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Posted to issues@flink.apache.org by GitBox <gi...@apache.org> on 2018/09/19 08:50:06 UTC

[GitHub] StefanRRichter commented on a change in pull request #6707: [FLINK-10157] [State TTL] Allow `null` user values in map state with TTL

StefanRRichter commented on a change in pull request #6707: [FLINK-10157] [State TTL] Allow `null` user values in map state with TTL
URL: https://github.com/apache/flink/pull/6707#discussion_r218707603
 
 

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 File path: docs/dev/stream/state/state.md
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 @@ -350,6 +350,9 @@ will lead to compatibility failure and `StateMigrationException`.
 
 - The TTL configuration is not part of check- or savepoints but rather a way of how Flink treats it in the currently running job.
 
+- The map state with TTL currently supports null user values only if the user value serializer can handle null values. 
 
 Review comment:
   Could highlight plaintext null as `null` (multiple instances).

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