Description
Kudu VARCHAR support is added in IMPALA-5092.
Currently Impala does not pushdown predicates to Kudu unless the value is already a VARCHAR or explicitly casted. This should be enabled to make VARCHAR predicates more intuitive and performant.
This should push down:
select straight_join count(*) from ctas_varchar where vc > '1';
However, right now this is required to push down the filter:
select straight_join count(*) from ctas_varchar where vc > cast('1' as varchar(1));
Attachments
Issue Links
- relates to
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IMPALA-5092 Support for VARCHAR for Kudu tables
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- Resolved
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