Method evaluate

datafusion/physical-expr/src/expressions/cast.rs:246–249

(&self, batch: &RecordBatch)

    }

    fn evaluate(&self, batch: &RecordBatch) -> Result<ColumnarValue> {
        let value = self.expr.evaluate(batch)?;
        value.cast_to(self.cast_type(), Some(&self.cast_options))
    }

    fn return_field(&self, input_schema: &Schema) -> Result<FieldRef> {
        self.resolved_target_field(input_schema)