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Carry column aliases from the parser frontend. Enables queries like

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SELECT a FROM t1 tx (a);
Allow join syntax, including queries like
  SELECT * FROM t1 NATURAL JOIN t2;
Update RTE structure to hold column aliases in an Attr structure.
This commit is contained in:
Thomas G. Lockhart
2000-02-15 03:38:29 +00:00
parent 92c8437d8d
commit a344a6e7b5
27 changed files with 1102 additions and 324 deletions
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13
src/backend/catalog/heap.c
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@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/catalog/heap.c,v 1.120 2000/01/31 04:35:48 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/catalog/heap.c,v 1.121 2000/02/15 03:36:34 thomas Exp $
*
*
* INTERFACE ROUTINES
@@ -53,6 +53,7 @@
#include "optimizer/planmain.h"
#include "optimizer/tlist.h"
#include "optimizer/var.h"
#include "nodes/makefuncs.h"
#include "parser/parse_clause.h"
#include "parser/parse_expr.h"
#include "parser/parse_relation.h"
@@ -1719,7 +1720,8 @@ StoreAttrDefault(Relation rel, AttrNumber attnum, char *adbin,
*/
rte = makeNode(RangeTblEntry);
rte->relname = RelationGetRelationName(rel);
rte->refname = RelationGetRelationName(rel);
rte->ref = makeNode(Attr);
rte->ref->relname = RelationGetRelationName(rel);
rte->relid = RelationGetRelid(rel);
rte->inh = false;
rte->inFromCl = true;
@@ -1798,7 +1800,8 @@ StoreRelCheck(Relation rel, char *ccname, char *ccbin)
*/
rte = makeNode(RangeTblEntry);
rte->relname = RelationGetRelationName(rel);
rte->refname = RelationGetRelationName(rel);
rte->ref = makeNode(Attr);
rte->ref->relname = RelationGetRelationName(rel);
rte->relid = RelationGetRelid(rel);
rte->inh = false;
rte->inFromCl = true;
@@ -1919,8 +1922,8 @@ AddRelationRawConstraints(Relation rel,
* its sole rangetable entry. We need a ParseState for transformExpr.
*/
pstate = make_parsestate(NULL);
makeRangeTable(pstate, NULL, NULL);
addRangeTableEntry(pstate, relname, relname, false, true, true);
makeRangeTable(pstate, NULL);
addRangeTableEntry(pstate, relname, makeAttr(relname, NULL), false, true, true);
/*
* Process column default expressions.