diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c
index eec20b250d..73131863c0 100644
--- a/src/backend/optimizer/path/allpaths.c
+++ b/src/backend/optimizer/path/allpaths.c
@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/optimizer/path/allpaths.c,v 1.35 1999/02/15 03:22:03 momjian Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/optimizer/path/allpaths.c,v 1.36 1999/02/15 03:59:27 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -211,7 +211,7 @@ make_one_rel_by_joins(Query *root, List *outer_rels, int levels_needed)
 			 * involves the join relation to the joininfo list of the
 			 * other relation
 			 */
-			add_new_joininfos(root, joined_rels, outer_rels);
+			add_rel_to_rel_joininfos(root, joined_rels, outer_rels);
 		}
 #endif
 
@@ -236,12 +236,12 @@ make_one_rel_by_joins(Query *root, List *outer_rels, int levels_needed)
 			 * prune rels that have been completely incorporated into new
 			 * join rels
 			 */
-			outer_rels = prune_oldrels(outer_rels);
+			outer_rels = del_rels_all_bushy_inactive(outer_rels);
 
 			/*
 			 * merge join rels if then contain the same list of base rels
 			 */
-			outer_rels = merge_joinrels(joined_rels, outer_rels);
+			outer_rels = merge_rels_with_same_relids(joined_rels, outer_rels);
 			root->join_rel_list = outer_rels;
 		}
 		else
diff --git a/src/backend/optimizer/path/joinrels.c b/src/backend/optimizer/path/joinrels.c
index cd0a082b73..4ff091b4b0 100644
--- a/src/backend/optimizer/path/joinrels.c
+++ b/src/backend/optimizer/path/joinrels.c
@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/optimizer/path/joinrels.c,v 1.23 1999/02/15 03:22:05 momjian Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/optimizer/path/joinrels.c,v 1.24 1999/02/15 03:59:27 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -373,7 +373,7 @@ new_joininfo_list(List *joininfo_list, List *join_relids)
 }
 
 /*
- * add_new_joininfos
+ * add_rel_to_rel_joininfos
  *	  For each new join relation, create new joininfos that
  *	  use the join relation as inner relation, and add
  *	  the new joininfos to those rel nodes that still
@@ -384,7 +384,7 @@ new_joininfo_list(List *joininfo_list, List *join_relids)
  * Modifies the joininfo field of appropriate rel nodes.
  */
 void
-add_new_joininfos(Query *root, List *joinrels, List *outerrels)
+add_rel_to_rel_joininfos(Query *root, List *joinrels, List *outerrels)
 {
 	List	   *xjoinrel = NIL;
 	List	   *xrelid = NIL;
@@ -462,6 +462,7 @@ add_new_joininfos(Query *root, List *joinrels, List *outerrels)
 			}
 		}
 	}
+
 	foreach(xrel, outerrels)
 	{
 		RelOptInfo *rel = (RelOptInfo *) lfirst(xrel);
diff --git a/src/backend/optimizer/path/prune.c b/src/backend/optimizer/path/prune.c
index ab1e8fff66..2c9e600e57 100644
--- a/src/backend/optimizer/path/prune.c
+++ b/src/backend/optimizer/path/prune.c
@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/optimizer/path/Attic/prune.c,v 1.33 1999/02/15 03:22:06 momjian Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/optimizer/path/Attic/prune.c,v 1.34 1999/02/15 03:59:27 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -48,7 +48,7 @@ merge_rels_with_same_relids(List *rel_list)
 }
 
 /*
- * merge_rel_with_same_relids
+  * merge_rel_with_same_relids
  *	  Prunes those relations from 'other_rels' that are redundant with
  *	  'rel'.  A relation is redundant if it is built up of the same
  *	  relations as 'rel'.  Paths for the redundant relation are merged into
@@ -108,7 +108,7 @@ rels_set_cheapest(List *rel_list)
 
 #ifdef NOT_USED
 /*
- * merge_joinrels
+ * merge_rels_with_same_relids
  *	  Given two lists of rel nodes that are already
  *	  pruned, merge them into one pruned rel node list
  *
@@ -118,7 +118,7 @@ rels_set_cheapest(List *rel_list)
  * Returns one pruned rel node list
  */
 List *
-merge_joinrels(List *rel_list1, List *rel_list2)
+merge_rels_with_same_relids(List *rel_list1, List *rel_list2)
 {
 	List	   *xrel = NIL;
 
@@ -132,7 +132,7 @@ merge_joinrels(List *rel_list1, List *rel_list2)
 }
 
 /*
- * prune_oldrels
+ * del_rels_all_bushy_inactive
  *	  If all the joininfo's in a rel node are bushy_inactive,
  *	  that means that this node has been joined into
  *	  other nodes in all possible ways, therefore
@@ -144,7 +144,7 @@ merge_joinrels(List *rel_list1, List *rel_list2)
  * Returns a new list of rel nodes
  */
 List *
-prune_oldrels(List *old_rels)
+del_rels_all_bushy_inactive(List *old_rels)
 {
 	RelOptInfo *rel;
 	List	   *joininfo_list,
diff --git a/src/include/optimizer/paths.h b/src/include/optimizer/paths.h
index 990cf79224..1d728529d0 100644
--- a/src/include/optimizer/paths.h
+++ b/src/include/optimizer/paths.h
@@ -7,7 +7,7 @@
  *
  * Copyright (c) 1994, Regents of the University of California
  *
- * $Id: paths.h,v 1.17 1999/02/15 03:22:31 momjian Exp $
+ * $Id: paths.h,v 1.18 1999/02/15 03:59:28 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -78,7 +78,7 @@ extern MergeInfo *match_order_mergeinfo(PathOrder *ordering,
  *	  routines to determine which relations to join
  */
 extern List *make_rels_by_joins(Query *root, List *outer_rels);
-extern void add_new_joininfos(Query *root, List *joinrels, List *outerrels);
+extern void add_rel_to_rel_joininfos(Query *root, List *joinrels, List *outerrels);
 extern List *make_rels_by_clause_joins(Query *root, RelOptInfo *outer_rel,
 								List *joininfo_list, List *only_relids);
 extern List *make_rels_by_clauseless_joins(RelOptInfo *outer_rel,