boyjoy1127 opened a new issue, #19937:
URL: https://github.com/apache/shardingsphere/issues/19937

   ## Feature Request
   
   Federation Query should be optimized.
   
   ### Is your feature request related to a problem?
   No
   
   ### Describe the feature you would like.
   -[ ] Add TranslateTable to support projection and filter push down to the 
table rel-node.
   -[ ] Add optimization rules to support projection and filter push down to 
the table rel-node.
   -[ ] Add cache for SQL and query plan.
   -[ ] Optimize rules to support the join well. Collect calcite statistics of 
the schema and table, to support optimization well.
   -[ ] Optimize rules to support the sub-query well. Collect calcite 
statistics of the schema and table, to support optimization well.
   -[ ] Add calcite statistics-related API in the future infra-meta moudle.
   -[ ] Optimize the procedure of the execution to accelerate the query.
   
   


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