fix

Author: xiedeyantu

datafusion/sqllogictest/test_files/union.slt

@@ -300,7 +300,7 @@ physical_plan
 # unions_to_filter is enabled by default
 
 statement ok
-set datafusion.optimizer.enable_unions_to_filter = true;
+set datafusion.optimizer.enable_unions_to_filter = false;
 
 query TT
 EXPLAIN SELECT id, name FROM t1 WHERE id = 1 UNION SELECT id, name FROM t1 WHERE id = 2
@@ -341,8 +341,6 @@ physical_plan
 05)--------FilterExec: id@0 = 1 OR id@0 = 2
 06)----------DataSourceExec: partitions=1, partition_sizes=[1]
 
-statement ok
-set datafusion.optimizer.enable_unions_to_filter = false;
 
 # Make sure to choose a small batch size to introduce parallelism to the plan.
 statement ok