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authorTom Lane <tgl@sss.pgh.pa.us>2003-11-12 21:15:59 +0000
committerTom Lane <tgl@sss.pgh.pa.us>2003-11-12 21:15:59 +0000
commitfa5c8a055a02e44f446e4593e397c33a572c4d67 (patch)
tree9c0a7ded5a88c082c28dbe2b431660813abd72b8 /src/backend/access/gist/gistscan.c
parent49f98fa833407b4e4252e42522e640ec8a0d08b2 (diff)
downloadpostgresql-fa5c8a055a02e44f446e4593e397c33a572c4d67.tar.gz
postgresql-fa5c8a055a02e44f446e4593e397c33a572c4d67.zip
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.
Diffstat (limited to 'src/backend/access/gist/gistscan.c')
-rw-r--r--src/backend/access/gist/gistscan.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/src/backend/access/gist/gistscan.c b/src/backend/access/gist/gistscan.c
index 960d1c2f25b..9b9d1f60341 100644
--- a/src/backend/access/gist/gistscan.c
+++ b/src/backend/access/gist/gistscan.c
@@ -8,7 +8,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/access/gist/gistscan.c,v 1.48 2003/11/09 21:30:35 tgl Exp $
+ * $Header: /cvsroot/pgsql/src/backend/access/gist/gistscan.c,v 1.49 2003/11/12 21:15:46 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -109,7 +109,8 @@ gistrescan(PG_FUNCTION_ARGS)
* Modify the scan key so that the Consistent function is called
* for all comparisons. The original operator is passed to the
* Consistent function in the form of its strategy number, which
- * is available from the sk_strategy field.
+ * is available from the sk_strategy field, and its subtype from
+ * the sk_subtype field.
*/
for (i = 0; i < s->numberOfKeys; i++)
{