From: | "James Reynolds" <jamex(at)taraketh(dot)net> |
---|---|
To: | pgsql-general(at)postgresql(dot)org |
Subject: | tsearch2 text::TSVECTOR cast not working for me on Pg 8.1.6 |
Date: | 2008-02-11 20:37:18 |
Message-ID: | 64772.38.96.151.250.1202762238.squirrel@QuestMail.FutureQuest.net:443 |
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Lists: | pgsql-general |
Hi,
I want to convert a TEXT string that I am mangling to TSVECTOR with a cast.
I am using Postgresql 8.1.6 and tsearch2.
According to the documentation this should work although I am getting an
ERROR.
tsearch2 reference on www.sai.msu.su says that
text::TSVECTOR RETURNS TSVECTOR
FWIW, I am using regexp_replace to just take out the first occurrence of
each lexeme and then trying to cast back into a tsvector.
EG:
SELECT replace(
regexp_replace(
textin(
tsvector_out(
to_tsvector('default', coalesce(l.comments, ''))
)
)::TEXT
, '(:\\d+[ABCD]*)(\\,\\d+[ABCD]*)*', '\\1', 'g')
, '''', '')::tsvector
FROM listings l LIMIT 1;
ERROR: cannot cast type text to tsvector
What is interesting is that a basic select works probably because the
pseudo type 'cstring' is in effect.
select 'To a Vector'::TSVECTOR;
tsvector
-------------------
'a' 'To' 'Vector'
(1 row)
Time: 3.297 ms
Any ideas on how to get back to a cstring so that it will work
OR
how to make the text::TSVECTOR cast work?
Cheers,
James
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Next Message | Tom Lane | 2008-02-11 21:45:42 | Re: tsearch2 text::TSVECTOR cast not working for me on Pg 8.1.6 |
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