From: Thomas H. <me@alternize.com>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: pgsql-bugs@postgresql.org
Subject: Re: BUG #3767: tsearch2 index creation fatal crash
Date: Wed, 21 Nov 2007 05:42:36 +0100
Message-ID: <4743B73C.4080606@alternize.com> (raw)
In-Reply-To: <22471.1195616725@sss.pgh.pa.us>
References: <200711210225.lAL2PE8a064911@wwwmaster.postgresql.org>
<47439A13.3000404@alternize.com>
<21708.1195613326@sss.pgh.pa.us>
<47439DDF.5010600@alternize.com>
<22471.1195616725@sss.pgh.pa.us>
>> there are more problems with tsvectors. this also fails:
>
>> SELECT ' just a test: 123 '::tsvector;
>> ERROR: syntax error in tsvector: " just a test: 123 "
>
> That's not a bug; your input isn't valid tsvector syntax.
>
ok. after re-reading page
http://www.postgresql.org/docs/8.3/static/textsearch-intro.html#TEXTSEARCH-SEARCHES
i saw my mistake. i misinterpreted the examples to show the possibility
to convert *any* text by using casting to tsvector as an alternative to
using to_tsvector :)
to new tsearch-users, it might not be obvious clear that you can't just
cast any text but should use to_tsvector. the example string 'a fat cat
sat on a mat and ate a fat rat' looks like an normal "random" text
string, especially when a tsvector in psql looks like
'ate':9 'cat':3 'fat':2,11 'mat':7 'rat':12 'sat':4
and doesn't contain stopwords like "a" and "and", which are included in
the casted string...
maybe an additional example that shows the usage of to_tsvector for any
input string would help...
thanks, thomas
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To: pgsql-docs@postgresql.org
Cc: me@alternize.com, tgl@sss.pgh.pa.us, pgsql-bugs@postgresql.org
Subject: Re: BUG #3767: tsearch2 index creation fatal crash
In-Reply-To: <4743B73C.4080606@alternize.com>
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