Postgres / Flyway：如何在sql文件中包装长常量字符串？

Question

我想在我的flyway迁移文件中对SQL进行换行，工作版本如下：

comment on table account is
'Multiple users may be associated with the same account (think multiple login methods, like gmail + facebook, etc.) ';

如果我使用IDEA并在字符串中按Enter键，则会生成：

comment on table account is
'Multiple users may be associated with the same account (think multiple' ||
' login methods, like gmail + facebook, etc.) ';

但是，然后运行迁移操作会产生错误PSQLException: ERROR: syntax error at or near "||"。

版本：Flyway 4.2，Postgres 10

Answer 1

在SQL中跨行分割字符串是完全没问题的（没有任何连接运算符）：

comment on table account is
'Multiple users may be associated with the 
same account (think multiple login methods, 
like gmail + facebook, etc.)';

Answer 2

仅包装源代码的替代答案，而不是字符串的内容：

comment on table account is
'Multiple users may be associated with the same account (think multiple'
' login methods, like gmail + facebook, etc.)';