beliefer opened a new pull request #35145:
URL: https://github.com/apache/spark/pull/35145


   ### What changes were proposed in this pull request?
   https://github.com/apache/spark/pull/35101 translate `COVAR_POP`, 
`COVAR_SAMP` and `CORR`, but the H2 lower version cannot support them.
   
   After https://github.com/apache/spark/pull/35013, we can compile the three 
aggregate functions in `H2Dialet` now.
   
   
   ### Why are the changes needed?
   Supplement the implement of `H2Dialet`.
   
   
   ### Does this PR introduce _any_ user-facing change?
   'Yes'. Spark could complete push-down `COVAR_POP`, `COVAR_SAMP` and `CORR` 
into H2.
   
   
   ### How was this patch tested?
   Test updated.
   


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