reduce stat rereads

Author: feodor

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;