[debug](auto-partition) debug auto&dynamic partition creation (apache…

…#40245)

## Proposed changes

Issue Number: close #xxx

<!--Describe your changes.-->

fe/fe-core/src/main/java/org/apache/doris/service/FrontendServiceImpl.java

@@ -3350,7 +3350,7 @@ public TCreatePartitionResult createPartition(TCreatePartitionRequest request) t
             return result;
         }
 
-        Table table = db.getTable(tableId).get();
+        OlapTable table = (OlapTable) (db.getTable(tableId).get());
         if (table == null) {
             errorStatus.setErrorMsgs(
                     (Lists.newArrayList(String.format("dbId=%d tableId=%d is not exists", dbId, tableId))));
@@ -3432,6 +3432,16 @@ public TCreatePartitionResult createPartition(TCreatePartitionRequest request) t
         List<TTabletLocation> tablets = Lists.newArrayList();
         for (String partitionName : addPartitionClauseMap.keySet()) {
             Partition partition = table.getPartition(partitionName);
+            if (partition == null) {
+                String partInfos = table.getAllPartitions().stream()
+                        .map(partitionArg -> partitionArg.getName() + partitionArg.getId())
+                        .collect(Collectors.joining(", "));
+
+                errorStatus.setErrorMsgs(Lists.newArrayList("get partition " + partitionName + " failed"));
+                result.setStatus(errorStatus);
+                LOG.warn("send create partition error status: {}, {}", result, partInfos);
+                return result;
+            }
             TOlapTablePartition tPartition = new TOlapTablePartition();
             tPartition.setId(partition.getId());
             int partColNum = partitionInfo.getPartitionColumns().size();