xudong963 commented on code in PR #16049:
URL: https://github.com/apache/datafusion/pull/16049#discussion_r2161450922
##########
datafusion/optimizer/src/push_down_filter.rs:
##########
@@ -4123,4 +4127,34 @@ mod tests {
"
)
}
+
+ /// Create a test table scan with uppercase column names for case
sensitivity testing
+ fn test_table_scan_with_uppercase_columns() -> Result<LogicalPlan> {
+ let schema = Schema::new(vec![
+ Field::new("A", DataType::UInt32, false),
+ Field::new("B", DataType::UInt32, false),
+ Field::new("C", DataType::UInt32, false),
+ ]);
+ table_scan(Some("test"), &schema, None)?.build()
+ }
+
+ #[test]
+ fn filter_agg_case_insensitive() -> Result<()> {
+ let table_scan = test_table_scan_with_uppercase_columns()?;
Review Comment:
If the table also has a column, what'll happen?
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