Files
impala/testdata/workloads/functional-query/queries/QueryTest
Thomas Tauber-Marshall 6a9df54096 IMPALA-3524: Don't process spilled partitions with 0 probe rows
In the partitioned hash join node, if a spilled partition has no probe
rows, building the hash table is unnecessary.

For some build types (right outer, right anti, and full outer), we still
need to process the build side to output unmatched rows (in this case, all
rows since there were no probe rows to match).

Testing: Added some cases to spilling.test. Manually tested these cases
for performance, and they all show around a 6% improvement.

Change-Id: I175b32dd9031e51218b38c37693ac3e31dfab47b
Reviewed-on: http://gerrit.cloudera.org:8080/5389
Reviewed-by: Jim Apple <jbapple-impala@apache.org>
Tested-by: Impala Public Jenkins
2017-02-06 20:22:33 +00:00
..
2016-02-19 00:03:15 -08:00
2016-03-02 23:23:04 -08:00
2014-06-11 03:10:11 -07:00
2014-06-11 03:10:11 -07:00
2014-06-11 03:10:11 -07:00
2014-06-11 03:10:11 -07:00
2014-01-08 10:48:09 -08:00
2014-06-20 13:35:10 -07:00