spark-instrumented-optimizer/sql/catalyst
Daoyuan Wang 2cbb3e433a [SPARK-5642] [SQL] Apply column pruning on unused aggregation fields
select k from (select key k, max(value) v from src group by k) t

Author: Daoyuan Wang <daoyuan.wang@intel.com>
Author: Michael Armbrust <michael@databricks.com>

Closes #4415 from adrian-wang/groupprune and squashes the following commits:

5d2d8a3 [Daoyuan Wang] address Michael's comments
61f8ef7 [Daoyuan Wang] add a unit test
80ddcc6 [Daoyuan Wang] keep project
b69d385 [Daoyuan Wang] add a prune rule for grouping set
2015-02-13 13:48:39 -08:00
..
src [SPARK-5642] [SQL] Apply column pruning on unused aggregation fields 2015-02-13 13:48:39 -08:00
pom.xml SPARK-4159 [CORE] Maven build doesn't run JUnit test suites 2015-01-06 12:02:08 -08:00