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

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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
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6
src/backend/rewrite/rewriteHandler.c
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@ -7,7 +7,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/rewrite/rewriteHandler.c,v 1.105 2002/08/02 18:15:07 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/rewrite/rewriteHandler.c,v 1.106 2002/08/26 17:53:58 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -381,8 +381,8 @@ process_matched_tle(TargetEntry *src_tle,
((ArrayRef *) src_tle->expr)->refassgnexpr == NULL ||
prior_tle->expr == NULL || !IsA(prior_tle->expr, ArrayRef) ||
((ArrayRef *) prior_tle->expr)->refassgnexpr == NULL ||
((ArrayRef *) src_tle->expr)->refelemtype !=
((ArrayRef *) prior_tle->expr)->refelemtype)
((ArrayRef *) src_tle->expr)->refrestype !=
((ArrayRef *) prior_tle->expr)->refrestype)
elog(ERROR, "Multiple assignments to same attribute \"%s\"",
resdom->resname);