Make pgstatindex respond to cancel interrupts.

robertmhaas · robertmhaas · commit b0d5469a04aa · 2011-10-06T12:10:35.000-04:00
A similar problem for pgstattuple() was fixed in April of 2010 by commit 33065ef, but pgstatindex() seems to have been overlooked. Back-patch all the way, as with that commit, though not to 7.4 through 8.1, since those are now EOL.
diff --git a/contrib/pgstattuple/pgstatindex.c b/contrib/pgstattuple/pgstatindex.c
@@ -152,6 +152,8 @@ pgstatindex(PG_FUNCTION_ARGS)
 		Page		page;
 		BTPageOpaque opaque;
 
+		CHECK_FOR_INTERRUPTS();
+
 		/* Read and lock buffer */
 		buffer = ReadBuffer(rel, blkno);
 		LockBuffer(buffer, BUFFER_LOCK_SHARE);
