SchemaTable versionTable

Source

SchemaTable get versionTable {
  return new SchemaTable.empty()
    ..name = versionTableName
    ..columns = [
      (new SchemaColumn.empty()
        ..name = "versionNumber"
        ..type = ManagedPropertyType.integer),
      (new SchemaColumn.empty()
        ..name = "dateOfUpgrade"
        ..type = ManagedPropertyType.datetime),
    ];
}