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Posted to issues@drill.apache.org by "Arina Ielchiieva (JIRA)" <ji...@apache.org> on 2018/09/17 13:32:00 UTC

[jira] [Created] (DRILL-6744) Support filter push down for varchar / decimal data types

Arina Ielchiieva created DRILL-6744:
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             Summary: Support filter push down for varchar / decimal data types
                 Key: DRILL-6744
                 URL: https://issues.apache.org/jira/browse/DRILL-6744
             Project: Apache Drill
          Issue Type: Improvement
    Affects Versions: 1.14.0
            Reporter: Arina Ielchiieva
            Assignee: Arina Ielchiieva
             Fix For: 1.15.0


Since now Drill is using Apache Parquet 1.10.0 where issue with incorrectly stored varchar / decimal min / max statistics is resolved, we should add support for varchar / decimal filter push down. Only files created with parquet lib 1.9.1 and later will be subjected to push down. In cases if user knows that prior created files have correct min / max statistics (i.e. user exactly knows that data in binary columns in ASCII (not UTF-8)) than parquet.strings.signed-min-max.enabled can be set to true to enable filter push down.



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