本文介绍了Postgres不在数组中的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我正在使用Postgres的本机数组类型,并尝试查找ID不在数组收件人ID中的记录。
I'm using Postgres' native array type, and trying to find the records where the ID is not in the array recipient IDs.
我可以找到它们的位置:
I can find where they are IN:
SELECT COUNT(*) FROM messages WHERE (3 = ANY (recipient_ids))但这不起作用:
SELECT COUNT(*) FROM messages WHERE (3 != ANY (recipient_ids)) SELECT COUNT(*) FROM messages WHERE (3 = NOT ANY (recipient_ids))对此条件进行测试的正确方法是什么?
What's the right way to test for this condition?
推荐答案SELECT COUNT(*) FROM "messages" WHERE NOT (3 = ANY (recipient_ids))
您随时可以取消 WHERE(条件)和 WHERE NOT(条件)
更多推荐
Postgres不在数组中
发布评论