Add operator strategy and comparison-value datatype fields to ScanKey.

Remove the 'strategy map' code, which was a large amount of mechanism
that no longer had any use except reverse-mapping from procedure OID to
strategy number.  Passing the strategy number to the index AM in the
first place is simpler and faster.
This is a preliminary step in planned support for cross-datatype index
operations.  I'm committing it now since the ScanKeyEntryInitialize()
API change touches quite a lot of files, and I want to commit those
changes before the tree drifts under me.

1 files changed, 3 insertions, 2 deletions

diff --git a/src/include/utils/lsyscache.h b/src/include/utils/lsyscache.h
index d6aaf2c1c25..36146f23d11 100644
--- a/src/include/utils/lsyscache.h
+++ b/src/include/utils/lsyscache.h
@@ -6,7 +6,7 @@
  * Portions Copyright (c) 1996-2003, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $Id: lsyscache.h,v 1.82 2003/10/04 18:22:59 tgl Exp $
+ * $Id: lsyscache.h,v 1.83 2003/11/09 21:30:38 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -25,7 +25,8 @@ typedef enum IOFuncSelector
 } IOFuncSelector;
 
 extern bool op_in_opclass(Oid opno, Oid opclass);
-extern bool op_requires_recheck(Oid opno, Oid opclass);
+extern void get_op_opclass_properties(Oid opno, Oid opclass,
+									  int *strategy, bool *recheck);
 extern Oid	get_opclass_member(Oid opclass, int16 strategy);
 extern Oid	get_op_hash_function(Oid opno);
 extern Oid	get_opclass_proc(Oid opclass, int16 procnum);