[Fix](Nereids) should not gather data when sink (#20330)

fe/fe-core/src/main/java/org/apache/doris/nereids/glue/translator/PhysicalPlanTranslator.java

@@ -286,7 +286,7 @@ public class PhysicalPlanTranslator extends DefaultPlanVisitor<PlanFragment, Pla
             rootFragment = currentFragment;
         }
 
-        if (isFragmentPartitioned(rootFragment)) {
+        if (!(physicalPlan instanceof PhysicalOlapTableSink) && isFragmentPartitioned(rootFragment)) {
             rootFragment = exchangeToMergeFragment(rootFragment, context);
         }
 

regression-test/suites/nereids_p0/insert_into_table/aggregate.groovy

@@ -21,6 +21,7 @@ suite("nereids_insert_aggregate") {
 
     sql 'set enable_nereids_planner=true'
     sql 'set enable_fallback_to_original_planner=false'
+    sql 'set enable_nereids_dml=true'
     sql 'set parallel_fragment_exec_instance_num=13'
 
     sql '''insert into nereids_insert_into_table_test.agg_t

regression-test/suites/nereids_p0/insert_into_table/complex_insert.groovy

@@ -18,6 +18,7 @@
 suite('complex_insert') {
     sql 'set enable_nereids_planner=true'
     sql 'set enable_fallback_to_original_planner=false'
+    sql 'set enable_nereids_dml=true'
     sql 'set parallel_fragment_exec_instance_num=13'
 
     sql 'use nereids_insert_into_table_test'

regression-test/suites/nereids_p0/insert_into_table/duplicate.groovy

@@ -21,6 +21,7 @@ suite("nereids_insert_duplicate") {
 
     sql 'set enable_nereids_planner=true'
     sql 'set enable_fallback_to_original_planner=false'
+    sql 'set enable_nereids_dml=true'
     sql 'set parallel_fragment_exec_instance_num=13'
 
     sql '''insert into dup_t

regression-test/suites/nereids_p0/insert_into_table/no_partition.groovy

@@ -21,6 +21,7 @@ suite('nereids_insert_no_partition') {
 
     sql 'set enable_nereids_planner=true'
     sql 'set enable_fallback_to_original_planner=false'
+    sql 'set enable_nereids_dml=true'
     sql 'set parallel_fragment_exec_instance_num=13'
 
     sql '''insert into agg_nop_t

regression-test/suites/nereids_p0/insert_into_table/type_cast_aggregate.groovy

@@ -21,6 +21,7 @@ suite("nereids_insert_aggregate_type_cast") {
 
     sql 'set enable_nereids_planner=true'
     sql 'set enable_fallback_to_original_planner=false'
+    sql 'set enable_nereids_dml=true'
     sql 'set parallel_fragment_exec_instance_num=13'
 
     sql '''insert into agg_t_type_cast

regression-test/suites/nereids_p0/insert_into_table/type_cast_duplicate.groovy

@@ -21,6 +21,7 @@ suite("nereids_insert_duplicate") {
 
     sql 'set enable_nereids_planner=true'
     sql 'set enable_fallback_to_original_planner=false'
+    sql 'set enable_nereids_dml=true'
     sql 'set parallel_fragment_exec_instance_num=13'
 
     sql '''insert into dup_t_type_cast

regression-test/suites/nereids_p0/insert_into_table/type_cast_unique.groovy

@@ -21,6 +21,7 @@ suite("nereids_insert_unique_type_cast") {
 
     sql 'set enable_nereids_planner=true'
     sql 'set enable_fallback_to_original_planner=false'
+    sql 'set enable_nereids_dml=true'
     sql 'set parallel_fragment_exec_instance_num=13'
 
     sql '''insert into uni_t_type_cast

regression-test/suites/nereids_p0/insert_into_table/unique.groovy

@@ -21,6 +21,7 @@ suite("nereids_insert_unique") {
 
     sql 'set enable_nereids_planner=true'
     sql 'set enable_fallback_to_original_planner=false'
+    sql 'set enable_nereids_dml=true'
     sql 'set parallel_fragment_exec_instance_num=13'
 
     sql '''insert into uni_t

regression-test/suites/nereids_p0/insert_into_table/unsupport_type.groovy

@@ -20,12 +20,12 @@ suite("nereids_insert_array_type") {
 
     sql 'set enable_nereids_planner=true'
     sql 'set enable_fallback_to_original_planner=false'
+    sql 'set enable_nereids_dml=true'
     sql 'set parallel_fragment_exec_instance_num=13'
 
     test {
         sql 'insert into arr_t select id, kaint from src'
-        // exception 'type ARRAY<INT> is unsupported for Nereids'
-        exception null
+        exception 'type ARRAY<INT> is unsupported for Nereids'
     }
 
     sql 'set enable_fallback_to_original_planner=true'