diff options
Diffstat (limited to 'src/include')
| -rw-r--r-- | src/include/nodes/pathnodes.h | 10 | ||||
| -rw-r--r-- | src/include/optimizer/paths.h | 2 |
2 files changed, 12 insertions, 0 deletions
diff --git a/src/include/nodes/pathnodes.h b/src/include/nodes/pathnodes.h index b9713ec9aa6..137da178dc7 100644 --- a/src/include/nodes/pathnodes.h +++ b/src/include/nodes/pathnodes.h @@ -1457,6 +1457,16 @@ typedef struct PathKey } PathKey; /* + * Combines the information about pathkeys and the associated clauses. + */ +typedef struct PathKeyInfo +{ + NodeTag type; + List *pathkeys; + List *clauses; +} PathKeyInfo; + +/* * VolatileFunctionStatus -- allows nodes to cache their * contain_volatile_functions properties. VOLATILITY_UNKNOWN means not yet * determined. diff --git a/src/include/optimizer/paths.h b/src/include/optimizer/paths.h index efd4abc28f3..0e8a9c94ba6 100644 --- a/src/include/optimizer/paths.h +++ b/src/include/optimizer/paths.h @@ -24,6 +24,7 @@ extern PGDLLIMPORT bool enable_geqo; extern PGDLLIMPORT int geqo_threshold; extern PGDLLIMPORT int min_parallel_table_scan_size; extern PGDLLIMPORT int min_parallel_index_scan_size; +extern PGDLLIMPORT bool enable_group_by_reordering; /* Hook for plugins to get control in set_rel_pathlist() */ typedef void (*set_rel_pathlist_hook_type) (PlannerInfo *root, @@ -204,6 +205,7 @@ typedef enum extern PathKeysComparison compare_pathkeys(List *keys1, List *keys2); extern bool pathkeys_contained_in(List *keys1, List *keys2); extern bool pathkeys_count_contained_in(List *keys1, List *keys2, int *n_common); +extern List *get_useful_group_keys_orderings(PlannerInfo *root, Path *path); extern Path *get_cheapest_path_for_pathkeys(List *paths, List *pathkeys, Relids required_outer, CostSelector cost_criterion, |