alamb commented on issue #5492:
URL: https://github.com/apache/datafusion/issues/5492#issuecomment-2888986494

   I recommend we also do some research on existing systems. Can someone 
provide links to existing implementations in other systems?
   * DuckDB
   * Spark
   * Apache Calcite ( Maybe @suibianwanwank can help, as they have significant 
experience with this part of calcite's optimizer in this area -- 
https://github.com/apache/calcite/issues?q=is%3Apr+is%3Aopen+author%3Asuibianwanwank)


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