bharath v created IMPALA-8771:
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Summary: 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
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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