Re: followed by example doesn't work - Mailing list pgsql-docs

barbiomalefico@gmail.com writes:
> I copied the text in the followed by example: SELECT to_tsvector('fatal
> error') @@ to_tsquery('fatal <-> error');
> but it will always goes in error: ERROR:  syntax error in tsquery: "fatal
> <-> error"
> SQL state: 42601

The described symptoms sound like you're trying to use <-> with a pre-9.6
server.  Since that feature was added in 9.6, it won't work.

We generally don't recommend reading documentation versions that don't
match your server.

            regards, tom lane