morsapaes commented on pull request #335:
URL: https://github.com/apache/flink-web/pull/335#issuecomment-624275706


   Seth makes a good point.
   
   One thing I also spotted that may confuse users is the definition of the 
temporal table. As far as I understand, ``JDBCTableSource`` implicitly 
implements ``LookupableTableFunction`` — it's not straightforward to understand 
that this is what enables users to use the ``category_dim`` MySQL table as a 
temporal table out-of-the-box in the data enrichment part. Some clarification 
when the dimension table is created would be very helpful.


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