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Change set_plan_references and join_references to take an rtable List

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rather than a Query node; this allows set_plan_references to recurse
into subplans correctly.  Fixes core dump on full outer joins in
subplans.  Also, invoke preprocess_expression on function RTEs'
function expressions.  This seems to fix the planner's problems with
outer-level Vars in function RTEs.
This commit is contained in:
Tom Lane
2002-05-18 02:25:50 +00:00
parent 0a757154bd
commit 51fd22abdd
7 changed files with 78 additions and 57 deletions
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10
src/backend/optimizer/util/var.c
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@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/optimizer/util/var.c,v 1.36 2002/04/28 19:54:28 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/optimizer/util/var.c,v 1.37 2002/05/18 02:25:50 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -41,7 +41,7 @@ typedef struct
typedef struct
{
Query *root;
List *rtable;
bool force;
} flatten_join_alias_vars_context;
@@ -328,11 +328,11 @@ pull_var_clause_walker(Node *node, pull_var_clause_context *context)
* of sublinks to subplans!
*/
Node *
flatten_join_alias_vars(Node *node, Query *root, bool force)
flatten_join_alias_vars(Node *node, List *rtable, bool force)
{
flatten_join_alias_vars_context context;
context.root = root;
context.rtable = rtable;
context.force = force;
return flatten_join_alias_vars_mutator(node, &context);
@@ -352,7 +352,7 @@ flatten_join_alias_vars_mutator(Node *node,
if (var->varlevelsup != 0)
return node; /* no need to copy, really */
rte = rt_fetch(var->varno, context->root->rtable);
rte = rt_fetch(var->varno, context->rtable);
if (rte->rtekind != RTE_JOIN)
return node;
Assert(var->varattno > 0);