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/*------------------------------------------------------------------------- * * planner.h * prototypes for planner.c. * * * Portions Copyright (c) 1996-2016, 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/plannodes.h" #include "nodes/relation.h" /* Hook for plugins to get control in planner() */ typedef PlannedStmt *(*planner_hook_type) (Query *parse, 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); extern PGDLLIMPORT create_upper_paths_hook_type create_upper_paths_hook; extern PlannedStmt *planner(Query *parse, int cursorOptions, ParamListInfo boundParams); extern PlannedStmt *standard_planner(Query *parse, int cursorOptions, ParamListInfo boundParams); extern PlannerInfo *subquery_planner(PlannerGlobal *glob, Query *parse, PlannerInfo *parent_root, bool hasRecursion, double tuple_fraction); extern bool is_dummy_plan(Plan *plan); 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 *expression_planner(Expr *expr); extern Expr *preprocess_phv_expression(PlannerInfo *root, Expr *expr); extern bool plan_cluster_use_sort(Oid tableOid, Oid indexOid); #endif /* PLANNER_H */