Nishant Bangarwa created HIVE-20468:
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Summary: Add ability to skip creating druid bitmap indexes for
specific string dimensions
Key: HIVE-20468
URL: https://issues.apache.org/jira/browse/HIVE-20468
Project: Hive
Issue Type: New Feature
Reporter: Nishant Bangarwa
Assignee: Nishant Bangarwa
Currently we create bitmap index for all druid dimensions.
For some columns (e.g Free form text, high cardinality columns that are rarely
filtered upon), It may be beneficial to skip creating druid bitmap index and
save disk space.
In druid https://github.com/apache/incubator-druid/pull/5402 added support for
creating string dimension columns without bitmap indexes.
This task is to add similar option when indexing data from hive.
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