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First cut at full support for OUTER JOINs. There are still a few loose

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ends to clean up (see my message of same date to pghackers), but mostly
it works.  INITDB REQUIRED!
This commit is contained in:
Tom Lane
2000-09-12 21:07:18 +00:00
parent b5c0ab278b
commit ed5003c584
93 changed files with 6386 additions and 4262 deletions
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31
src/include/parser/parsetree.h
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@@ -8,41 +8,26 @@
* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: parsetree.h,v 1.10 2000/06/12 19:40:51 momjian Exp $
* $Id: parsetree.h,v 1.11 2000/09/12 21:07:12 tgl Exp $
*
*-------------------------------------------------------------------------
*/
#ifndef PARSETREE_H
#define PARSETREE_H /* include once only */
#define PARSETREE_H
#include "nodes/parsenodes.h"
#include "nodes/pg_list.h"
/* ----------------
* need pg_list.h for definitions of CAR(), etc. macros
* need pg_list.h for definitions of nth(), etc.
* ----------------
*/
/* ----------------
* range table macros
*
* parse tree:
* (root targetlist qual)
* ^^^^
* parse root:
* (numlevels cmdtype resrel rangetable priority ruleinfo nestdotinfo)
* ^^^^^^^^^^
* range table:
* (rtentry ...)
* rtentry:
* ----------------
*/
#define rt_relname(rt_entry) \
((!strcmp(((rt_entry)->ref->relname),"*OLD*") ||\
!strcmp(((rt_entry)->ref->relname),"*NEW*")) ? ((rt_entry)->ref->relname) : \
((char *)(rt_entry)->relname))
/*
* rt_fetch
* rt_store
@@ -51,22 +36,18 @@
*
*/
#define rt_fetch(rangetable_index, rangetable) \
((RangeTblEntry*)nth((rangetable_index)-1, rangetable))
((RangeTblEntry*) nth((rangetable_index)-1, rangetable))
#define rt_store(rangetable_index, rangetable, rt) \
set_nth(rangetable, (rangetable_index)-1, rt)
/*
* getrelid
* getrelname
*
* Given the range index of a relation, return the corresponding
* relation id or relation name.
* relation OID.
*/
#define getrelid(rangeindex,rangetable) \
((RangeTblEntry*)nth((rangeindex)-1, rangetable))->relid
#define getrelname(rangeindex, rangetable) \
rt_relname((RangeTblEntry*)nth((rangeindex)-1, rangetable))
(rt_fetch(rangeindex, rangetable)->relid)
#endif /* PARSETREE_H */