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https://issues.apache.org/jira/browse/SPARK-16529?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15375531#comment-15375531
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Apache Spark commented on SPARK-16529:
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User 'dongjoon-hyun' has created a pull request for this issue:
https://github.com/apache/spark/pull/14184
> SQLTestUtils.withTempDatabase should set `default` database before dropping
> ---------------------------------------------------------------------------
>
> Key: SPARK-16529
> URL: https://issues.apache.org/jira/browse/SPARK-16529
> Project: Spark
> Issue Type: Test
> Components: Tests
> Reporter: Dongjoon Hyun
> Priority: Trivial
>
> `withTempDatabase` is a frequently used test harness to setup a temporary
> table and clean up finally. This issue improves like the following for
> usability.
> {code}
> - try f(dbName) finally spark.sql(s"DROP DATABASE $dbName CASCADE")
> + try f(dbName) finally {
> + spark.sql(s"USE ${DEFAULT_DATABASE}")
> + spark.sql(s"DROP DATABASE $dbName CASCADE")
> + }
> {code}
> In case of forgetting to reset the databaes, `withTempDatabase` will not
> raise Exception.
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