allenpradeep commented on a change in pull request #11532:
URL: https://github.com/apache/beam/pull/11532#discussion_r418711729
##########
File path:
sdks/java/io/google-cloud-platform/src/main/java/org/apache/beam/sdk/io/gcp/spanner/SpannerIO.java
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@@ -1066,7 +1079,12 @@ public SpannerWriteResult
expand(PCollection<MutationGroup> input) {
spec.getBatchSizeBytes(),
spec.getMaxNumMutations(),
spec.getMaxNumRows(),
- spec.getGroupingFactor(),
+ // Do not group on streaming unless explicitly
set.
+ spec.getGroupingFactor()
+ .orElse(
+ input.isBounded() == IsBounded.BOUNDED
Review comment:
I was wondering if this condition needs to be based on the input passed
to this stage or based on some parameter from the user?
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