Re: like operation in tsearch

2010/3/21 AI Rumman <rummandba(at)gmail(dot)com>:
> Helo,
>
> I am using Postgresql 8.1 and I found that to_tsquery('iftek:*) gives systax
> error.
>

you have to upgrade to 8.4 when you would to use this feature

regards
Pavel Stehule

> On Sun, Mar 21, 2010 at 12:11 PM, Oleg Bartunov <oleg(at)sai(dot)msu(dot)su> wrote:
>>
>> We introduced prefix support in 8.4, so one may use:
>>
>> =# select to_tsvector('Rumman went to iftekhar to solve it') @@
>> to_tsquery('ifte:*') as c;
>>  c ---
>>  t
>> (1 row)
>>
>>
>> On Sun, 21 Mar 2010, AI Rumman wrote:
>>
>>> I am using Postgresql 8.1 tsearch2.
>>>
>>> I need to match a like operation in tsearch. Such as,
>>>
>>> Sample data:
>>>
>>> Document
>>> ......................
>>>
>>> Rumman went to iftekhar to solve it.
>>>
>>>
>>> select ...
>>> from ...
>>> where document like '%ifte%'
>>>
>>> need to be written in tsearch. Here "ifte" is a name
>>>
>>> But in tsearch when I am using to_tsvector, it gives as follows-
>>>
>>> 'iftekhar':4 'rumman':1 'solv':6 'went':2
>>>
>>> postgres=# select to_tsvector('Rumman went to iftekhar to solve it') @@
>>> to_tsquery('ifte') as c;
>>> c
>>> ---
>>> f
>>> (1 row)
>>>
>>> I am confused how to execute the above like operation in tsearch.
>>>
>>> Any help please.
>>>
>>
>>        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
>
>