support for emit on change

[ppilev]

hello @LGouellec

I found the java version provides support for records being emitted only on change as described here:
https://cwiki.apache.org/confluence/display/KAFKA/KIP-557%3A+Add+emit+on+change+support+for+Kafka+Streams

I'm wondering if this is already supported by Streamiz?

thanks,

[ppilev]

please ignore this question as it seems this feature was reverted due to this issue
https://issues.apache.org/jira/browse/KAFKA-12508