Avoid infinite recursion when dumping new planner EquivalenceClass trees.

diff --git a/src/backend/nodes/outfuncs.c b/src/backend/nodes/outfuncs.c
index 939c21f45a45d9da8fdd14c7ad5e207036f560d3..d3f18c1ce7366bf14bf4366d3802f71e7036ce37 100644 (file)
--- a/src/backend/nodes/outfuncs.c
+++ b/src/backend/nodes/outfuncs.c
@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *   $PostgreSQL: pgsql/src/backend/nodes/outfuncs.c,v 1.296 2007/02/03 14:06:54 petere Exp $
+ *   $PostgreSQL: pgsql/src/backend/nodes/outfuncs.c,v 1.297 2007/02/12 17:19:30 tgl Exp $
  *
  * NOTES
  *   Every node type that can appear in stored rules' parsetrees *must*
@@ -1354,10 +1354,10 @@ _outRestrictInfo(StringInfo str, RestrictInfo *node)
    WRITE_BITMAPSET_FIELD(left_relids);
    WRITE_BITMAPSET_FIELD(right_relids);
    WRITE_NODE_FIELD(orclause);
-   WRITE_NODE_FIELD(parent_ec);
+   /* don't write parent_ec, leads to infinite recursion in plan tree dump */
    WRITE_NODE_FIELD(mergeopfamilies);
-   WRITE_NODE_FIELD(left_ec);
-   WRITE_NODE_FIELD(right_ec);
+   /* don't write left_ec, leads to infinite recursion in plan tree dump */
+   /* don't write right_ec, leads to infinite recursion in plan tree dump */
    WRITE_NODE_FIELD(left_em);
    WRITE_NODE_FIELD(right_em);
    WRITE_BOOL_FIELD(outer_is_left);