diff options
Diffstat (limited to 'src/include/nodes/relation.h')
| -rw-r--r-- | src/include/nodes/relation.h | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/src/include/nodes/relation.h b/src/include/nodes/relation.h index d54770eabc4..8738a9924d5 100644 --- a/src/include/nodes/relation.h +++ b/src/include/nodes/relation.h @@ -7,7 +7,7 @@ * Portions Copyright (c) 1996-2009, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $PostgreSQL: pgsql/src/include/nodes/relation.h,v 1.179 2009/11/15 02:45:35 tgl Exp $ + * $PostgreSQL: pgsql/src/include/nodes/relation.h,v 1.180 2009/11/28 00:46:19 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -142,6 +142,16 @@ typedef struct PlannerInfo List *join_rel_list; /* list of join-relation RelOptInfos */ struct HTAB *join_rel_hash; /* optional hashtable for join relations */ + /* + * When doing a dynamic-programming-style join search, join_rel_level[k] + * is a list of all join-relation RelOptInfos of level k, and + * join_cur_level is the current level. New join-relation RelOptInfos + * are automatically added to the join_rel_level[join_cur_level] list. + * join_rel_level is NULL if not in use. + */ + List **join_rel_level; /* lists of join-relation RelOptInfos */ + int join_cur_level; /* index of list being extended */ + List *resultRelations; /* integer list of RT indexes, or NIL */ List *init_plans; /* init SubPlans for query */ |