Jesus Camacho Rodriguez created HIVE-22046:
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Summary: Differentiate among column stats computed by different
engines
Key: HIVE-22046
URL: https://issues.apache.org/jira/browse/HIVE-22046
Project: Hive
Issue Type: Improvement
Components: Metastore
Reporter: Jesus Camacho Rodriguez
Assignee: Jesus Camacho Rodriguez
The goal is to avoid computation of column stats by engines to step on each
other, e.g., Hive and Impala. In longer term, we may introduce a common
representation for the column statistics stored by different engines.
For this issue, we will add a new column 'engine' to TAB_COL_STATS HMS table
(unpartitioned tables) and to PART_COL_STATS HMS table (partitioned tables).
This will prevent conflicts at the column level stats.
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