watford-ep commented on code in PR #18342:
URL: https://github.com/apache/datafusion/pull/18342#discussion_r2475069183
##########
datafusion/physical-expr/src/equivalence/properties/mod.rs:
##########
@@ -1470,3 +1470,40 @@ fn get_expr_properties(
expr.get_properties(&child_states)
}
}
+
+#[cfg(test)]
+mod properties_tests {
+ use super::*;
+ use crate::expressions::{binary, case, col, lit};
+ use arrow::compute::SortOptions;
+ use arrow::datatypes::{DataType, Field, Schema};
+ use datafusion_common::Result;
+ use datafusion_expr::Operator;
+ use datafusion_physical_expr_common::sort_expr::PhysicalSortExpr;
+ use std::sync::Arc;
+
+ #[test]
+ fn test_case_expr_ordering_from_raw_oeq_class() -> Result<()> {
+ let schema = Arc::new(Schema::new(vec![
+ Field::new("a", DataType::Int32, true),
+ Field::new("b", DataType::Int32, true),
+ ]));
+
+ // CASE WHEN a = 1 THEN a -> should be ordered
+ let mut eq_properties =
EquivalenceProperties::new(Arc::clone(&schema));
+ let when = binary(col("a", &schema)?, Operator::Eq, lit(1i32),
&schema)?;
+ let then = col("a", &schema)?;
+ let case_expr = case(None, vec![(when, then)], None)?;
+
+ let option = SortOptions::default();
Review Comment:
I have removed this offending code!
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