diff --git a/regression-test/suites/query_p0/operator/test_set_operator.groovy b/regression-test/suites/query_p0/operator/test_set_operator.groovy
index ac091a9d8bb9bc..1bc9cc29e4c535 100644
--- a/regression-test/suites/query_p0/operator/test_set_operator.groovy
+++ b/regression-test/suites/query_p0/operator/test_set_operator.groovy
@@ -74,6 +74,7 @@ suite("test_set_operators", "query,p0,arrow_flight_sql") {
     sql """insert into t2 values('6',5,3,4);"""
     sql """insert into t2 values('9',8,0,7);"""
 
+    sql 'sync'
     order_qt_select """
         select
             col1
@@ -88,4 +89,4 @@ suite("test_set_operators", "query,p0,arrow_flight_sql") {
             t3 
             on t2.col1=t3.col1;
     """
-}
\ No newline at end of file
+}