andygrove commented on code in PR #3238:
URL: https://github.com/apache/arrow-datafusion/pull/3238#discussion_r953729764
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datafusion/physical-expr/src/expressions/column.rs:
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@@ -74,21 +74,84 @@ impl PhysicalExpr for Column {
/// Get the data type of this expression, given the schema of the input
fn data_type(&self, input_schema: &Schema) -> Result<DataType> {
+ self.bounds_check(input_schema)?;
Review Comment:
No. We can only do the bounds check when the input schema is available,
during evaluation.
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