updateSchema method

@override SchemaBuilder updateSchema(String tableName)

Update table schema, supports chain operations tableName Table name

Example:

final taskId = await db.updateSchema('users')
  .addField('age', DataType.integer)
  .removeField('old_field')
  .renameField('name', 'full_name')
  .modifyField('email', (field) => field.unique());

更新表结构，支持链式操作 tableName 表名

Implementation

@override
SchemaBuilder updateSchema(String tableName) {
  _checkSystemTableAccess(tableName, 'its schema cannot be modified manually',
      'ToStore.updateSchema');
  return SchemaBuilder(_impl, tableName);
}