ding-young commented on code in PR #15589:
URL: https://github.com/apache/datafusion/pull/15589#discussion_r2032229805
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datafusion/optimizer/src/simplify_expressions/expr_simplifier.rs:
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@@ -2152,6 +2169,17 @@ mod tests {
}
}
+ #[test]
+ fn test_simplify_eq_not_self() {
+ let expr_a = col("c2").eq(col("c2"));
+ let expr_b = col("c2_non_null").eq(col("c2_non_null"));
+ let expected_a = col("c2").is_not_null().or(lit_bool_null());
+ let expected_b = lit(true);
Review Comment:
I updated the comments. Thank you :)
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