Github user jaceklaskowski commented on a diff in the pull request: https://github.com/apache/spark/pull/22238#discussion_r213264786 --- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala --- @@ -266,7 +266,9 @@ object SQLConf { .createWithDefault(Long.MaxValue) val SHUFFLE_PARTITIONS = buildConf("spark.sql.shuffle.partitions") - .doc("The default number of partitions to use when shuffling data for joins or aggregations.") + .doc("The default number of partitions to use when shuffling data for joins or aggregations. " + + "Note: For structured streaming, this configuration cannot be changed between query " + --- End diff -- s/cannot be/must not be/
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