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Avoid WAL-logging individual tuple insertions during CREATE TABLE AS

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(a/k/a SELECT INTO).  Instead, flush and fsync the whole relation before
committing.  We do still need the WAL log when PITR is active, however.
Simon Riggs and Tom Lane.
This commit is contained in:
Tom Lane
2005-06-20 18:37:02 +00:00
parent 1bfdd1a893
commit b95ae32b41
9 changed files with 108 additions and 27 deletions
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5
src/include/access/heapam.h
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@@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/access/heapam.h,v 1.101 2005/06/06 17:01:24 tgl Exp $
* $PostgreSQL: pgsql/src/include/access/heapam.h,v 1.102 2005/06/20 18:37:01 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -156,7 +156,8 @@ extern ItemPointer heap_get_latest_tid(Relation relation, Snapshot snapshot,
ItemPointer tid);
extern void setLastTid(const ItemPointer tid);
extern Oid heap_insert(Relation relation, HeapTuple tup, CommandId cid);
extern Oid heap_insert(Relation relation, HeapTuple tup, CommandId cid,
bool use_wal, bool use_fsm);
extern HTSU_Result heap_delete(Relation relation, ItemPointer tid, ItemPointer ctid,
CommandId cid, Snapshot crosscheck, bool wait);
extern HTSU_Result heap_update(Relation relation, ItemPointer otid, HeapTuple tup,

4
src/include/access/hio.h
View File

@@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/access/hio.h,v 1.27 2004/12/31 22:03:21 pgsql Exp $
* $PostgreSQL: pgsql/src/include/access/hio.h,v 1.28 2005/06/20 18:37:01 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -19,6 +19,6 @@
extern void RelationPutHeapTuple(Relation relation, Buffer buffer,
HeapTuple tuple);
extern Buffer RelationGetBufferForTuple(Relation relation, Size len,
Buffer otherBuffer);
Buffer otherBuffer, bool use_fsm);
#endif /* HIO_H */