Matt McCline created HIVE-8513:
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Summary: Vectorize multiple children operators
Key: HIVE-8513
URL: https://issues.apache.org/jira/browse/HIVE-8513
Project: Hive
Issue Type: Bug
Components: Vectorization
Reporter: Matt McCline
Assignee: Matt McCline
For HIVE-8498 we turned off vectorization if any operator is encountered with
multiple children.
Thus, this query will not be vectorized:
from orc1 a
insert overwrite table orc_rn1 select a.* where a.rn < 100
insert overwrite table orc_rn2 select a.* where a.rn >= 100 and a.rn < 1000
insert overwrite table orc_rn3 select a.* where a.rn >= 1000;
But Prashanth [~prasanthj] also points that correlation operators Mux/Demux
will also not be vectorized, too.
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