andygrove commented on code in PR #3407:
URL: https://github.com/apache/arrow-datafusion/pull/3407#discussion_r967193916
##########
datafusion/optimizer/src/type_coercion.rs:
##########
@@ -87,14 +89,51 @@ impl ExprRewriter for TypeCoercionRewriter {
fn mutate(&mut self, expr: Expr) -> Result<Expr> {
match expr {
- Expr::BinaryExpr { left, op, right } => {
+ Expr::BinaryExpr {
+ ref left,
+ op,
+ ref right,
+ } => {
let left_type = left.get_type(&self.schema)?;
let right_type = right.get_type(&self.schema)?;
- let coerced_type = coerce_types(&left_type, &op, &right_type)?;
- Ok(Expr::BinaryExpr {
- left: Box::new(left.cast_to(&coerced_type, &self.schema)?),
- op,
- right: Box::new(right.cast_to(&coerced_type,
&self.schema)?),
+ match (&left_type, &right_type) {
+ (
+ DataType::Date32 | DataType::Date64 |
DataType::Timestamp(_, _),
+ &DataType::Interval(_),
+ ) => {
+ // Arrow `can_cast_types` says we cannot cast an
Interval to
Review Comment:
I am tracking this as part of
https://github.com/apache/arrow-datafusion/issues/3419
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