Re: Checking is TSearch2 query is valid

That is helpful but these functions to do help me detect errors in
queries such as "(moose & frog" where the left parentheses is
missing. I may just have to write a lexical analyzer.

Benjamin

On Sep 8, 2007, at 10:45 PM, Oleg Bartunov wrote:

> There are two useful functions - numnode() and querytree()
> More details in http://www.sai.msu.su/~megera/postgres/fts/doc/fts-
> query.html
>
> Oleg
> On Sat, 8 Sep 2007, Benjamin Arai wrote:
>
>> Is there a way to pass a query to PostgreSQL to check if the
>> TSeasrch2 search text is valid? For example,
>>
>> SELECT to_tsquery('default', '!');
>>
>> returns an error. I want to know if there is a way get true/
>> false for the '!' portion of the query?
>>
>> Benjamin
>>
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> Regards,
> Oleg
> _____________________________________________________________
> Oleg Bartunov, Research Scientist, Head of AstroNet (www.astronet.ru)
> Sternberg Astronomical Institute, Moscow University, Russia
> Internet: oleg(at)sai(dot)msu(dot)su, http://www.sai.msu.su/~megera/
> phone: +007(495)939-16-83, +007(495)939-23-83
>