Github user tdas commented on a diff in the pull request:
https://github.com/apache/spark/pull/16758#discussion_r99255889
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/streaming/IncrementalExecution.scala
---
@@ -68,7 +71,7 @@ class IncrementalExecution(
* Records the current id for a given stateful operator in the query
plan as the `state`
* preparation walks the query plan.
*/
- private var operatorId = 0
+ private val operatorId = new AtomicInteger(0)
--- End diff --
not really. just a tiny bit cleaner to do `getAndIncrement` than using x
and then calling `x += 1`
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