Xiao Li created SPARK-20349:
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Summary: ListFunction returns duplicate functions after using
persistent functions
Key: SPARK-20349
URL: https://issues.apache.org/jira/browse/SPARK-20349
Project: Spark
Issue Type: Bug
Components: SQL
Affects Versions: 2.1.0, 2.0.2
Reporter: Xiao Li
Assignee: Xiao Li
The session catalog caches some persistent functions in the FunctionRegistry,
so there can be duplicates. Our Catalog API listFunctions does not handle it.
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