arrow/datatype_null.go (10 lines of code) (raw):

// Licensed to the Apache Software Foundation (ASF) under one // or more contributor license agreements. See the NOTICE file // distributed with this work for additional information // regarding copyright ownership. The ASF licenses this file // to you under the Apache License, Version 2.0 (the // "License"); you may not use this file except in compliance // with the License. You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. package arrow // NullType describes a degenerate array, with zero physical storage. type NullType struct{} func (*NullType) ID() Type { return NULL } func (*NullType) Name() string { return "null" } func (*NullType) String() string { return "null" } func (*NullType) Fingerprint() string { return typeIDFingerprint(NULL) } var ( Null *NullType _ DataType = Null )