git.postgresql.org Git - postgresql.git/commitdiff

Wed, 4 Dec 2002 20:00:37 +0000 (20:00 +0000)

recursing to handle a join alias var, the context had better be set to
be appropriate to the join var's query level. Per report from Hristo Neshev.

index d159ceba371773eda7086376eec9ad7c9207af94..c679c61e12ae2b25134849986e9f4796e259944c 100644 (file)

* IDENTIFICATION

- * $Header: /cvsroot/pgsql/src/backend/catalog/dependency.c,v 1.13 2002年11月30日 21:25:04 tgl Exp $

+ * $Header: /cvsroot/pgsql/src/backend/catalog/dependency.c,v 1.14 2002年12月04日 20:00:37 tgl Exp $

*-------------------------------------------------------------------------

@@ -789,6 +789,11 @@ find_expr_references_walker(Node *node,

else if (rte->rtekind == RTE_JOIN)

{

/* Scan join output column to add references to join inputs */

+ List *save_rtables;

+ /* We must make the context appropriate for join's level */

+ save_rtables = context->rtables;

+ context->rtables = rtables;

if (var->varattno <= 0 ||

var->varattno > length(rte->joinaliasvars))

elog(ERROR, "find_expr_references_walker: bogus varattno %d",

@@ -796,6 +801,7 @@ find_expr_references_walker(Node *node,

find_expr_references_walker((Node *) nth(var->varattno - 1,

rte->joinaliasvars),

context);

+ context->rtables = save_rtables;

}

return false;

}

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