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Fix EXPLAIN so that it can drill down through multiple levels of subplan

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when trying to locate the referent of a RECORD variable.  This fixes the
'record type has not been registered' failure reported by Stefan
Kaltenbrunner about a month ago.  A side effect of the way I chose to
fix it is that most variable references in join conditions will now be
properly labeled with the variable's source table name, instead of the
not-too-helpful 'outer' or 'inner' we used to use.
This commit is contained in:
Tom Lane
2006-04-08 18:49:52 +00:00
parent 74bdf965a6
commit c6e81aeef3
3 changed files with 113 additions and 127 deletions
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6
src/include/utils/builtins.h
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@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2006, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/utils/builtins.h,v 1.278 2006/04/05 22:11:57 tgl Exp $
* $PostgreSQL: pgsql/src/include/utils/builtins.h,v 1.279 2006/04/08 18:49:52 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -526,9 +526,7 @@ extern List *deparse_context_for(const char *aliasname, Oid relid);
extern List *deparse_context_for_plan(int outer_varno, Node *outercontext,
int inner_varno, Node *innercontext,
List *rtable);
extern Node *deparse_context_for_rte(RangeTblEntry *rte);
extern Node *deparse_context_for_subplan(const char *name, List *tlist,
List *rtable);
extern Node *deparse_context_for_subplan(const char *name, Node *subplan);
extern const char *quote_identifier(const char *ident);
extern char *quote_qualified_identifier(const char *namespace,
const char *ident);