HyukjinKwon commented on a change in pull request #31905:
URL: https://github.com/apache/spark/pull/31905#discussion_r672308649
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File path: sql/core/src/main/scala/org/apache/spark/sql/Dataset.scala
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@@ -1947,6 +1947,31 @@ class Dataset[T] private[sql](
CollectMetrics(name, (expr +: exprs).map(_.named), logicalPlan)
}
+ /**
+ * Observe (named) metrics through an [[org.apache.spark.sql.Observation]]
instance.
Review comment:
oh btw some errors from unidoc are fake. I think the real errors are:
```
[error]
/home/runner/work/spark/spark/sql/core/target/java/org/apache/spark/sql/Dataset.java:1800:1:
error: unexpected text
[error] * This is equivalent to calling {@link Dataset.observe(String,
Column, Column*)} but does
[error] ^
[error]
/home/runner/work/spark/spark/sql/core/target/java/org/apache/spark/sql/Dataset.java:1804:1:
error: reference not found
[error] * A user can retrieve the metrics by accessing {@link
org.apache.spark.sql.Observation.get}.
[error] ^
[error]
/home/runner/work/spark/spark/sql/core/target/java/org/apache/spark/sql/Observation.java:51:1:
error: exception not thrown: java.lang.InterruptedException
[error] * @throws java.lang.InterruptedException interrupted while waiting
[error] ^
```
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