init

db_include/optimizer/subselect.h

@@ -0,0 +1,40 @@
+/*-------------------------------------------------------------------------
+ *
+ * subselect.h
+ *	  Planning routines for subselects.
+ *
+ * Portions Copyright (c) 1996-2021, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1994, Regents of the University of California
+ *
+ * src/include/optimizer/subselect.h
+ *
+ *-------------------------------------------------------------------------
+ */
+#ifndef SUBSELECT_H
+#define SUBSELECT_H
+
+#include "nodes/pathnodes.h"
+#include "nodes/plannodes.h"
+
+extern void SS_process_ctes(PlannerInfo *root);
+extern JoinExpr *convert_ANY_sublink_to_join(PlannerInfo *root,
+											 SubLink *sublink,
+											 Relids available_rels);
+extern JoinExpr *convert_EXISTS_sublink_to_join(PlannerInfo *root,
+												SubLink *sublink,
+												bool under_not,
+												Relids available_rels);
+extern Node *SS_replace_correlation_vars(PlannerInfo *root, Node *expr);
+extern Node *SS_process_sublinks(PlannerInfo *root, Node *expr, bool isQual);
+extern void SS_identify_outer_params(PlannerInfo *root);
+extern void SS_charge_for_initplans(PlannerInfo *root, RelOptInfo *final_rel);
+extern void SS_attach_initplans(PlannerInfo *root, Plan *plan);
+extern void SS_finalize_plan(PlannerInfo *root, Plan *plan);
+extern Param *SS_make_initplan_output_param(PlannerInfo *root,
+											Oid resulttype, int32 resulttypmod,
+											Oid resultcollation);
+extern void SS_make_initplan_from_plan(PlannerInfo *root,
+									   PlannerInfo *subroot, Plan *plan,
+									   Param *prm);
+
+#endif							/* SUBSELECT_H */