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Standardize on the assumption that the arguments of a RowExpr correspond

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to the physical layout of the rowtype, ie, there are dummy arguments
corresponding to any dropped columns in the rowtype.  We formerly had a
couple of places that did it this way and several others that did not.
Fixes Gaetano Mendola's "cache lookup failed for type 0" bug of 5-Aug.
This commit is contained in:
Tom Lane
2004-08-17 18:47:09 +00:00
parent 388ffad040
commit fcaad7e2c1
8 changed files with 236 additions and 60 deletions
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9
src/include/parser/parsetree.h
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@@ -8,7 +8,7 @@
* Portions Copyright (c) 1996-2003, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/parser/parsetree.h,v 1.24 2004/05/26 04:41:46 neilc Exp $
* $PostgreSQL: pgsql/src/include/parser/parsetree.h,v 1.25 2004/08/17 18:47:09 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -55,6 +55,13 @@ extern char *get_rte_attribute_name(RangeTblEntry *rte, AttrNumber attnum);
extern void get_rte_attribute_type(RangeTblEntry *rte, AttrNumber attnum,
Oid *vartype, int32 *vartypmod);
/*
* Check whether an attribute of an RTE has been dropped (note that
* get_rte_attribute_type will fail on such an attr)
*/
extern bool get_rte_attribute_is_dropped(RangeTblEntry *rte,
AttrNumber attnum);
/* ----------------
* target list operations