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From lionelcao <>
Subject [GitHub] carbondata pull request #1258: [CARBONDATA-1325] Add partition guidance doc
Date Sat, 26 Aug 2017 03:52:09 GMT
Github user lionelcao commented on a diff in the pull request:
    --- Diff: docs/ ---
    @@ -0,0 +1,124 @@
    +    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
    +    Unless required by applicable law or agreed to in writing,
    +    software distributed under the License is distributed on an
    +    KIND, either express or implied.  See the License for the
    +    specific language governing permissions and limitations
    +    under the License.
    +### CarbonData Partition Table Guidance
    +This guidance illustrates how to create & use partition table in CarbonData.
    +* [Create Partition Table](#create-partition-table)
    +  - [Create Hash Partition Table](#create-hash-partition-table)
    +  - [Create Range Partition Table](#create-range-partition-table)
    +  - [Create List Partition Table](#create-list-partition-table)
    +* [Show Partitions](#show-partitions)
    +* [Maintain the Partitions](#maintain-the-partitions)
    +* [Partition Id](#partition-id)
    +* [Tips](#tips)
    +### Create Partition Table
    +##### Create Hash Partition Table
    +   CREATE TABLE [IF NOT EXISTS] [db_name.]table_name
    +                    [(col_name data_type , ...)]
    +   STORED BY 'carbondata'
    +   PARTITIONED BY (partition_col_name data_type)
    --- End diff --
    I can see there are two functions validateTypeConvert and validateTypeConvertForSpark2
in CommonUtil.scala to validate partition column type. It's added by some other contributor.

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