Takuya UESHIN 727cb25bcc [SPARK-3036][SPARK-3037][SQL] Add MapType/ArrayType containing null value support to Parquet. ... JIRA: - https://issues.apache.org/jira/browse/SPARK-3036 - https://issues.apache.org/jira/browse/SPARK-3037 Currently this uses the following Parquet schema for `MapType` when `valueContainsNull` is `true`: ``` message root { optional group a (MAP) { repeated group map (MAP_KEY_VALUE) { required int32 key; optional int32 value; } } } ``` for `ArrayType` when `containsNull` is `true`: ``` message root { optional group a (LIST) { repeated group bag { optional int32 array; } } } ``` We have to think about compatibilities with older version of Spark or Hive or others I mentioned in the JIRA issues. Notice: This PR is based on #1963 and #1889. Please check them first. /cc marmbrus, yhuai Author: Takuya UESHIN <ueshin@happy-camper.st> Closes #2032 from ueshin/issues/SPARK-3036_3037 and squashes the following commits: 4e8e9e7 [Takuya UESHIN] Add ArrayType containing null value support to Parquet. 013c2ca [Takuya UESHIN] Add MapType containing null value support to Parquet. 62989de [Takuya UESHIN] Merge branch 'issues/SPARK-2969' into issues/SPARK-3036_3037 8e38b53 [Takuya UESHIN] Merge branch 'issues/SPARK-3063' into issues/SPARK-3036_3037		2014-08-26 18:28:41 -07:00
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src	[SPARK-3036][SPARK-3037][SQL] Add MapType/ArrayType containing null value support to Parquet.	2014-08-26 18:28:41 -07:00
pom.xml	SPARK-2749 [BUILD]. Spark SQL Java tests aren't compiling in Jenkins' Maven builds; missing junit:junit dep	2014-07-30 15:04:33 -07:00