comphead commented on code in PR #16910:
URL: https://github.com/apache/datafusion/pull/16910#discussion_r2233111585
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datafusion/physical-expr/src/equivalence/class.rs:
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@@ -1231,4 +1251,33 @@ mod tests {
Ok(())
}
+
+ #[test]
+ fn test_fields_equal() -> Result<()> {
+ let schema = create_test_schema()?;
+ let col_a = &col("a", &schema)?;
+ let col_c = &col("c", &schema)?;
+ let col_d = &col("d", &schema)?;
+ let col_e = &col("e", &schema)?;
+ // Field indices are 0, 1, 2, 3, 4 respectively
Review Comment:
it is 4 columns `a, c, d, e`, but 5 indices, is it expected?
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