Dandandan commented on a change in pull request #513:
URL: https://github.com/apache/arrow-datafusion/pull/513#discussion_r646036515
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File path: datafusion/src/optimizer/constant_folding.rs
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@@ -247,6 +248,25 @@ impl<'a> ExprRewriter for ConstantRewriter<'a> {
}
}
}
+ Expr::Cast {
+ expr: inner,
+ data_type,
+ } => match inner.as_ref() {
+ Expr::Literal(val) => {
+ let scalar_array = val.to_array();
Review comment:
Great idea👍 I think converting to an array is the best we can do for
now, without duplicating the code.
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