[jira] [Resolved] (IMPALA-8771) Missing stats warning for complex type columns

["Tamas Mate (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/IMPALA-8771?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tamas Mate resolved IMPALA-8771.
--------------------------------
    Resolution: Fixed

> Missing stats warning for complex type columns
> ----------------------------------------------
>
>                 Key: IMPALA-8771
>                 URL: https://issues.apache.org/jira/browse/IMPALA-8771
>             Project: IMPALA
>          Issue Type: Improvement
>          Components: Frontend
>    Affects Versions: Impala 2.13.0, Impala 3.3.0
>            Reporter: bharath v
>            Assignee: Tamas Mate
>            Priority: Minor
>              Labels: observability
>             Fix For: Impala 3.3.0
>
>
> We currently don't support column stats for complex typed columns (ingored in `compute stats` statements). However running queries against those columns throws the missing col stats warning which is confusing. 
>  
> {noformat}
> select count(*) from
> customers c,
> c.orders o;{noformat}
> {noformat}
> Max Per-Host Resource Reservation: Memory=16.00KB Threads=3
> Per-Host Resource Estimates: Memory=36MB
> WARNING: The following tables are missing relevant table and/or column statistics.
> default.customers
> Analyzed query: SELECT count(*) FROM `default`.customers c, c.orders o{noformat}
>  
> We could probably skip the warnings if we detect the missing stats are for complex typed columns, until we support them. 



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