Fix failure of executor/hashjoin.h to compile standalone.

tglsfdc · tglsfdc · commit 37b61a69f30e · 2010-12-27T12:20:09.000-05:00
Noted while experimenting with cpluspluscheck.
diff --git a/src/include/executor/hashjoin.h b/src/include/executor/hashjoin.h
@@ -15,6 +15,7 @@
 #define HASHJOIN_H
 
 #include "fmgr.h"
+#include "nodes/execnodes.h"
 #include "storage/buffile.h"
 
 /* ----------------------------------------------------------------
