fix serialize bugs

entry/cli/serialize.go

@@ -200,6 +200,9 @@ func serializeArray(val []any) (buf []byte, err error) {
 								continue
 							}
 						}
+						if !rv.Type().Field(j).IsExported() {
+							continue
+						}
 						indexes = append(indexes, j)
 						row = append(row, columnName)
 					}