join state TTL

[lec ssmi]

Hi:
  When the stream is joined with another stream , the cached stream data
will be saved as a state and deleted as the watermark advances.
  I found that there is also a parameter that can set the state expiration
time, such as StateTtlConfig in DataStream API， TableConfig in TableAPI &SQL
 .This setting is effective for the state of group by operator. And now the
state TTL seems to be based on processing time.If the configured TTL  has
been reached and the watermark has not moved to the edge. The state of join
will be cleared ? What is the relationship between StateTtlConfig  and
TableConfig? If I use  StateTtlConfig  and program with TableAPI, can the
configuration take effect?

  Best regards
  Lec Ssmi