1 files changed, 65 insertions, 0 deletions
diff --git a/src/backend/optimizer/plancat.h b/src/backend/optimizer/plancat.h
new file mode 100644
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+++ b/src/backend/optimizer/plancat.h
@@ -0,0 +1,65 @@
+/*-------------------------------------------------------------------------
+ *
+ * plancat.h--
+ *    prototypes for plancat.c.
+ *
+ *
+ * Copyright (c) 1994, Regents of the University of California
+ *
+ * $Id: plancat.h,v 1.1.1.1 1996/07/09 06:21:34 scrappy Exp $
+ *
+ *-------------------------------------------------------------------------
+ */
+#ifndef PLANCAT_H
+#define PLANCAT_H
+
+#include "c.h"
+
+/*
+ * transient data structure to hold return value of index_info. Note that
+ * indexkeys, orderOprs and classlist is "null-terminated".
+ */
+typedef struct IdxInfoRetval {
+    Oid		relid;		/* OID of the index relation (not the OID
+				 * of the relation being indexed)
+				 */
+    Oid         relam;          /* OID of the pg_am of this index */
+    int		pages;		/* number of pages in the index relation */
+    int		tuples;		/* number of tuples in the index relation */
+    int 	*indexkeys;	/* keys over which we're indexing */
+    Oid		*orderOprs;	/* operators used for ordering purposes */
+    Oid 	*classlist;	/* classes of AM operators */
+    Oid		indproc;
+    Node 	*indpred;
+} IdxInfoRetval;
+
+
+extern void relation_info(Query *root,
+			  Oid relid, 
+			  bool *hashindex, int *pages,
+			  int *tuples);
+
+extern bool index_info(Query *root, 
+		       bool first, int relid, IdxInfoRetval *info);
+
+extern Cost
+restriction_selectivity(Oid functionObjectId,
+			Oid operatorObjectId,
+			Oid relationObjectId,
+			AttrNumber attributeNumber,
+			char *constValue,
+			int32 constFlag);
+
+extern void
+index_selectivity(Oid indid, Oid *classes, List *opnos,
+		  Oid relid, List *attnos, List *values, List *flags,
+		  int32 nkeys, float *idxPages, float *idxSelec);
+
+extern Cost join_selectivity(Oid functionObjectId, Oid operatorObjectId,
+	Oid relationObjectId1, AttrNumber attributeNumber1,
+	Oid relationObjectId2, AttrNumber attributeNumber2);
+
+extern List *find_inheritance_children(Oid inhparent);
+extern List *VersionGetParents(Oid verrelid);
+
+#endif /* PLANCAT_H */