From: Pavan Deolasee <pavan.deolasee@gmail.com>
Date: Tue, 16 Aug 2016 04:01:29 +0000 (+0530)
Subject: Make sure ON COMMIT actions are invoked only when transaction is still valid
X-Git-Tag: XL9_5_R1_3~3
X-Git-Url: http://git.postgresql.org/gitweb/static/gitweb.js?a=commitdiff_plain;h=97d9e5dc82c6764fcbeb92d16ccdbc09bac18f06;p=postgres-xl.git

Make sure ON COMMIT actions are invoked only when transaction is still valid

Per report by Agoston David
---

diff --git a/src/backend/commands/tablecmds.c b/src/backend/commands/tablecmds.c
index fe169f3585..024924e485 100644
--- a/src/backend/commands/tablecmds.c
+++ b/src/backend/commands/tablecmds.c
@@ -12396,6 +12396,16 @@ PreCommit_on_commit_actions(void)
 	ListCell   *l;
 	List	   *oids_to_truncate = NIL;
 
+#ifdef XCP
+	/*
+	 * If we are being called outside a valid transaction, do nothing. This can
+	 * only happen when the function gets called while we are still processing
+	 * CommitTransaction/PrepareTransaction
+	 */
+	if (GetTopTransactionIdIfAny() == InvalidTransactionId)
+		return;
+#endif
+
 	foreach(l, on_commits)
 	{
 		OnCommitItem *oc = (OnCommitItem *) lfirst(l);