jorgecarleitao commented on a change in pull request #7796:
URL: https://github.com/apache/arrow/pull/7796#discussion_r456757621
##########
File path: rust/datafusion/src/execution/context.rs
##########
@@ -995,16 +1034,16 @@ mod tests {
let ctx = create_ctx(&tmp_dir, 1)?;
let schema = Arc::new(Schema::new(vec![
- Field::new("state", DataType::Utf8, false),
- Field::new("salary", DataType::UInt32, false),
+ Field::new("c1", DataType::Utf8, false),
+ Field::new("c2", DataType::UInt32, false),
]));
let plan = LogicalPlanBuilder::scan("default", "test",
schema.as_ref(), None)?
.aggregate(
- vec![col("state")],
Review comment:
This change was necessary because the file's schema is `c1`, `c2`, not
`state, salary`. We were able to get away with this because, since the names
did not mean anything, we could read a file with a given schema using another
schema's field names, as long as the indexing was correct. I believe that this
should not be possible by design, as it introduces situations that are
non-trivial to debug.
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