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https://issues.apache.org/jira/browse/IMPALA-9581?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tim Armstrong updated IMPALA-9581:
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Component/s: Backend
> Support Kudu VARCHAR Predicates for STRING values
> -------------------------------------------------
>
> Key: IMPALA-9581
> URL: https://issues.apache.org/jira/browse/IMPALA-9581
> Project: IMPALA
> Issue Type: Improvement
> Components: Backend
> Reporter: Grant Henke
> Priority: Major
> Labels: kudu
>
> 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:
> {code:java}
> select straight_join count(*) from ctas_varchar where vc > '1';
> {code}
> However, right now this is required to push down the filter:
> {code:java}
> select straight_join count(*) from ctas_varchar where vc > cast('1' as
> varchar(1));
> {code}
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