[I] Floats in TPC-DS data [datafusion-benchmarks]

["Dandandan (via GitHub)" <gi...@apache.org>]

Dandandan opened a new issue, #32:
URL: https://github.com/apache/datafusion-benchmarks/issues/32

   Integer columns have `double` type in TPC-DS.
   
   This leads to some planning weirdness in DataFusion, as it can not estimate cardinality based on float datatypes.
   
   We should keep the original types.


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