diff options
Diffstat (limited to 'src/include/nodes/plannodes.h')
| -rw-r--r-- | src/include/nodes/plannodes.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/include/nodes/plannodes.h b/src/include/nodes/plannodes.h index 111f87c24d3..66db9cf3640 100644 --- a/src/include/nodes/plannodes.h +++ b/src/include/nodes/plannodes.h @@ -7,7 +7,7 @@ * Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $Id: plannodes.h,v 1.53 2001/11/05 17:46:34 momjian Exp $ + * $Id: plannodes.h,v 1.54 2002/03/12 00:52:01 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -254,6 +254,7 @@ typedef struct SubqueryScan * jointype: rule for joining tuples from left and right subtrees * joinqual: qual conditions that came from JOIN/ON or JOIN/USING * (plan.qual contains conditions that came from WHERE) + * joinrti: rtable index of corresponding JOIN RTE, if any (0 if none) * * When jointype is INNER, joinqual and plan.qual are semantically * interchangeable. For OUTER jointypes, the two are *not* interchangeable; @@ -262,6 +263,8 @@ typedef struct SubqueryScan * (But plan.qual is still applied before actually returning a tuple.) * For an outer join, only joinquals are allowed to be used as the merge * or hash condition of a merge or hash join. + * + * joinrti is for the convenience of setrefs.c; it's not used in execution. * ---------------- */ typedef struct Join @@ -269,6 +272,7 @@ typedef struct Join Plan plan; JoinType jointype; List *joinqual; /* JOIN quals (in addition to plan.qual) */ + Index joinrti; /* JOIN RTE, if any */ } Join; /* ---------------- |