Moved from backend/access to include/access

1 files changed, 53 insertions, 0 deletions

diff --git a/src/include/access/tupdesc.h b/src/include/access/tupdesc.h
new file mode 100644
index 0000000000..75945b625d
--- /dev/null
+++ b/src/include/access/tupdesc.h
@@ -0,0 +1,53 @@
+/*-------------------------------------------------------------------------
+ *
+ * tupdesc.h--
+ *    POSTGRES tuple descriptor definitions.
+ *
+ *
+ * Copyright (c) 1994, Regents of the University of California
+ *
+ * $Id: tupdesc.h,v 1.1 1996/08/27 21:50:26 scrappy Exp $
+ *
+ *-------------------------------------------------------------------------
+ */
+#ifndef	TUPDESC_H
+#define TUPDESC_H
+
+#include "postgres.h"
+#include "access/attnum.h"
+#include "nodes/pg_list.h"	/* for List */
+#include "catalog/pg_attribute.h"
+
+/*
+ * a TupleDesc is an array of AttributeTupleForms, each of which is a
+ * pointer to a AttributeTupleForm
+ */
+/* typedef AttributeTupleForm      *TupleDesc; */
+
+/* a TupleDesc is a pointer to a structure which includes an array of */
+/* AttributeTupleForms, i.e. pg_attribute information, and the size of */
+/* the array, i.e. the number of attributes */
+/* in short, a TupleDesc completely captures the attribute information */
+/* for a tuple */
+
+typedef struct tupleDesc {
+    int  natts;
+    AttributeTupleForm *attrs;
+} *TupleDesc;
+
+extern TupleDesc CreateTemplateTupleDesc(int natts);
+
+extern TupleDesc CreateTupleDesc(int natts, AttributeTupleForm *attrs);
+
+extern TupleDesc CreateTupleDescCopy(TupleDesc tupdesc);
+
+extern bool TupleDescInitEntry(TupleDesc desc,
+			       AttrNumber attributeNumber,
+			       char *attributeName, 
+			       char *typeName, 
+			       int attdim, 
+			       bool attisset);
+
+extern TupleDesc BuildDescForRelation(List *schema, char *relname);
+
+#endif	/* TUPDESC_H */