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https://issues.apache.org/jira/browse/SPARK-18465?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-18465:
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Assignee: (was: Apache Spark)
> Uncache Table shouldn't throw an exception when table doesn't exist
> -------------------------------------------------------------------
>
> Key: SPARK-18465
> URL: https://issues.apache.org/jira/browse/SPARK-18465
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Reporter: Burak Yavuz
>
> While this behavior is debatable, consider the following use case:
> {code}
> UNCACHE TABLE foo;
> CACHE TABLE foo AS
> SELECT * FROM bar
> {code}
> The command above fails the first time you run it. But I want to run the
> command above over and over again, and I don't want to change my code just
> for the first run of it.
> The issue is that subsequent `CACHE TABLE` commands do not overwrite the
> existing table.
> There are alternate solutions, e.g.
> 1.
> {code}
> UNCACHE TABLE IF EXISTS foo
> {code}
> 2.
> {code}
> CACHE AND REPLACE TABLE foo
> {code}
> Which will require additional work with the parser.
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