Add a CHECK_FOR_INTERRUPTS() in _bt_buildadd(). This fixes problem

with not responding to query cancel during the last stage of btree index
creation.

diff --git a/src/backend/access/nbtree/nbtsort.c b/src/backend/access/nbtree/nbtsort.c
index b55c0c9..0825c0e 100644 (file)
--- a/src/backend/access/nbtree/nbtsort.c
+++ b/src/backend/access/nbtree/nbtsort.c
@@ -56,7 +56,7 @@
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * IDENTIFICATION
- *       $PostgreSQL: pgsql/src/backend/access/nbtree/nbtsort.c,v 1.99 2006/03/05 15:58:21 momjian Exp $
+ *       $PostgreSQL: pgsql/src/backend/access/nbtree/nbtsort.c,v 1.100 2006/03/10 20:18:15 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -461,6 +461,12 @@ _bt_buildadd(BTWriteState *wstate, BTPageState *state, IndexTuple itup)
        Size            pgspc;
        Size            itupsz;
 
+       /*
+        * This is a handy place to check for cancel interrupts during the
+        * btree load phase of index creation.
+        */
+       CHECK_FOR_INTERRUPTS();
+
        npage = state->btps_page;
        nblkno = state->btps_blkno;
        last_off = state->btps_lastoff;