从* to_tsvector中选择* - 连接表

Question

我想设置to_tsvector语言（例如：'French'），以便在渲染FTS矢量时使用正确的字典。

表格消息有一个locale_id列，该列在locales表中。然后，我需要将locales表加入locale_id的languages表中以获取实际的语言名称。但我发现了一个模糊的;错误：

select * from to_tsvector(t3.language, t1.message) 
inner join message as t1 
inner join locales as t2 on (t1.locale_id = t2.id) 
inner join languages as t3 on (t2.language_id = t3.id); 

ERROR: syntax error at or near ";" LINE 1: ....id)

inner join languages as t3 on (t2.language_id = t3.id);

Answer 1

新代码：

select to_tsvector(t3.language, t1.message) 
from message as t1 
inner join locales as t2 on (t1.locale_id = t2.id) 
inner join languages as t3 on (t2.language_id = t3.id); 

原修复：

select * from to_tsvector(t3.language, t1.message) 
inner join message as t1 on 1 = 1 /* an ON join criteria is mandatory here even if you are doing an implicit cross join */ 
inner join locales as t2 on (t1.locale_id = t2.id) 
inner join languages as t3 on (t2.language_id = t3.id);