[jira] [Updated] (DRILL-7760) REFRESH TABLE METADATA increases the planning time while querying over parquet files.

["Mukul Tewathia (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/DRILL-7760?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mukul Tewathia updated DRILL-7760:
----------------------------------
    Attachment: PROBLEM WITH REFRESH TABLE METADATA.pdf

> REFRESH TABLE METADATA increases the planning time while querying over parquet files.
> -------------------------------------------------------------------------------------
>
>                 Key: DRILL-7760
>                 URL: https://issues.apache.org/jira/browse/DRILL-7760
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: Metadata
>    Affects Versions: 1.17.0
>         Environment: Apache Drill Web UI ( 1.170.0 )
>            Reporter: Mukul Tewathia
>            Priority: Major
>             Fix For: Future
>
>         Attachments: PROBLEM WITH REFRESH TABLE METADATA.pdf
>
>
> After running 
> REFRESH TABLE METADATA <table>
> The planning time increases for a particular query increases from 35 secs to more than 3 minutes.
> Parquet file consist of 10M rows and 7 columns and is partitioned on 2 columns ( both the column contains 8 unique values ).
> What could be the possible explanation for this behaviour ?



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