從Rails控制台執行時，SQL查詢不起作用

Question

我試圖在我的Rails控制台中運行以下行：

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;"

它只是刪除舊記錄並重寫另一條記錄以進行合並。

Rails控制台返回以下內容：

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，當我在Sequel Pro中運行這個確切的查詢時，查詢運行完全正常。 知道發生了什么事嗎？

Answer 1

可能它連接到AR的mysql適配器默認情況下沒有多個查詢執行的事實？

對此的快速解決方法是將查詢拆分為兩個不同的並一個接一個地執行它們。 並將它們包裝成一個事務，當然:)