Github user tdas commented on a diff in the pull request:
https://github.com/apache/spark/pull/21560#discussion_r196580603
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/UnsupportedOperationChecker.scala
---
@@ -350,7 +350,14 @@ object UnsupportedOperationChecker {
_: TypedFilter) =>
case node if node.nodeName == "StreamingRelationV2" =>
case node =>
- throwError(s"Continuous processing does not support
${node.nodeName} operations.")
+ val aboveSinglePartitionCoalesce = node.find {
--- End diff --
Will this allow `kafkaStreamDF.coalesc(1).select(...).filter(...).agg(...)`?
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