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Simplify pg_am representation of ordering-capable access methods:

provide just a boolean 'amcanorder', instead of fields that specify the
sort operator strategy numbers.  We have decided to require ordering-capable
AMs to use btree-compatible strategy numbers, so the old fields are
overkill (and indeed misleading about what's allowed).
This commit is contained in:
Tom Lane
2007-01-20 23:13:01 +00:00
parent c82cc604f5
commit fcf4b146c6
8 changed files with 58 additions and 80 deletions

View File

@@ -9,7 +9,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/utils/adt/ruleutils.c,v 1.244 2007/01/20 01:08:42 neilc Exp $
* $PostgreSQL: pgsql/src/backend/utils/adt/ruleutils.c,v 1.245 2007/01/20 23:13:01 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -767,7 +767,7 @@ pg_get_indexdef_worker(Oid indexrelid, int colno, int prettyFlags)
&buf);
/* Add options if relevant */
if (amrec->amorderstrategy > 0)
if (amrec->amcanorder)
{
/* if it supports sort ordering, report DESC and NULLS opts */
if (opt & INDOPTION_DESC)