tzulitai opened a new pull request #16: [FLINK-15945] Remove 
MULTIPLEX_FLINK_STATE config
URL: https://github.com/apache/flink-statefun/pull/16
 
 
   Prior to this PR, Stateful Functions allow enabling or disabling multiplex 
state, regardless of the state backend being used. This actually does not make 
sense, considering that:
   * If the heap backend is used, there is no reason to multiplex state. Also 
taking into account that there are problems that exist for multiplexing state 
such as lack of support for state schema evolution.
   * If RocksDB backend is used, it is highly encouraged to multiplex state, 
anyways.
   
   Therefore, this PR removes the `MULTIPLEX_FLINK_STATE` configuration and 
simply piggybacks the behaviour of multiplexing state to the state backend 
being used, i.e. multiplex only when RocksDB state backend is used.

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