From: Teodor Sigaev <teodor@sigaev.ru>
Date: Fri, 7 Apr 2017 14:20:25 +0000 (+0300)
Subject: reduce stat rereads
X-Git-Url: http://sigaev.ru/git/gitweb.cgi?a=commitdiff_plain;h=c9269992af6697609f1f5cb549ade03bab4cf1ba;p=online_analyze.git

reduce stat rereads
---

diff --git a/online_analyze.c b/online_analyze.c
index b2f8199..dba4226 100644
--- a/online_analyze.c
+++ b/online_analyze.c
@@ -442,6 +442,8 @@ makeAnalyze(Oid relOid, CmdKind operation, int64 naffected)
 
 	Assert(rstat->tableid == relOid);
 
+	elog(NOTICE,"makeAnalyze op:%d %u", operation, naffected);
+
 	if (operation != CK_TRUNCATE &&
 		(found == false || rstat->rereadStat == true))
 	{
@@ -466,9 +468,6 @@ makeAnalyze(Oid relOid, CmdKind operation, int64 naffected)
 		}
 	}
 
-	if (naffected == 0)
-		rstat->rereadStat = true;
-
 	if (newTable ||
 		/* force analyze from after truncate */
 		operation == CK_TRUNCATE || (
@@ -555,6 +554,7 @@ makeAnalyze(Oid relOid, CmdKind operation, int64 naffected)
 		{
 			case CK_INSERT:
 				rstat->n_tuples += naffected;
+				rstat->rereadStat = false;
 				break;
 			case CK_UPDATE:
 				rstat->n_tuples += naffected;
@@ -565,6 +565,7 @@ makeAnalyze(Oid relOid, CmdKind operation, int64 naffected)
 				break;
 			case CK_TRUNCATE:
 				rstat->n_tuples = 0;
+				rstat->rereadStat = false;
 				break;
 			default:
 				break;