如何使用Rails在Postgres中转义保留字列？

Question

我在shift_breaks表下有一个名为“ length”的整数列。通过ruby访问该列可以正常工作，但是当尝试使用.where查询该列时，不会返回期望的结果。.

我尝试了各种绕过它的方法，但是找不到不涉及重命名列的解决方案。任何帮助将不胜感激。

# Application details

Rails: 5.1.6.2
Ruby: 2.5.3
PostgreSQL: 9.6.10

Answer 1

length在ruby和psql中不是保留字。检查此链接以了解psql-reserved words in postgresql中的保留字。请用error发布您的where query。

Answer 2

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长度为20的换档符实际上在数据库中是什么样子。