From 6f9ff92cc0ff6a07d2fe38abe044286ee98d44a0 Mon Sep 17 00:00:00 2001
From: Bruce Momjian <bruce@momjian.us>
Date: Tue, 23 Nov 1999 20:07:06 +0000
Subject: Tid access method feature from Hiroshi Inoue, Inoue@tpf.co.jp

---
 src/backend/optimizer/util/pathnode.c | 28 +++++++++++++++++++++++++++-
 1 file changed, 27 insertions(+), 1 deletion(-)

(limited to 'src/backend/optimizer/util/pathnode.c')

diff --git a/src/backend/optimizer/util/pathnode.c b/src/backend/optimizer/util/pathnode.c
index f3b99f88929..0f9bf1b8bbb 100644
--- a/src/backend/optimizer/util/pathnode.c
+++ b/src/backend/optimizer/util/pathnode.c
@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/optimizer/util/pathnode.c,v 1.54 1999/08/16 02:17:58 tgl Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/optimizer/util/pathnode.c,v 1.55 1999/11/23 20:07:00 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -318,6 +318,32 @@ create_index_path(Query *root,
 	return pathnode;
 }
 
+/*
+ * create_tidscan_path
+ *	  Creates a path corresponding to a tid_direct scan, returning the
+ *	  pathnode.
+ *
+ */
+TidPath *
+create_tidscan_path(RelOptInfo *rel, List *tideval)
+{
+	TidPath	*pathnode = makeNode(TidPath);
+
+	pathnode->path.pathtype = T_TidScan;
+	pathnode->path.parent = rel;
+	pathnode->path.path_cost = 0.0;
+	pathnode->path.pathkeys = NIL;
+
+	pathnode->path.path_cost = cost_tidscan(tideval);
+	/* divide selectivity for each clause to get an equal selectivity
+	 * as IndexScan does OK ? 
+	*/
+	pathnode->tideval = copyObject(tideval);
+	pathnode->unjoined_relids = NIL;
+
+	return pathnode;
+}
+
 /*
  * create_nestloop_path
  *	  Creates a pathnode corresponding to a nestloop join between two
-- 
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