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https://issues.apache.org/jira/browse/SPARK-15862?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15323828#comment-15323828
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Apache Spark commented on SPARK-15862:
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User 'gatorsmile' has created a pull request for this issue:
https://github.com/apache/spark/pull/13572
> Better Error Message When Having Database Name in CACHE TABLE AS SELECT
> -----------------------------------------------------------------------
>
> Key: SPARK-15862
> URL: https://issues.apache.org/jira/browse/SPARK-15862
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 2.0.0
> Reporter: Xiao Li
> Priority: Minor
>
> The table name in CACHE TABLE AS SELECT should NOT contain database prefix
> like "database.table". Thus, this PR captures this in Parser and outputs a
> better error message, instead of reporting the view already exists.
> In addition, in this JIRA, we have a few issues that need to be addressed: 1)
> refactor the Parser to generate table identifiers instead of returning the
> table name string; 2) add test case for caching and uncaching qualified table
> names; 3) fix a few test cases that do not drop temp table at the end;
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