From b525073970c8df06aad71de382d5f6da276ee3a9 Mon Sep 17 00:00:00 2001
From: Robert Haas <rhaas@postgresql.org>
Date: Thu, 1 Jul 2010 14:11:03 +0000
Subject: [PATCH] Allow ALTER TABLE .. SET TABLESPACE to be interrupted.

Backpatch to 8.0, where tablespaces were introduced.

Guillaume Lelarge
---
 src/backend/commands/tablecmds.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/backend/commands/tablecmds.c b/src/backend/commands/tablecmds.c
index e4bcff6c38a..59c99fc3e1b 100644
--- a/src/backend/commands/tablecmds.c
+++ b/src/backend/commands/tablecmds.c
@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/commands/tablecmds.c,v 1.174.2.9 2009/12/09 21:58:42 tgl Exp $
+ *	  $PostgreSQL: pgsql/src/backend/commands/tablecmds.c,v 1.174.2.10 2010/07/01 14:11:03 rhaas Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -5863,6 +5863,9 @@ copy_relation_data(Relation rel, SMgrRelation dst)
 
 	for (blkno = 0; blkno < nblocks; blkno++)
 	{
+		/* If we got a cancel signal during the copy of the data, quit */
+		CHECK_FOR_INTERRUPTS();
+
 		smgrread(src, blkno, buf);
 
 		/* XLOG stuff */