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From "Apache Spark (Jira)" <j...@apache.org>
Subject [jira] [Commented] (SPARK-33990) v2 ALTER TABLE .. DROP PARTITION does not remove data from dropped partition
Date Mon, 01 Feb 2021 04:35:00 GMT

    [ https://issues.apache.org/jira/browse/SPARK-33990?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17276051#comment-17276051
] 

Apache Spark commented on SPARK-33990:
--------------------------------------

User 'yaooqinn' has created a pull request for this issue:
https://github.com/apache/spark/pull/31407

> v2 ALTER TABLE .. DROP PARTITION does not remove data from dropped partition
> ----------------------------------------------------------------------------
>
>                 Key: SPARK-33990
>                 URL: https://issues.apache.org/jira/browse/SPARK-33990
>             Project: Spark
>          Issue Type: Sub-task
>          Components: SQL
>    Affects Versions: 3.2.0
>            Reporter: Maxim Gekk
>            Assignee: Maxim Gekk
>            Priority: Major
>             Fix For: 3.2.0
>
>
> The testĀ fails:
> {code:scala}
>   test("SPARK-XXXXX: don not return data from dropped partition") {
>     withNamespaceAndTable("ns", "tbl") { t =>
>       sql(s"CREATE TABLE $t (id int, part int) $defaultUsing PARTITIONED BY (part)")
>       sql(s"INSERT INTO $t PARTITION (part=0) SELECT 0")
>       sql(s"INSERT INTO $t PARTITION (part=1) SELECT 1")
>       QueryTest.checkAnswer(sql(s"SELECT * FROM $t"), Seq(Row(0, 0), Row(1, 1)))
>       sql(s"ALTER TABLE $t DROP PARTITION (part=0)")
>       QueryTest.checkAnswer(sql(s"SELECT * FROM $t"), Seq(Row(1, 1)))
>     }
>   }
> {code}
> on the last check with:
> {code}
> == Results ==
> !== Correct Answer - 1 ==   == Spark Answer - 2 ==
> !struct<>                   struct<id:int,part:int>
> ![1,1]                      [0,0]
> !                           [1,1]
> {code}



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