[
https://issues.apache.org/jira/browse/DRILL-5797?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16475765#comment-16475765
]
Arina Ielchiieva commented on DRILL-5797:
-----------------------------------------
[~okalinin] looked at the complex12.q as well. Got the same conclusions as you
are. My understanding is that we need to rewrite
{{ParquetSchema.fieldSelected}} method to choose correct column rather then
two. Did you try that?
> Use more often the new parquet reader
> -------------------------------------
>
> Key: DRILL-5797
> URL: https://issues.apache.org/jira/browse/DRILL-5797
> Project: Apache Drill
> Issue Type: Improvement
> Components: Storage - Parquet
> Reporter: Damien Profeta
> Assignee: Oleksandr Kalinin
> Priority: Major
> Fix For: 1.14.0
>
>
> The choice of using the regular parquet reader of the optimized one is based
> of what type of columns is in the file. But the columns that are read by the
> query doesn't matter. We can increase a little bit the cases where the
> optimized reader is used by checking is the projected column are simple or
> not.
> This is an optimization waiting for the fast parquet reader to handle complex
> structure.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
