zabetak commented on PR #6092:
URL: https://github.com/apache/hive/pull/6092#issuecomment-3920079828

   @deniskuzZ Many thanks for the review. I believe I addressed all your 
comments so please take another look once you get the chance.
   
   > HiveConf default AST, but we test with CBO, is that intentional?
   
   Regarding the test coverage for `hive.optimize.cte.suggester.type` I kept 
the default to AST to avoid changes in behavior. In addition CBO is an 
experimental feature so not ready yet for being the default.
   
   The AST is the default value and is tested as part of the main plan 
regression suite (TezTPCDS30TBCliConfig) as well as everywhere else where the 
config is not overridden.
   
   The CBO is an experimental feature, and the main reason that we introduced a 
separate CTE suite (TPCDSCteCliConfig).


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