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Improve the checkpoint signaling mechanism so that the bgwriter can tell

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the difference between checkpoints forced due to WAL segment consumption
and checkpoints forced for other reasons (such as CREATE DATABASE).  Avoid
generating 'checkpoints are occurring too frequently' messages when the
checkpoint wasn't caused by WAL segment consumption.  Per gripe from
Chris K-L.
This commit is contained in:
Tom Lane
2005-06-30 00:00:52 +00:00
parent b5f7cff84f
commit 401de9c8be
6 changed files with 45 additions and 29 deletions
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4
src/backend/tcop/utility.c
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@@ -10,7 +10,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/tcop/utility.c,v 1.239 2005/06/28 05:09:00 tgl Exp $
* $PostgreSQL: pgsql/src/backend/tcop/utility.c,v 1.240 2005/06/30 00:00:51 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -989,7 +989,7 @@ ProcessUtility(Node *parsetree,
ereport(ERROR,
(errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
errmsg("must be superuser to do CHECKPOINT")));
RequestCheckpoint(true);
RequestCheckpoint(true, false);
break;
case T_ReindexStmt: