Replace functional-index facility with expressional indexes. Any column

of an index can now be a computed expression instead of a simple variable.
Restrictions on expressions are the same as for predicates (only immutable
functions, no sub-selects).  This fixes problems recently introduced with
inlining SQL functions, because the inlining transformation is applied to
both expression trees so the planner can still match them up.  Along the
way, improve efficiency of handling index predicates (both predicates and
index expressions are now cached by the relcache) and fix 7.3 oversight
that didn't record dependencies of predicate expressions.

1 files changed, 1 insertions, 4 deletions

diff --git a/src/include/optimizer/clauses.h b/src/include/optimizer/clauses.h
index 5a38d6ef2a..77dd376595 100644
--- a/src/include/optimizer/clauses.h
+++ b/src/include/optimizer/clauses.h
@@ -7,7 +7,7 @@
  * Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $Id: clauses.h,v 1.62 2003/02/04 00:50:01 tgl Exp $
+ * $Id: clauses.h,v 1.63 2003/05/28 16:04:02 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -28,9 +28,6 @@ extern Expr *make_opclause(Oid opno, Oid opresulttype, bool opretset,
 extern Node *get_leftop(Expr *clause);
 extern Node *get_rightop(Expr *clause);
 
-extern Expr *make_funcclause(Oid funcid, Oid funcresulttype, bool funcretset,
-							 CoercionForm funcformat, List *funcargs);
-
 extern bool not_clause(Node *clause);
 extern Expr *make_notclause(Expr *notclause);
 extern Expr *get_notclausearg(Expr *notclause);