Re: Problem creating GIN index on multiple weighted columns

Ryan Fugger <arv@ryanfugger.com> writes:
> I'm using 8.4.8, attempting to run the following command:
> => create index profile_search_index on profile_profile using
> gin(setweight(to_tsvector('english', name), 'A') ||
> setweight(to_tsvector('english', description), 'B'));

> I get this error:

> ERROR:  syntax error at or near "||"
> LINE 1: ... gin(setweight(to_tsvector('english', name), 'A') || setweig...
>                                                              ^

> Is this a bug, or a known limitation, or is my syntax just wrong?

The latter.  You need an extra pair of parentheses around any index
expression that's more complicated than a single function call.

            regards, tom lane