[jira] [Created] (ARROW-18193) [C++] Acero should reject Substrait plans that require an implicit cast from decimal to float

[Weston Pace (Jira)]

Weston Pace created ARROW-18193:
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             Summary: [C++] Acero should reject Substrait plans that require an 
implicit cast from decimal to float
                 Key: ARROW-18193
                 URL: https://issues.apache.org/jira/browse/ARROW-18193
             Project: Apache Arrow
          Issue Type: Bug
          Components: C++
            Reporter: Weston Pace


There are a number of functions that Acero currently implements for decimal 
types by first casting to float implicitly.  Substrait does not allow for this 
kind of implicit cast.  If a plan does not have a decimal-native implementation 
of a function then it should reject the plan.



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