[fix](multi-catalog)unsupported hive input format should throw an exc…

…eption and remove useless method. (#29228)

from: #29087

fe/fe-core/src/main/java/org/apache/doris/catalog/external/HMSExternalTable.java

@@ -207,12 +207,22 @@ public boolean isHoodieCowTable() {
      * Support managed_table and external_table.
      */
     private boolean supportedHiveTable() {
+        // we will return false if null, which means that the table type maybe unsupported.
+        if (remoteTable.getSd() == null) {
+            return false;
+        }
         String inputFileFormat = remoteTable.getSd().getInputFormat();
         if (inputFileFormat == null) {
             return false;
         }
+        boolean supportedFileFormat = SUPPORTED_HIVE_FILE_FORMATS.contains(inputFileFormat);
+        if (!supportedFileFormat) {
+            // for easier debugging, need return error message if unsupported input format is used.
+            // NotSupportedException is required by some operation.
+            throw new NotSupportedException("Unsupported hive input format: " + inputFileFormat);
+        }
         LOG.debug("hms table {} is {} with file format: {}", name, remoteTable.getTableType(), inputFileFormat);
-        return SUPPORTED_HIVE_FILE_FORMATS.contains(inputFileFormat);
+        return true;
     }
 
     /**