cloud-fan commented on a change in pull request #32082:
URL: https://github.com/apache/spark/pull/32082#discussion_r621207960
##########
File path:
sql/catalyst/src/main/java/org/apache/spark/sql/connector/catalog/functions/AggregateFunction.java
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@@ -25,12 +25,9 @@
/**
* Interface for a function that produces a result value by aggregating over
multiple input rows.
* <p>
- * For each input row, Spark will call an update method that corresponds to the
- * {@link #inputTypes() input data types}. The expected JVM argument types
must be the types used by
- * Spark's InternalRow API. If no direct method is found or when not using
codegen, Spark will call
- * update with {@link InternalRow}.
- * <p>
- * The JVM type of result values produced by this function must be the type
used by Spark's
+ * For each input row, Spark will call the {@link #update} method which should
evaluate the row
Review comment:
`which should evaluate the row`
This is a bit confusing. How about
```
Spark will call the {@link #update} method to update the aggregation state
with the input row.
```
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