From 12f25e70a6feb40b7fba1dcc17deabcffcdfcc3d Mon Sep 17 00:00:00 2001
From: Tom Lane <tgl@sss.pgh.pa.us>
Date: Tue, 23 Oct 2007 01:44:40 +0000
Subject: Fix two-argument form of ts_rewrite() so it actually works for cases
 where a later rewrite rule should change a subtree modified by an earlier
 one. Per my gripe of a few days ago.

---
 src/backend/utils/adt/tsquery_util.c | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

(limited to 'src/backend/utils/adt/tsquery_util.c')

diff --git a/src/backend/utils/adt/tsquery_util.c b/src/backend/utils/adt/tsquery_util.c
index a4fd0937c4e..07561920024 100644
--- a/src/backend/utils/adt/tsquery_util.c
+++ b/src/backend/utils/adt/tsquery_util.c
@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/utils/adt/tsquery_util.c,v 1.4 2007/09/07 16:03:40 teodor Exp $
+ *	  $PostgreSQL: pgsql/src/backend/utils/adt/tsquery_util.c,v 1.5 2007/10/23 01:44:39 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -381,3 +381,20 @@ QTNCopy(QTNode *in)
 
 	return out;
 }
+
+void
+QTNClearFlags(QTNode *in, uint32 flags)
+{
+	/* since this function recurses, it could be driven to stack overflow. */
+	check_stack_depth();
+
+	in->flags &= ~flags;
+
+	if (in->valnode->type != QI_VAL)
+	{
+		int			i;
+
+		for (i = 0; i < in->nchild; i++)
+			QTNClearFlags(in->child[i], flags);
+	}
+}
-- 
cgit v1.2.3