fix

Author: xiedeyantu

datafusion/sqllogictest/test_files/union.slt

@@ -276,7 +276,7 @@ physical_plan
 # unions_to_filter is enabled by default
 
 statement ok
-set datafusion.optimizer.enable_unions_to_filter = false;
+set datafusion.optimizer.enable_unions_to_filter = true;
 
 query TT
 EXPLAIN SELECT id, name FROM t1 WHERE id = 1 UNION SELECT id, name FROM t1 WHERE id = 2