should be it

external/duckdb/test/planner/projection_binding.test

@@ -0,0 +1,31 @@
+# name: test/planner/projection_binding.test
+# description: Test projection bindings for ORDER BY
+# group: [planner]
+
+statement ok
+CREATE TABLE a (i INTEGER, j INTEGER);
+
+statement ok
+PRAGMA explain_output = PHYSICAL_ONLY;
+
+# verify that ORDER BY binding is consistent in presence of different "table.column" vs "column" bindings
+query I nosort orderbinder
+EXPLAIN SELECT i FROM a ORDER BY i
+----
+
+query I nosort orderbinder
+EXPLAIN SELECT a.i FROM a ORDER BY i
+----
+
+query I nosort orderbinder
+EXPLAIN SELECT i FROM a ORDER BY a.i
+----
+
+# with alias
+query I nosort orderbinderk
+EXPLAIN SELECT i AS k FROM a ORDER BY k
+----
+
+query I nosort orderbinderk
+EXPLAIN SELECT i AS k FROM a ORDER BY i
+----