[
https://issues.apache.org/jira/browse/DRILL-5797?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16234749#comment-16234749
]
ASF GitHub Bot commented on DRILL-5797:
---------------------------------------
Github user paul-rogers commented on the issue:
https://github.com/apache/drill/pull/976
Drill follows SQL rules and is case insensitive. If case sensitivity has
snuck in somewhere (perhaps due to the use of `equals()` rather than
`equalsIgnorCase()` or the use of a case-sensitive map), then we should fix
that.
Note also that column aliases should not be visible to the Parquet reader.
> 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: Damien Profeta
> Priority: Major
> Fix For: 1.12.0
>
>
> 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
(v6.4.14#64029)
