-- 报销发放备注：单笔发放和批量发放共用，已处理详情读取该字段。
-- MySQL 5.7。可重复执行。
SET NAMES utf8mb4;

SET @schema_name = DATABASE();
SET @pay_remark_exists = (
  SELECT COUNT(*) FROM information_schema.COLUMNS
  WHERE TABLE_SCHEMA = @schema_name
    AND TABLE_NAME = 'bx_reimburse_apply'
    AND COLUMN_NAME = 'pay_remark'
);
SET @pay_remark_sql = IF(
  @pay_remark_exists = 0,
  'ALTER TABLE bx_reimburse_apply ADD COLUMN pay_remark varchar(512) DEFAULT NULL COMMENT ''发放备注'' AFTER pay_user_name',
  'SELECT 1'
);
PREPARE pay_remark_stmt FROM @pay_remark_sql;
EXECUTE pay_remark_stmt;
DEALLOCATE PREPARE pay_remark_stmt;