[Enhancement](multi-catalog) merge hms partition events.

fe/fe-core/src/test/java/org/apache/doris/external/hms/MetastoreEventFactoryTest.java

@@ -436,11 +436,11 @@ public void testCreateBatchEvents() {
  EventProducer initProducer = new EventProducer(initProportions);
  EventProducer producer = new EventProducer(proportions);
 
- for (int i = 0; i < 100; i++) {
+ for (int i = 0; i < 200; i++) {
  // create a test catalog and do initialization
  MockCatalog testCatalog = new MockCatalog(testCtl);
  List<MetastoreEvent> initEvents = Lists.newArrayListWithCapacity(1000);
- for (int j = 0; j < 10000; j++) {
+ for (int j = 0; j < 1000; j++) {
  initEvents.add(initProducer.produceOneEvent(j));
  }
  for (MetastoreEvent event : initEvents) {
@@ -451,7 +451,7 @@ public void testCreateBatchEvents() {
  MockCatalog validateCatalog = testCatalog.copy();
 
  List<MetastoreEvent> events = Lists.newArrayListWithCapacity(1000);
- for (int j = 0; j < 10000; j++) {
+ for (int j = 0; j < 1000; j++) {
  events.add(producer.produceOneEvent(j));
  }
  List<MetastoreEvent> mergedEvents = factory.createBatchEvents(testCtl, events);