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Diffstat (limited to 'src/include/optimizer/planner.h')
-rw-r--r-- | src/include/optimizer/planner.h | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/src/include/optimizer/planner.h b/src/include/optimizer/planner.h new file mode 100644 index 0000000..9a15de5 --- /dev/null +++ b/src/include/optimizer/planner.h @@ -0,0 +1,61 @@ +/*------------------------------------------------------------------------- + * + * planner.h + * prototypes for planner.c. + * + * Note that the primary entry points for planner.c are declared in + * optimizer/optimizer.h, because they're intended to be called from + * non-planner code. Declarations here are meant for use by other + * planner modules. + * + * Portions Copyright (c) 1996-2021, PostgreSQL Global Development Group + * Portions Copyright (c) 1994, Regents of the University of California + * + * src/include/optimizer/planner.h + * + *------------------------------------------------------------------------- + */ +#ifndef PLANNER_H +#define PLANNER_H + +#include "nodes/pathnodes.h" +#include "nodes/plannodes.h" + + +/* Hook for plugins to get control in planner() */ +typedef PlannedStmt *(*planner_hook_type) (Query *parse, + const char *query_string, + int cursorOptions, + ParamListInfo boundParams); +extern PGDLLIMPORT planner_hook_type planner_hook; + +/* Hook for plugins to get control when grouping_planner() plans upper rels */ +typedef void (*create_upper_paths_hook_type) (PlannerInfo *root, + UpperRelationKind stage, + RelOptInfo *input_rel, + RelOptInfo *output_rel, + void *extra); +extern PGDLLIMPORT create_upper_paths_hook_type create_upper_paths_hook; + + +extern PlannedStmt *standard_planner(Query *parse, const char *query_string, + int cursorOptions, + ParamListInfo boundParams); + +extern PlannerInfo *subquery_planner(PlannerGlobal *glob, Query *parse, + PlannerInfo *parent_root, + bool hasRecursion, double tuple_fraction); + +extern RowMarkType select_rowmark_type(RangeTblEntry *rte, + LockClauseStrength strength); + +extern bool limit_needed(Query *parse); + +extern void mark_partial_aggref(Aggref *agg, AggSplit aggsplit); + +extern Path *get_cheapest_fractional_path(RelOptInfo *rel, + double tuple_fraction); + +extern Expr *preprocess_phv_expression(PlannerInfo *root, Expr *expr); + +#endif /* PLANNER_H */ |