LiaCastaneda commented on code in PR #16064:
URL: https://github.com/apache/datafusion/pull/16064#discussion_r2095705227
##########
datafusion/core/src/physical_planner.rs:
##########
@@ -2069,29 +2071,37 @@ fn maybe_fix_physical_column_name(
expr: Result<Arc<dyn PhysicalExpr>>,
input_physical_schema: &SchemaRef,
) -> Result<Arc<dyn PhysicalExpr>> {
- if let Ok(e) = &expr {
- if let Some(column) = e.as_any().downcast_ref::<Column>() {
- let physical_field = input_physical_schema.field(column.index());
- let expr_col_name = column.name();
- let physical_name = physical_field.name();
-
- if physical_name != expr_col_name {
- // handle edge cases where the physical_name contains ':'.
- let colon_count = physical_name.matches(':').count();
- let mut splits = expr_col_name.match_indices(':');
- let split_pos = splits.nth(colon_count);
-
- if let Some((idx, _)) = split_pos {
- let base_name = &expr_col_name[..idx];
- if base_name == physical_name {
- let updated_column = Column::new(physical_name,
column.index());
- return Ok(Arc::new(updated_column));
+ expr.and_then(|e| {
+ e.transform_down(|node| {
Review Comment:
Sometimes `Columns` can be inside other type of expressions (so they are not
on the "top level") , for example:
```
BinaryExpr {
left: IsNotNull(
Column(
Column {
relation: Some(
Bare {
table: "left",
},
),
name: "people_column",
},
),
),
op: Or,
right: IsNotNull(
Column(
Column {
relation: Some(
Bare {
table: "left",
},
),
name: "people_column:1",
},
),
),
},
```
if so [the current
fix](https://github.com/apache/datafusion/blob/3e30f77f08aa9184029da80c7f7e2ec00999fa44/datafusion/core/src/physical_planner.rs#L2068)
won't apply, this change handles those cases by using `transform_down`
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