Cross-data-type comparisons are now indexable by btrees, pursuant to my

pghackers proposal of 8-Nov.  All the existing cross-type comparison
operators (int2/int4/int8 and float4/float8) have appropriate support.
The original proposal of storing the right-hand-side datatype as part of
the primary key for pg_amop and pg_amproc got modified a bit in the event;
it is easier to store zero as the 'default' case and only store a nonzero
when the operator is actually cross-type.  Along the way, remove the
long-since-defunct bigbox_ops operator class.

1 files changed, 12 insertions, 1 deletions

diff --git a/src/backend/nodes/copyfuncs.c b/src/backend/nodes/copyfuncs.c
index c02270fa2e7..6cf8450567a 100644
--- a/src/backend/nodes/copyfuncs.c
+++ b/src/backend/nodes/copyfuncs.c
@@ -15,7 +15,7 @@
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/nodes/copyfuncs.c,v 1.266 2003/11/09 21:30:36 tgl Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/nodes/copyfuncs.c,v 1.267 2003/11/12 21:15:52 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -273,6 +273,17 @@ _copyIndexScan(IndexScan *from)
 		}
 		newnode->indxstrategy = newstrat;
 	}
+	/* this can become COPY_NODE_FIELD when OID lists are normal objects: */
+	{
+		List	*newsubtype = NIL;
+		List    *tmp;
+
+		foreach(tmp, from->indxsubtype)
+		{
+			newsubtype = lappend(newsubtype, listCopy(lfirst(tmp)));
+		}
+		newnode->indxsubtype = newsubtype;
+	}
 	COPY_SCALAR_FIELD(indxorderdir);
 
 	return newnode;