salim achouche created DRILL-5846:
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Summary: Improve Parquet Reader Performance for Flat Data types
Key: DRILL-5846
URL: https://issues.apache.org/jira/browse/DRILL-5846
Project: Apache Drill
Issue Type: Improvement
Components: Storage - Parquet
Affects Versions: 1.11.0
Reporter: salim achouche
Fix For: 1.12.0
The Parquet Reader is a key use-case for Drill. This JIRA is an attempt to
further improve the Parquet Reader performance as several users reported that
Parquet parsing represents the lion share of the overall query execution. It
tracks Flat Data types only as Nested DTs might involve functional and
processing enhancements (e.g., a nested column can be seen as a Document; user
might want to perform operations scoped at the document level that is no need
to span all rows). Another JIRA will be created to handle the nested columns
use-case.
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