Qifan Chen created IMPALA-10763:
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Summary: Min/max filters should be enabled on Z-order sorted
columns
Key: IMPALA-10763
URL: https://issues.apache.org/jira/browse/IMPALA-10763
Project: IMPALA
Issue Type: Test
Reporter: Qifan Chen
Currently, min/max filters are enabled for lexically sorted columns (please
refer to
IMPALA-10709: Min/max filters should be enabled for joins on sorted columns in
Parquet tables) with a limitation that only the leading sorted columns are
assigned with min/max filters. Non-leading sorted columns will be ignored.
To effectively handle multiple sort columns, Impala offers an alternative sort
order called Z-order. Z-order sorts these columns in multi-dimension into a
sequence of values such that the locality of the data points are preserved.
The purpose of this JIRA is to integrate the min/max filter feature with a
table with Z-order sorted columns.
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