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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