Takuya UESHIN 9d5ecf8205 [SPARK-2327] [SQL] Fix nullabilities of Join/Generate/Aggregate. ... Fix nullabilities of `Join`/`Generate`/`Aggregate` because: - Output attributes of opposite side of `OuterJoin` should be nullable. - Output attributes of generater side of `Generate` should be nullable if `join` is `true` and `outer` is `true`. - `AttributeReference` of `computedAggregates` of `Aggregate` should be the same as `aggregateExpression`'s. Author: Takuya UESHIN <ueshin@happy-camper.st> Closes #1266 from ueshin/issues/SPARK-2327 and squashes the following commits: 3ace83a [Takuya UESHIN] Add withNullability to Attribute and use it to change nullabilities. df1ae53 [Takuya UESHIN] Modify nullabilize to leave attribute if not resolved. 799ce56 [Takuya UESHIN] Add nullabilization to Generate of SparkPlan. a0fc9bc [Takuya UESHIN] Fix scalastyle errors. 0e31e37 [Takuya UESHIN] Fix Aggregate resultAttribute nullabilities. 09532ec [Takuya UESHIN] Fix Generate output nullabilities. f20f196 [Takuya UESHIN] Fix Join output nullabilities.		2014-07-05 11:51:48 -07:00
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src	[SPARK-2327] [SQL] Fix nullabilities of Join/Generate/Aggregate.	2014-07-05 11:51:48 -07:00
pom.xml	[SPARK-2060][SQL] Querying JSON Datasets with SQL and DSL in Spark SQL	2014-06-17 19:14:59 -07:00