Xiao Li created SPARK-21499:
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Summary: Support creating persistent function for Spark
UDAF(UserDefinedAggregateFunction)
Key: SPARK-21499
URL: https://issues.apache.org/jira/browse/SPARK-21499
Project: Spark
Issue Type: New Feature
Components: SQL
Affects Versions: 2.3.0
Reporter: Xiao Li
Assignee: Xiao Li
Support creating persistent functions for Spark
UDAF(UserDefinedAggregateFunction)
For example,
{noformat}
CREATE FUNCTION myDoubleAvg AS 'test.org.apache.spark.sql.MyDoubleAvg'
{noformat}
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