Timo Walther created FLINK-5514:
-----------------------------------
Summary: Implement an efficient physical execution for
CUBE/ROLLUP/GROUPING SETS
Key: FLINK-5514
URL: https://issues.apache.org/jira/browse/FLINK-5514
Project: Flink
Issue Type: Improvement
Components: Table API & SQL
Reporter: Timo Walther
A first support for GROUPING SETS has been added in FLINK-5303. However, the
current runtime implementation is not very efficient as it basically only
translates logical operators to physical operators i.e. grouping sets are
currently only translated into multiple groupings that are unioned together. A
rough design document for this has been created in FLINK-2980.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
