1 files changed, 0 insertions, 118 deletions
diff --git a/src/backend/optimizer/path/hashutils.c b/src/backend/optimizer/path/hashutils.c
deleted file mode 100644
index d6456af6da3..00000000000
--- a/src/backend/optimizer/path/hashutils.c
+++ /dev/null
@@ -1,118 +0,0 @@
-/*-------------------------------------------------------------------------
- *
- * hashutils.c
- *	  Utilities for finding applicable merge clauses and pathkeys
- *
- * Copyright (c) 1994, Regents of the University of California
- *
- *
- * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/optimizer/path/Attic/hashutils.c,v 1.18 1999/07/16 04:59:14 momjian Exp $
- *
- *-------------------------------------------------------------------------
- */
-#include "postgres.h"
-
-#include "optimizer/clauses.h"
-#include "optimizer/paths.h"
-
-
-static HashInfo *match_hashop_hashinfo(Oid hashop, List *hashinfo_list);
-
-/*
- * group_clauses_by_hashop
- *	  If a join clause node in 'restrictinfo_list' is hashjoinable, store
- *	  it within a hashinfo node containing other clause nodes with the same
- *	  hash operator.
- *
- * 'restrictinfo_list' is the list of restrictinfo nodes
- * 'inner_relids' is the list of relids in the inner join relation
- *	 (used to determine whether a join var is inner or outer)
- *
- * Returns the new list of hashinfo nodes.
- *
- */
-List *
-group_clauses_by_hashop(List *restrictinfo_list,
-						Relids inner_relids)
-{
-	List	   *hashinfo_list = NIL;
-	RestrictInfo *restrictinfo;
-	List	   *i;
-	Oid			hashjoinop;
-
-	foreach(i, restrictinfo_list)
-	{
-		restrictinfo = (RestrictInfo *) lfirst(i);
-		hashjoinop = restrictinfo->hashjoinoperator;
-
-		/*
-		 * Create a new hashinfo node and add it to 'hashinfo_list' if one
-		 * does not yet exist for this hash operator.
-		 */
-		if (hashjoinop)
-		{
-			Expr	   *clause = restrictinfo->clause;
-			Var		   *leftop = get_leftop(clause);
-			Var		   *rightop = get_rightop(clause);
-			HashInfo   *xhashinfo;
-			JoinKey    *joinkey;
-
-			xhashinfo = match_hashop_hashinfo(hashjoinop, hashinfo_list);
-			joinkey = makeNode(JoinKey);
-			if (intMember(leftop->varno, inner_relids))
-			{
-				joinkey->outer = rightop;
-				joinkey->inner = leftop;
-			}
-			else
-			{
-				joinkey->outer = leftop;
-				joinkey->inner = rightop;
-			}
-
-			if (xhashinfo == NULL)
-			{
-				xhashinfo = makeNode(HashInfo);
-				xhashinfo->hashop = hashjoinop;
-				xhashinfo->jmethod.jmkeys = NIL;
-				xhashinfo->jmethod.clauses = NIL;
-				hashinfo_list = lcons(xhashinfo, hashinfo_list);
-			}
-
-			xhashinfo->jmethod.clauses = lcons(clause,
-											 xhashinfo->jmethod.clauses);
-			xhashinfo->jmethod.jmkeys = lcons(joinkey,
-											  xhashinfo->jmethod.jmkeys);
-		}
-	}
-	return hashinfo_list;
-}
-
-
-/*
- * match_hashop_hashinfo
- *	  Searches the list 'hashinfo_list' for a hashinfo node whose hash op
- *	  field equals 'hashop'.
- *
- * Returns the node if it exists.
- *
- */
-static HashInfo *
-match_hashop_hashinfo(Oid hashop, List *hashinfo_list)
-{
-	Oid			key = 0;
-	HashInfo   *xhashinfo = (HashInfo *) NULL;
-	List	   *i = NIL;
-
-	foreach(i, hashinfo_list)
-	{
-		xhashinfo = (HashInfo *) lfirst(i);
-		key = xhashinfo->hashop;
-		if (hashop == key)
-		{						/* found */
-			return xhashinfo;	/* should be a hashinfo node ! */
-		}
-	}
-	return (HashInfo *) NIL;
-}