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Modify array operations to include array's element type OID in the

array header, and to compute sizing and alignment of array elements
the same way normal tuple access operations do --- viz, using the
tupmacs.h macros att_addlength and att_align.  This makes the world
safe for arrays of cstrings or intervals, and should make it much
easier to write array-type-polymorphic functions; as examples see
the cleanups of array_out and contrib/array_iterator.  By Joe Conway
and Tom Lane.
This commit is contained in:
Tom Lane
2002-08-26 17:54:02 +00:00
parent 8009c27592
commit 5cabcfccce
38 changed files with 559 additions and 435 deletions

View File

@@ -20,7 +20,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/nodes/equalfuncs.c,v 1.153 2002/08/19 15:08:46 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/nodes/equalfuncs.c,v 1.154 2002/08/26 17:53:57 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -258,7 +258,7 @@ _equalSubLink(SubLink *a, SubLink *b)
static bool
_equalArrayRef(ArrayRef *a, ArrayRef *b)
{
if (a->refelemtype != b->refelemtype)
if (a->refrestype != b->refrestype)
return false;
if (a->refattrlength != b->refattrlength)
return false;
@@ -266,13 +266,17 @@ _equalArrayRef(ArrayRef *a, ArrayRef *b)
return false;
if (a->refelembyval != b->refelembyval)
return false;
if (a->refelemalign != b->refelemalign)
return false;
if (!equal(a->refupperindexpr, b->refupperindexpr))
return false;
if (!equal(a->reflowerindexpr, b->reflowerindexpr))
return false;
if (!equal(a->refexpr, b->refexpr))
return false;
return equal(a->refassgnexpr, b->refassgnexpr);
if (!equal(a->refassgnexpr, b->refassgnexpr))
return false;
return true;
}
static bool