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Change scoping of table and join refnames to conform to SQL92: a JOIN

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clause with an alias is a <subquery> and therefore hides table references
appearing within it, according to the spec.  This is the same as the
preliminary patch I posted to pgsql-patches yesterday, plus some really
grotty code in ruleutils.c to reverse-list a query tree with the correct
alias name depending on context.  I'd rather not have done that, but unless
we want to force another initdb for 7.1, there's no other way for now.
This commit is contained in:
Tom Lane
2001-02-14 21:35:07 +00:00
parent d42d31e78e
commit 4a66f9dd54
16 changed files with 853 additions and 501 deletions
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5
src/backend/commands/command.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/commands/Attic/command.c,v 1.120 2001/01/29 00:39:20 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/commands/Attic/command.c,v 1.121 2001/02/14 21:35:00 tgl Exp $
*
* NOTES
* The PerformAddAttribute() code, like most of the relation
@ -1136,10 +1136,9 @@ AlterTableAddConstraint(char *relationName,
* the expression we can pass to ExecQual
*/
pstate = make_parsestate(NULL);
makeRangeTable(pstate, NULL);
rte = addRangeTableEntry(pstate, relationName, NULL,
false, true);
addRTEtoJoinList(pstate, rte);
addRTEtoQuery(pstate, rte, true, true);
/* Convert the A_EXPR in raw_expr into an EXPR */
expr = transformExpr(pstate, constr->raw_expr,