timvw opened a new issue, #4166:
URL: https://github.com/apache/arrow-datafusion/issues/4166
**Describe the bug**
Column name (casing) is not handled correctly.
**To Reproduce**
Have a (parquet) file with a column "featureValue". A simple "select * from
alltypes_plain" returns
+------------+
| featureValue |
+------------+
| 0.0000 |
When running "select * from alltypes_plain where featureValue <> 0" gives an
error:
Error: SchemaError(FieldNotFound { field: Column { relation: None, name:
"featurevalue" }, valid_fields: Some(Column { relation: Some("alltypes_plain"),
name: "featureValue" }]) })
**Expected behavior**
The column is correctly discovered as "featureValue" and not "featurevalue"
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