Minor bug fixes found during testing

hoodie-cli/src/main/java/com/uber/hoodie/cli/Table.java

@@ -144,7 +144,8 @@ public class Table implements Iterable<List<String>> {
         if (fieldNameToConverterMap.containsKey(fieldName)) {
           return fieldNameToConverterMap.get(fieldName).apply(row.get(idx));
         }
-        return row.get(idx).toString();
+        Object v = row.get(idx);
+        return v == null ? "null" : v.toString();
       }).collect(Collectors.toList());
     }).collect(Collectors.toList());
   }

hoodie-client/src/main/java/com/uber/hoodie/io/HoodieCreateHandle.java

@@ -75,7 +75,7 @@ public class HoodieCreateHandle<T extends HoodieRecordPayload> extends HoodieIOH
       throw new HoodieInsertException(
           "Failed to initialize HoodieStorageWriter for path " + getStorageWriterPath(), e);
     }
-    logger.info("New InsertHandle for partition :" + partitionPath);
+    logger.info("New InsertHandle for partition :" + partitionPath + " with fileId " + fileId);
   }
 
   public HoodieCreateHandle(HoodieWriteConfig config, String commitTime, HoodieTable<T> hoodieTable,

hoodie-common/src/main/avro/HoodieCommitMetadata.avsc

@@ -59,7 +59,8 @@
                      },
                      {
                         "name":"totalUpdatedRecordsCompacted",
-                        "type":["null","long"]
+                        "type":["null","long"],
+                        "default" : null
                      }
                   ]
                }
@@ -74,4 +75,4 @@
          }]
       }
    ]
-}
+}