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https://issues.apache.org/jira/browse/SPARK-14910?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-14910:
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Assignee: Apache Spark
> Native DDL Command Support for Describe Function in Non-identifier Format
> -------------------------------------------------------------------------
>
> Key: SPARK-14910
> URL: https://issues.apache.org/jira/browse/SPARK-14910
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Affects Versions: 2.0.0
> Reporter: Xiao Li
> Assignee: Apache Spark
>
> The existing `Describe Function` only support the function name in
> `identifier`. This is different from what Hive behaves. That is why many test
> cases `udf_abc` in `HiveCompatibilitySuite` do not pass. For example,
> - udf_not.q
> - udf_bitwise_not.q
> We need to support the command of `Describe Function` whose function names
> are in the following formats that are not natively supported:
> - `STRING` (e.g., `'func1'`)
> - `comparisonOperator` (e.g,. `<`)
> - `arithmeticOperator` (e.g., `+`)
> - `predicateOperator` (e.g., `or`)
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