b41sh commented on code in PR #10445:
URL: https://github.com/apache/datafusion/pull/10445#discussion_r1597413786
##########
datafusion/expr/src/logical_plan/builder.rs:
##########
@@ -188,37 +181,61 @@ impl LogicalPlanBuilder {
n_cols
);
}
- field_types = row
- .iter()
- .enumerate()
- .map(|(j, expr)| {
- if let Expr::Literal(ScalarValue::Null) = expr {
- nulls.push((i, j));
- Ok(field_types[j].clone())
- } else {
- let data_type = expr.get_type(&empty_schema)?;
- if let Some(prev_data_type) = &field_types[j] {
- if prev_data_type != &data_type {
- return plan_err!("Inconsistent data type
across values list at row {i} column {j}. Was {prev_data_type} but found
{data_type}")
+ }
+
+ let empty_schema = DFSchema::empty();
Review Comment:
Hi @alamb, long time no see, thanks for the review. Do you mean to move the
code for extracting the common types of values to `type_coercion.rs`? One
problem is that `optimizer` crate depends on `expr` crate and we can't call the
`optimizer` crate function in `LogicalPlanBuilder`. Maybe I'm not understanding
you correctly, please give more advice to help me understand.
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