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Posted to issues-all@impala.apache.org by "Quanlong Huang (JIRA)" <ji...@apache.org> on 2019/08/17 14:34:00 UTC
[jira] [Updated] (IMPALA-6874) Add more tests for mixed-format
tables, including parquet
[ https://issues.apache.org/jira/browse/IMPALA-6874?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Quanlong Huang updated IMPALA-6874:
-----------------------------------
Target Version: Impala 2.13.0, Impala 3.4.0 (was: Impala 2.13.0, Impala 3.3.0)
> Add more tests for mixed-format tables, including parquet
> ---------------------------------------------------------
>
> Key: IMPALA-6874
> URL: https://issues.apache.org/jira/browse/IMPALA-6874
> Project: IMPALA
> Issue Type: Test
> Components: Infrastructure
> Affects Versions: Impala 2.12.0
> Reporter: Tim Armstrong
> Priority: Major
>
> We only have a single very basic table with mixed formats that I can see. It would be good to have a larger table that includes parquet, so we can exercise some of the more interesting memory reservation code paths. I think the requirements are:
> * Files of at least multiple MBs in size
> * Includes Parquet and at least one row-based format
> * Ideally a mix of different file and partition sizes
> We want queries that exercise "interesting" code paths:
> * Many columns returned: select * from table.
> * Single column returned
> * No columns returned - e.g. select count(*)
> * Selective scan with predicates
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