jaystarshot opened a new pull request #2701:
URL: https://github.com/apache/calcite/pull/2701


   PS-    I am new in calcite so wanted your suggestions if any benchmarking, 
testing is required .
   
   This was a bottleneck in In my database, I had observed that for a large 
table involving 1200 columns and a huge select having multiple expressions and 
operators, this part was a bottleneck.
   
   I wrote some jmh tests but i could not load this table as I could not find 
the API to load create tables into catalog for testing
   
   


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