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Write a WAL record whenever we perform an operation without WAL-logging

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that would've been WAL-logged if archiving was enabled. If we encounter
such records in archive recovery anyway, we know that some data is
missing from the log. A WARNING is emitted in that case.

Original patch by Fujii Masao, with changes by me.
This commit is contained in:
Heikki Linnakangas
2010-01-20 19:43:40 +00:00
parent 47ce95a7b9
commit 09b115f706
7 changed files with 100 additions and 7 deletions
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8
src/backend/access/heap/heapam.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/access/heap/heapam.c,v 1.282 2010/01/14 11:08:00 sriggs Exp $
* $PostgreSQL: pgsql/src/backend/access/heap/heapam.c,v 1.283 2010/01/20 19:43:40 heikki Exp $
*
*
* INTERFACE ROUTINES
@ -5074,10 +5074,16 @@ heap2_desc(StringInfo buf, uint8 xl_info, char *rec)
void
heap_sync(Relation rel)
{
char reason[NAMEDATALEN + 30];
/* temp tables never need fsync */
if (rel->rd_istemp)
return;
snprintf(reason, sizeof(reason), "heap inserts on \"%s\"",
RelationGetRelationName(rel));
XLogReportUnloggedStatement(reason);
/* main heap */
FlushRelationBuffers(rel);
/* FlushRelationBuffers will have opened rd_smgr */