spark-instrumented-optimizer/sql/core
Reynold Xin b4f4e91c39 [SPARK-10100] [SQL] Eliminate hash table lookup if there is no grouping key in aggregation.
This improves performance by ~ 20 - 30% in one of my local test and should fix the performance regression from 1.4 to 1.5 on ss_max.

Author: Reynold Xin <rxin@databricks.com>

Closes #8332 from rxin/SPARK-10100.
2015-08-20 07:53:27 -07:00
..
src [SPARK-10100] [SQL] Eliminate hash table lookup if there is no grouping key in aggregation. 2015-08-20 07:53:27 -07:00
pom.xml [SPARK-9531] [SQL] UnsafeFixedWidthAggregationMap.destructAndCreateExternalSorter 2015-08-02 12:32:14 -07:00