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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2002-11-19 23:22:00 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2002-11-19 23:22:00 +0000 |
| commit | b60be3f2f8d094da79e04c6eda888f401b09dc39 (patch) | |
| tree | 0590e0647deb5041b8dabcabf03770ebef8e8d43 /src/include/nodes/parsenodes.h | |
| parent | 54cb1db6cf4d4bf4e44148582bbd2c99684e7dfd (diff) | |
| download | postgresql-b60be3f2f8d094da79e04c6eda888f401b09dc39.tar.gz | |
Add an at-least-marginally-plausible method of estimating the number
of groups produced by GROUP BY. This improves the accuracy of planning
estimates for grouped subselects, and is needed to check whether a
hashed aggregation plan risks memory overflow.
Diffstat (limited to 'src/include/nodes/parsenodes.h')
| -rw-r--r-- | src/include/nodes/parsenodes.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/include/nodes/parsenodes.h b/src/include/nodes/parsenodes.h index cd976cd1a1..92501196f9 100644 --- a/src/include/nodes/parsenodes.h +++ b/src/include/nodes/parsenodes.h @@ -7,7 +7,7 @@ * Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $Id: parsenodes.h,v 1.215 2002/11/15 03:09:39 momjian Exp $ + * $Id: parsenodes.h,v 1.216 2002/11/19 23:21:59 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -102,6 +102,7 @@ typedef struct Query List *equi_key_list; /* list of lists of equijoined * PathKeyItems */ List *query_pathkeys; /* desired pathkeys for query_planner() */ + bool hasJoinRTEs; /* true if any RTEs are RTE_JOIN kind */ } Query; |