keaton drebes created CALCITE-4745:
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Summary: RelDataTypeSystemImpl.deriveAvgAggType typing error
Key: CALCITE-4745
URL: https://issues.apache.org/jira/browse/CALCITE-4745
Project: Calcite
Issue Type: Bug
Components: core
Affects Versions: 1.27.0
Reporter: keaton drebes
Fix For: 1.27.0
Currently, RelDataTypeSystemImpl.deriveAvgAggType returns the type of the input
argument.
This is obviously incorrect, AVG(A) where A has values [0, 1] should return .5,
which is not an integer. This issue effects all SqlAggFunction's, since they
ultimately use deriveAvgAggType for type inference.
PR here:
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