1/*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements.  See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License.  You may obtain a copy of the License at
8 *
9 *    http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18package org.apache.spark.sql
19
20/**
21 * Contains a type system for attributes produced by relations, including complex types like
22 * structs, arrays and maps.
23 */
24package object types {
25  /**
26   * Metadata key used to store the raw hive type string in the metadata of StructField. This
27   * is relevant for datatypes that do not have a direct Spark SQL counterpart, such as CHAR and
28   * VARCHAR. We need to preserve the original type in order to invoke the correct object
29   * inspector in Hive.
30   */
31  val HIVE_TYPE_STRING = "HIVE_TYPE_STRING"
32}
33