-- =============================================================================
-- migrate_warehouse_address_sort_remark.sql
-- 仓库地址：展示排序（选填）+ 备注（选填）
-- =============================================================================
SET @db := DATABASE();

SET @col := (
  SELECT COUNT(1)
  FROM information_schema.COLUMNS
  WHERE TABLE_SCHEMA = @db
    AND TABLE_NAME = 't_warehouse_address'
    AND COLUMN_NAME = 'Sort'
);
SET @sql := IF(
  @col = 0,
  'ALTER TABLE `t_warehouse_address`
    ADD COLUMN `Sort` INT NULL DEFAULT NULL COMMENT ''展示排序，越小越靠前'' AFTER `ShippingAddress`',
  'SELECT ''Sort already exists'' AS info'
);
PREPARE stmt FROM @sql;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;

SET @col := (
  SELECT COUNT(1)
  FROM information_schema.COLUMNS
  WHERE TABLE_SCHEMA = @db
    AND TABLE_NAME = 't_warehouse_address'
    AND COLUMN_NAME = 'Remark'
);
SET @sql := IF(
  @col = 0,
  'ALTER TABLE `t_warehouse_address`
    ADD COLUMN `Remark` VARCHAR(512) NULL DEFAULT NULL COMMENT ''备注'' AFTER `Sort`',
  'SELECT ''Remark already exists'' AS info'
);
PREPARE stmt FROM @sql;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;