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minor: Remove dead code for casting dictionaries #6286

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May 8, 2023
Merged

minor: Remove dead code for casting dictionaries #6286

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10 changes: 0 additions & 10 deletions datafusion/expr/src/type_coercion/binary.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -504,16 +504,6 @@ fn mathematics_numerical_coercion(
return None;
};

// same type => all good
// TODO: remove this
// bug: https://github.com/apache/arrow-datafusion/issues/3387
if lhs_type == rhs_type
&& !(matches!(lhs_type, DataType::Dictionary(_, _))
|| matches!(rhs_type, DataType::Dictionary(_, _)))
{
return Some(lhs_type.clone());
}

// these are ordered from most informative to least informative so
// that the coercion removes the least amount of information
match (lhs_type, rhs_type) {
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