[fix](nereids) fix bug of LogicalRepeat computing uniform datatrait

fe/fe-core/src/main/java/org/apache/doris/nereids/trees/plans/logical/LogicalRepeat.java

@@ -190,7 +190,8 @@ public void computeUnique(DataTrait.Builder builder) {
 
     @Override
     public void computeUniform(DataTrait.Builder builder) {
-        builder.addUniformSlot(child(0).getLogicalProperties().getTrait());
+        // don't generate uniform slot
+        // TODO: this need be supported later
     }
 
     @Override

fe/fe-core/src/test/java/org/apache/doris/nereids/properties/DataTraitTest.java

@@ -242,8 +242,7 @@ void testAgg() {
                 .rewrite()
                 .getPlan();
         System.out.println(plan.getLogicalProperties().getTrait());
-        Assertions.assertTrue(plan.getLogicalProperties()
-                .getTrait().isUniform(plan.getOutput().get(0)));
+        // Assertions.assertTrue(plan.getLogicalProperties().getTrait().isUniform(plan.getOutput().get(0)));
     }
 
     @Test

regression-test/data/nereids_rules_p0/eliminate_gby_key/eliminate_group_by_key_by_uniform.out

@@ -267,3 +267,13 @@ cherry	3
 
 -- !right_anti_right_side --
 
+-- !grouping --
+\N	\N
+\N	1
+\N	2
+\N	3
+1	\N
+1	1
+1	2
+1	3
+

regression-test/suites/nereids_rules_p0/eliminate_gby_key/eliminate_group_by_key_by_uniform.groovy

@@ -218,4 +218,7 @@ suite("eliminate_group_by_key_by_uniform") {
     qt_left_anti_left_side "select t1.b from test1 t1 left anti join (select * from test2 where b=105)  t2 on t1.a=t2.a where t1.b=1 group by t1.b,t1.a order by 1;"
     qt_right_semi_right_side "select t2.b from test1 t1 right semi join (select * from test2 where b=105)  t2 on t1.a=t2.a  group by t2.b,t2.a order by 1;"
     qt_right_anti_right_side "select t2.b from test1 t1 right anti join (select * from test2 where b=105)  t2 on t1.a=t2.a  group by t2.b,t2.a order by 1;"
+
+    //grouping
+    qt_grouping "select k, k3 from (select 1 as k, a k3, sum(b) as sum_k1 from  test1  group by cube(k,a)) t group by k,k3 order by 1,2"
 }