diff options
Diffstat (limited to 'src/include/nodes/relation.h')
| -rw-r--r-- | src/include/nodes/relation.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/src/include/nodes/relation.h b/src/include/nodes/relation.h index 01aa96d7171..15d5647282c 100644 --- a/src/include/nodes/relation.h +++ b/src/include/nodes/relation.h @@ -7,7 +7,7 @@ * Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $PostgreSQL: pgsql/src/include/nodes/relation.h,v 1.119 2005/10/15 02:49:45 momjian Exp $ + * $PostgreSQL: pgsql/src/include/nodes/relation.h,v 1.120 2005/11/14 23:54:23 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -714,6 +714,11 @@ typedef struct HashPath * joined, will also have is_pushed_down set because it will get attached to * some lower joinrel. * + * When application of a qual must be delayed by outer join, we also mark it + * with outerjoin_delayed = true. This isn't redundant with required_relids + * because that might equal clause_relids whether or not it's an outer-join + * clause. + * * In general, the referenced clause might be arbitrarily complex. The * kinds of clauses we can handle as indexscan quals, mergejoin clauses, * or hashjoin clauses are fairly limited --- the code for each kind of @@ -740,6 +745,8 @@ typedef struct RestrictInfo bool is_pushed_down; /* TRUE if clause was pushed down in level */ + bool outerjoin_delayed; /* TRUE if delayed by outer join */ + /* * This flag is set true if the clause looks potentially useful as a merge * or hash join clause, that is if it is a binary opclause with |