turboFei commented on a change in pull request #32305:
URL: https://github.com/apache/spark/pull/32305#discussion_r618900886
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File path: docs/sql-ref-functions-udf-aggregate.md
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@@ -21,7 +21,7 @@ license: |
### Description
-User-Defined Aggregate Functions (UDAFs) are user-programmable routines that
act on multiple rows at once and return a single aggregated value as a result.
This documentation lists the classes that are required for creating and
registering UDAFs. It also contains examples that demonstrate how to define and
register UDAFs in Scala and invoke them in Spark SQL.
+User-Defined Aggregate Functions (UDAFs) are user-programmable routines that
act on multiple rows at once and return a single aggregated value as a result.
This documentation lists the classes that are required for creating and
registering UDAFs. It also contains examples that demonstrate how to define and
register UDAFs in Scala/Spark SQL queries and invoke them in Spark SQL.
Review comment:
scala -> program?
Because there is also java example.
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