diff options
Diffstat (limited to 'src/include/optimizer/paths.h')
| -rw-r--r-- | src/include/optimizer/paths.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/include/optimizer/paths.h b/src/include/optimizer/paths.h index 7ed5b403a87..76285bac408 100644 --- a/src/include/optimizer/paths.h +++ b/src/include/optimizer/paths.h @@ -8,7 +8,7 @@ * Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $Id: paths.h,v 1.63 2002/12/16 21:30:30 tgl Exp $ + * $Id: paths.h,v 1.64 2003/01/24 03:58:43 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -17,6 +17,7 @@ #include "nodes/relation.h" + /* default GEQO threshold (default value for geqo_rels) */ /* If you change this, update backend/utils/misc/postgresql.sample.conf */ #define DEFAULT_GEQO_RELS 11 @@ -92,6 +93,7 @@ typedef enum } PathKeysComparison; extern void add_equijoined_keys(Query *root, RestrictInfo *restrictinfo); +extern bool exprs_known_equal(Query *root, Node *item1, Node *item2); extern void generate_implied_equalities(Query *root); extern List *canonicalize_pathkeys(Query *root, List *pathkeys); extern PathKeysComparison compare_pathkeys(List *keys1, List *keys2); |