从Rails控制台执行时，SQL查询不起作用

Question

我试图在我的Rails控制台中运行以下行：

ActiveRecord::Base.connection.execute "DELETE FROM recommendations WHERE place_id=4000000001267 AND recommender_id=2728498;UPDATE IGNORE recommendations SET place_id=4000000001267 WHERE place_id=4000000564630 AND recommender_id=2728498;"

它只是删除旧记录并重写另一条记录以进行合并。

Rails控制台返回以下内容：

DELETE FROM recommendations WHERE place_id=4000000001267 AND recommender_id=2728498;UPDATE IGNORE recommendations SET place_id=4000000001267 WHERE place_id=4000000564630 AND recommender_id=2728498; ActiveRecord::StatementInvalid: Mysql2::Error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'UPDATE IGNORE recommendations SET place_id=4000000001267 WHERE place_id=40000005' at line 1: DELETE FROM recommendations WHERE place_id=4000000001267 AND recommender_id=2728498;UPDATE IGNORE recommendations SET place_id=4000000001267 WHERE place_id=4000000564630 AND recommender_id=2728498; from /Users/huynguyen/.rvm/gems/ruby-1.9.3-p0/gems/activerecord-3.2.6/lib/active_record/connection_adapters/abstract_mysql_adapter.rb:243:in DELETE FROM recommendations WHERE place_id=4000000001267 AND recommender_id=2728498;UPDATE IGNORE recommendations SET place_id=4000000001267 WHERE place_id=4000000564630 AND recommender_id=2728498; ActiveRecord::StatementInvalid: Mysql2::Error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'UPDATE IGNORE recommendations SET place_id=4000000001267 WHERE place_id=40000005' at line 1: DELETE FROM recommendations WHERE place_id=4000000001267 AND recommender_id=2728498;UPDATE IGNORE recommendations SET place_id=4000000001267 WHERE place_id=4000000564630 AND recommender_id=2728498; from /Users/huynguyen/.rvm/gems/ruby-1.9.3-p0/gems/activerecord-3.2.6/lib/active_record/connection_adapters/abstract_mysql_adapter.rb:243:in query'`

但是，当我在Sequel Pro中运行这个确切的查询时，查询运行完全正常。 知道发生了什么事吗？

Answer 1

可能它连接到AR的mysql适配器默认情况下没有多个查询执行的事实？

对此的快速解决方法是将查询拆分为两个不同的并一个接一个地执行它们。 并将它们包装成一个事务，当然:)