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Posted to issues@impala.apache.org by "Fredy Wijaya (JIRA)" <ji...@apache.org> on 2018/02/14 02:27:00 UTC

[jira] [Resolved] (IMPALA-6392) Explain format for parquet predicate statistics should be consistent with predicates

     [ https://issues.apache.org/jira/browse/IMPALA-6392?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Fredy Wijaya resolved IMPALA-6392.
----------------------------------
    Resolution: Fixed

> Explain format for parquet predicate statistics should be consistent with predicates
> ------------------------------------------------------------------------------------
>
>                 Key: IMPALA-6392
>                 URL: https://issues.apache.org/jira/browse/IMPALA-6392
>             Project: IMPALA
>          Issue Type: Bug
>          Components: Frontend
>    Affects Versions: Impala 2.11.0
>            Reporter: Vuk Ercegovac
>            Assignee: Fredy Wijaya
>            Priority: Minor
>              Labels: ramp-up
>
> In EXPLAIN_LEVEL 2, "parquet predicate statistics" combine conjuncts from multiple tuple descriptors into one line:
>     parquet statistics predicates: c_custkey > 0, o.o_orderkey > 0, l.l_partkey > 0
> However, "predicates" separate the conjuncts into a line per tuple descriptor:
>     predicates: c_custkey > 0, !empty(c.c_orders)
>     predicates on o: !empty(o.o_lineitems), o.o_orderkey > 0
>     predicates on l: l.l_partkey > 0
> These two cases should be consistent. Prefer the line per tuple descriptor style.



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