Jacek Laskowski created SPARK-21427:
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Summary: Describe mapGroupsWithState and flatMapGroupsWithState
for stateful aggregation in Structured Streaming
Key: SPARK-21427
URL: https://issues.apache.org/jira/browse/SPARK-21427
Project: Spark
Issue Type: Improvement
Components: Documentation, Structured Streaming
Affects Versions: 2.2.1
Reporter: Jacek Laskowski
# Rename "Arbitrary Stateful Operations" to "Stateful Aggregations" (see
https://people.apache.org/~pwendell/spark-nightly/spark-master-docs/latest/structured-streaming-programming-guide.html#arbitrary-stateful-operations
for the latest version)
# Describe two operators {{mapGroupsWithState}} and {{flatMapGroupsWithState}}
with examples.
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