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Replace TupleTableSlot convention for whole-row variables and function

results with tuples as ordinary varlena Datums.  This commit does not
in itself do much for us, except eliminate the horrid memory leak
associated with evaluation of whole-row variables.  However, it lays the
groundwork for allowing composite types as table columns, and perhaps
some other useful features as well.  Per my proposal of a few days ago.
This commit is contained in:
Tom Lane
2004-04-01 21:28:47 +00:00
parent 8590a62b75
commit 375369acd1
60 changed files with 1779 additions and 1733 deletions

View File

@ -7,7 +7,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/rewrite/rewriteHandler.c,v 1.133 2004/01/14 23:01:55 tgl Exp $
* $PostgreSQL: pgsql/src/backend/rewrite/rewriteHandler.c,v 1.134 2004/04/01 21:28:44 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -523,16 +523,7 @@ build_column_default(Relation rel, int attrno)
* No per-column default, so look for a default for the type
* itself.
*/
if (att_tup->attisset)
{
/*
* Set attributes are represented as OIDs no matter what the
* set element type is, and the element type's default is
* irrelevant too.
*/
}
else
expr = get_typdefault(atttype);
expr = get_typdefault(atttype);
}
if (expr == NULL)