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From "Apache Spark (Jira)" <>
Subject [jira] [Assigned] (SPARK-32786) Improve performance for some slow DPP tests
Date Thu, 03 Sep 2020 09:59:00 GMT


Apache Spark reassigned SPARK-32786:

    Assignee:     (was: Apache Spark)

> Improve performance for some slow DPP tests
> -------------------------------------------
>                 Key: SPARK-32786
>                 URL:
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 3.1.0
>            Reporter: Zhenhua Wang
>            Priority: Minor
> The whole `DynamicPartitionPruningSuite` takes about 2 min in my laptop (either AE on
or off). The slowest tests areĀ `test("simple inner join triggers DPP with mock-up tables")`
and `test("cleanup any DPP filter that isn't pushed down due to expression id clashes")`,
which totally takes about 1 min.
> We can reuse existing test tables or use smaller tables to reduce the cost. After that,
the two tests takes only about 1 sec in total, leading to 2x speedup for the suite.

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