1 files changed, 85 insertions, 0 deletions
diff --git a/src/backend/catalog/pg_namespace.c b/src/backend/catalog/pg_namespace.c
new file mode 100644
index 00000000000..c340cd02f73
--- /dev/null
+++ b/src/backend/catalog/pg_namespace.c
@@ -0,0 +1,85 @@
+/*-------------------------------------------------------------------------
+ *
+ * pg_namespace.c
+ *	  routines to support manipulation of the pg_namespace relation
+ *
+ * Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1994, Regents of the University of California
+ *
+ *
+ * IDENTIFICATION
+ *	  $Header: /cvsroot/pgsql/src/backend/catalog/pg_namespace.c,v 1.1 2002/03/22 21:34:44 tgl Exp $
+ *
+ *-------------------------------------------------------------------------
+ */
+#include "postgres.h"
+
+#include "access/heapam.h"
+#include "catalog/catname.h"
+#include "catalog/indexing.h"
+#include "catalog/pg_namespace.h"
+#include "miscadmin.h"
+#include "utils/builtins.h"
+#include "utils/syscache.h"
+
+
+/* ----------------
+ * NamespaceCreate
+ * ---------------
+ */
+Oid
+NamespaceCreate(const char *nspName)
+{
+	Relation	nspdesc;
+	HeapTuple	tup;
+	Oid			nspoid;
+	char		nulls[Natts_pg_namespace];
+	Datum		values[Natts_pg_namespace];
+	NameData	nname;
+	TupleDesc	tupDesc;
+	int			i;
+
+	/* sanity checks */
+	if (!nspName)
+		elog(ERROR, "no namespace name supplied");
+
+	/* make sure there is no existing namespace of same name */
+	if (SearchSysCacheExists(NAMESPACENAME,
+							 PointerGetDatum(nspName),
+							 0, 0, 0))
+		elog(ERROR, "namespace \"%s\" already exists", nspName);
+
+	/* initialize nulls and values */
+	for (i = 0; i < Natts_pg_namespace; i++)
+	{
+		nulls[i] = ' ';
+		values[i] = (Datum) NULL;
+	}
+	namestrcpy(&nname, nspName);
+	values[Anum_pg_namespace_nspname - 1] = NameGetDatum(&nname);
+	values[Anum_pg_namespace_nspowner - 1] = Int32GetDatum(GetUserId());
+	nulls[Anum_pg_namespace_nspacl - 1] = 'n';
+
+	nspdesc = heap_openr(NamespaceRelationName, RowExclusiveLock);
+	tupDesc = nspdesc->rd_att;
+	if (!HeapTupleIsValid(tup = heap_formtuple(tupDesc,
+											   values,
+											   nulls)))
+		elog(ERROR, "NamespaceCreate: heap_formtuple failed");
+	nspoid = heap_insert(nspdesc, tup);
+	if (!OidIsValid(nspoid))
+		elog(ERROR, "NamespaceCreate: heap_insert failed");
+
+	if (RelationGetForm(nspdesc)->relhasindex)
+	{
+		Relation	idescs[Num_pg_namespace_indices];
+
+		CatalogOpenIndices(Num_pg_namespace_indices, Name_pg_namespace_indices, idescs);
+		CatalogIndexInsert(idescs, Num_pg_namespace_indices, nspdesc, tup);
+		CatalogCloseIndices(Num_pg_namespace_indices, idescs);
+	}
+
+	heap_close(nspdesc, RowExclusiveLock);
+
+	return nspoid;
+}