1 files changed, 57 insertions, 0 deletions
diff --git a/src/include/catalog/pg_inherits.h b/src/include/catalog/pg_inherits.h
new file mode 100644
index 0000000..0432c3a
--- /dev/null
+++ b/src/include/catalog/pg_inherits.h
@@ -0,0 +1,57 @@
+/*-------------------------------------------------------------------------
+ *
+ * pg_inherits.h
+ *	  definition of the "inherits" system catalog (pg_inherits)
+ *
+ *
+ * Portions Copyright (c) 1996-2020, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1994, Regents of the University of California
+ *
+ * src/include/catalog/pg_inherits.h
+ *
+ * NOTES
+ *	  The Catalog.pm module reads this file and derives schema
+ *	  information.
+ *
+ *-------------------------------------------------------------------------
+ */
+#ifndef PG_INHERITS_H
+#define PG_INHERITS_H
+
+#include "catalog/genbki.h"
+#include "catalog/pg_inherits_d.h"
+
+#include "nodes/pg_list.h"
+#include "storage/lock.h"
+
+/* ----------------
+ *		pg_inherits definition.  cpp turns this into
+ *		typedef struct FormData_pg_inherits
+ * ----------------
+ */
+CATALOG(pg_inherits,2611,InheritsRelationId)
+{
+	Oid			inhrelid;
+	Oid			inhparent;
+	int32		inhseqno;
+} FormData_pg_inherits;
+
+/* ----------------
+ *		Form_pg_inherits corresponds to a pointer to a tuple with
+ *		the format of pg_inherits relation.
+ * ----------------
+ */
+typedef FormData_pg_inherits *Form_pg_inherits;
+
+
+extern List *find_inheritance_children(Oid parentrelId, LOCKMODE lockmode);
+extern List *find_all_inheritors(Oid parentrelId, LOCKMODE lockmode,
+								 List **parents);
+extern bool has_subclass(Oid relationId);
+extern bool has_superclass(Oid relationId);
+extern bool typeInheritsFrom(Oid subclassTypeId, Oid superclassTypeId);
+extern void StoreSingleInheritance(Oid relationId, Oid parentOid,
+								   int32 seqNumber);
+extern bool DeleteInheritsTuple(Oid inhrelid, Oid inhparent);
+
+#endif							/* PG_INHERITS_H */