diff options
Diffstat (limited to 'src/include/nodes/relation.h')
| -rw-r--r-- | src/include/nodes/relation.h | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/src/include/nodes/relation.h b/src/include/nodes/relation.h index 071addbc1bb..480fd9630be 100644 --- a/src/include/nodes/relation.h +++ b/src/include/nodes/relation.h @@ -1,13 +1,13 @@ /*------------------------------------------------------------------------- * * relation.h - * Definitions for internal planner nodes. + * Definitions for planner's internal data structures. * * * Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $Id: relation.h,v 1.67 2002/09/04 20:31:44 momjian Exp $ + * $Id: relation.h,v 1.68 2002/11/06 00:00:44 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -403,6 +403,19 @@ typedef struct AppendPath } AppendPath; /* + * ResultPath represents use of a Result plan node, either to compute a + * variable-free targetlist or to gate execution of a subplan with a + * one-time (variable-free) qual condition. Note that in the former case + * path.parent will be NULL; in the latter case it is copied from the subpath. + */ +typedef struct ResultPath +{ + Path path; + Path *subpath; + List *constantqual; +} ResultPath; + +/* * All join-type paths share these fields. */ |