapAccessStatistics() |
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{ |
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HeapAccessStatistics stats; |
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/*
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* do nothing if stats aren't initialized |
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*/ |
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if (heap_access_stats == NULL) |
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return; |
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stats = heap_access_stats; |
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/*
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* reset local counts |
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*/ |
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stats->local_open = 0; |
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stats->local_openr = 0; |
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stats->local_close = 0; |
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stats->local_beginscan = 0; |
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stats->local_rescan = 0; |
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stats->local_endscan = 0; |
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stats->local_getnext = 0; |
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stats->local_fetch = 0; |
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stats->local_insert = 0; |
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stats->local_delete = 0; |
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stats->local_replace = 0; |
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stats->local_mark4update = 0; |
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stats->local_markpos = 0; |
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stats->local_restrpos = 0; |
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stats->local_BufferGetRelation = 0; |
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stats->local_RelationIdGetRelation = 0; |
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stats->local_RelationIdGetRelation_Buf = 0; |
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stats->local_getreldesc = 0; |
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stats->local_heapgettup = 0; |
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stats->local_RelationPutHeapTuple = 0; |
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stats->local_RelationPutLongHeapTuple = 0; |
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/*
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* reset local timestamps |
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*/ |
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time(&stats->local_reset_timestamp); |
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time(&stats->last_request_timestamp); |
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} |
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#endif |
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#ifdef NOT_USED |
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/* ----------------
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* GetHeapAccessStatistics |
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* ---------------- |
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*/ |
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HeapAccessStatistics |
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GetHeapAccessStatistics() |
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{ |
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HeapAccessStatistics stats; |
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/*
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* return nothing if stats aren't initialized |
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*/ |
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if (heap_access_stats == NULL) |
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return NULL; |
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/*
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* record the current request time |
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*/ |
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time(&heap_access_stats->last_request_timestamp); |
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/*
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* allocate a copy of the stats and return it to the caller. |
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*/ |
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stats = (HeapAccessStatistics) |
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palloc(sizeof(HeapAccessStatisticsData)); |
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memmove(stats, |
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heap_access_stats, |
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sizeof(HeapAccessStatisticsData)); |
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return stats; |
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} |
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#endif |
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#ifdef NOT_USED |
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/* ----------------
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* PrintHeapAccessStatistics |
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* ---------------- |
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*/ |
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void |
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PrintHeapAccessStatistics(HeapAccessStatistics stats) |
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{ |
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/*
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* return nothing if stats aren't valid |
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*/ |
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if (stats == NULL) |
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return; |
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printf("======== heap am statistics ========\n"); |
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printf("init_global_timestamp: %s", |
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ctime(&(stats->init_global_timestamp))); |
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printf("local_reset_timestamp: %s", |
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ctime(&(stats->local_reset_timestamp))); |
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printf("last_request_timestamp: %s", |
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ctime(&(stats->last_request_timestamp))); |
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printf("local/global_open: %6d/%6d\n", |
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stats->local_open, stats->global_open); |
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printf("local/global_openr: %6d/%6d\n", |
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stats->local_openr, stats->global_openr); |
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printf("local/global_close: %6d/%6d\n", |
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stats->local_close, stats->global_close); |
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printf("local/global_beginscan: %6d/%6d\n", |
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stats->local_beginscan, stats->global_beginscan); |
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printf("local/global_rescan: %6d/%6d\n", |
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stats->local_rescan, stats->global_rescan); |
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printf("local/global_endscan: %6d/%6d\n", |
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stats->local_endscan, stats->global_endscan); |
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printf("local/global_getnext: %6d/%6d\n", |
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stats->local_getnext, stats->global_getnext); |
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printf("local/global_fetch: %6d/%6d\n", |
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stats->local_fetch, stats->global_fetch); |
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printf("local/global_insert: %6d/%6d\n", |
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stats->local_insert, stats->global_insert); |
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printf("local/global_delete: %6d/%6d\n", |
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stats->local_delete, stats->global_delete); |
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printf("local/global_replace: %6d/%6d\n", |
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stats->local_replace, stats->global_replace); |
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printf("local/global_mark4update: %6d/%6d\n", |
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stats->local_mark4update, stats->global_mark4update); |
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printf("local/global_markpos: %6d/%6d\n", |
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stats->local_markpos, stats->global_markpos); |
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printf("local/global_restrpos: %6d/%6d\n", |
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stats->local_restrpos, stats->global_restrpos); |
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printf("================\n"); |
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printf("local/global_BufferGetRelation: %6d/%6d\n", |
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stats->local_BufferGetRelation, |
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stats->global_BufferGetRelation); |
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printf("local/global_RelationIdGetRelation: %6d/%6d\n", |
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stats->local_RelationIdGetRelation, |
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stats->global_RelationIdGetRelation); |
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printf("local/global_RelationIdGetRelation_Buf: %6d/%6d\n", |
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stats->local_RelationIdGetRelation_Buf, |
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stats->global_RelationIdGetRelation_Buf); |
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printf("local/global_getreldesc: %6d/%6d\n", |
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stats->local_getreldesc, stats->global_getreldesc); |
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printf("local/global_heapgettup: %6d/%6d\n", |
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stats->local_heapgettup, stats->global_heapgettup); |
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printf("local/global_RelationPutHeapTuple: %6d/%6d\n", |
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stats->local_RelationPutHeapTuple, |
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stats->global_RelationPutHeapTuple); |
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printf("local/global_RelationPutLongHeapTuple: %6d/%6d\n", |
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stats->local_RelationPutLongHeapTuple, |
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stats->global_RelationPutLongHeapTuple); |
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printf("===================================\n"); |
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printf("\n"); |
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} |
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#endif |
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#ifdef NOT_USED |
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/* ----------------
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* PrintAndFreeHeapAccessStatistics |
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* ---------------- |
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*/ |
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void |
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PrintAndFreeHeapAccessStatistics(HeapAccessStatistics stats) |
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{ |
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PrintHeapAccessStatistics(stats); |
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if (stats != NULL) |
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pfree(stats); |
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} |
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#endif |
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/* ----------------------------------------------------------------
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* access method initialization |
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* ---------------------------------------------------------------- |
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*/ |
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/* ----------------
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* initam should someday be moved someplace else. |
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* ---------------- |
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*/ |
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void |
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initam(void) |
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{ |
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/*
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* initialize heap statistics. |
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*/ |
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InitHeapAccessStatistics(); |
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} |
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