vanzin commented on a change in pull request #26108: [SPARK-26154][SS]
Streaming left/right outer join should not return outer nulls for already
matched rows
URL: https://github.com/apache/spark/pull/26108#discussion_r334704586
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala
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@@ -1069,6 +1069,16 @@ object SQLConf {
.checkValue(v => Set(1, 2).contains(v), "Valid versions are 1 and 2")
.createWithDefault(2)
+ val STREAMING_JOIN_STATE_FORMAT_VERSION =
Review comment:
I'm a little confused about why this needs to be a config. Isn't this just
metadata written to the state store? Why would a user ever need to set this?
I have to go over the rest of the code with more care, since I'm really not
familiar with it. But it looks like an insane amount of code just to add one
single field to some state object...
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