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pg_include/optimizer/restrictinfo.h

@@ -0,0 +1,49 @@
+/*-------------------------------------------------------------------------
+ *
+ * restrictinfo.h
+ *	  prototypes for restrictinfo.c.
+ *
+ *
+ * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1994, Regents of the University of California
+ *
+ * src/include/optimizer/restrictinfo.h
+ *
+ *-------------------------------------------------------------------------
+ */
+#ifndef RESTRICTINFO_H
+#define RESTRICTINFO_H
+
+#include "nodes/relation.h"
+
+
+/* Convenience macro for the common case of a valid-everywhere qual */
+#define make_simple_restrictinfo(clause)  \
+	make_restrictinfo(clause, true, false, false, NULL, NULL, NULL)
+
+extern RestrictInfo *make_restrictinfo(Expr *clause,
+				  bool is_pushed_down,
+				  bool outerjoin_delayed,
+				  bool pseudoconstant,
+				  Relids required_relids,
+				  Relids outer_relids,
+				  Relids nullable_relids);
+extern List *make_restrictinfo_from_bitmapqual(Path *bitmapqual,
+								  bool is_pushed_down,
+								  bool include_predicates);
+extern List *make_restrictinfos_from_actual_clauses(PlannerInfo *root,
+									   List *clause_list);
+extern bool restriction_is_or_clause(RestrictInfo *restrictinfo);
+extern List *get_actual_clauses(List *restrictinfo_list);
+extern List *get_all_actual_clauses(List *restrictinfo_list);
+extern List *extract_actual_clauses(List *restrictinfo_list,
+					   bool pseudoconstant);
+extern void extract_actual_join_clauses(List *restrictinfo_list,
+							List **joinquals,
+							List **otherquals);
+extern bool join_clause_is_movable_to(RestrictInfo *rinfo, Index baserelid);
+extern bool join_clause_is_movable_into(RestrictInfo *rinfo,
+							Relids currentrelids,
+							Relids current_and_outer);
+
+#endif   /* RESTRICTINFO_H */