like operation in tsearch
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.
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@sai.msu.su, http://www.sai.msu.su/~megera/
phone: +007(495)939-16-83, +007(495)939-23-83
Helo,
I am using Postgresql 8.1 and I found that to_tsquery('iftek:*) gives systax
error.
On Sun, Mar 21, 2010 at 12:11 PM, Oleg Bartunov <oleg@sai.msu.su> wrote:
Show quoted text
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@sai.msu.su, http://www.sai.msu.su/~megera/
phone: +007(495)939-16-83, +007(495)939-23-83
2010/3/21 AI Rumman <rummandba@gmail.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
Show quoted text
On Sun, Mar 21, 2010 at 12:11 PM, Oleg Bartunov <oleg@sai.msu.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@sai.msu.su, http://www.sai.msu.su/~megera/
phone: +007(495)939-16-83, +007(495)939-23-83