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Takeshi Yamamuro 6550086bbd [SPARK-20962][SQL] Support subquery column aliases in FROM clause 
## What changes were proposed in this pull request?
This pr added parsing rules to support subquery column aliases in FROM clause.
This pr is a sub-task of #18079.

## How was this patch tested?
Added tests in `PlanParserSuite` and `SQLQueryTestSuite`.

Author: Takeshi Yamamuro <yamamuro@apache.org>

Closes #18185 from maropu/SPARK-20962.
2017-07-29 10:14:47 -07:00
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antlr4/org/apache/spark/sql/catalyst/parser [SPARK-20962][SQL] Support subquery column aliases in FROM clause 2017-07-29 10:14:47 -07:00
java/org/apache/spark/sql [SPARK-21319][SQL] Fix memory leak in sorter 2017-07-27 22:56:26 +08:00
scala/org/apache/spark/sql [SPARK-20962][SQL] Support subquery column aliases in FROM clause 2017-07-29 10:14:47 -07:00