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..beb7dbb
--- /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) 1996-2020, 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 */