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