Обсуждение: Tsearch2 indexing question....

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Tsearch2 indexing question....

От
mailinglists@net-virtual.com
Дата:
Hello,

First of all I want to say that I really like this tsearch2 - it's a
really great addition to Postgres!..

I am having one minor issue with it and I just can't quite figure out the
best way to solve it...

Basically I had a user enter the following string "Executive
Assistant/Network Manager"...   I am unable to find this data by doing a
search for "Assistant" or "Network"...  I guess this is due to the "/"
between the two words...  In any event, is there an easy solution to
this?..

- Greg

Re: Tsearch2 indexing question....

От
Teodor Sigaev
Дата:
Easy way:
comment out in wordparser/parser.l:
[[:alnum:]\./_-]+"/"[[:alnum:]\./_-]+ {
         token = tsearch2_yytext;
         tokenlen = tsearch2_yyleng;
         return FILEPATH;
}

but lexeme as '/usr/local/bin/perl' will be indexed as usr, local, lib, perl.
Remember, after recompile and install, you should reindex text data.

Complex way: write your own parser.


mailinglists@net-virtual.com wrote:
> Hello,
>
> First of all I want to say that I really like this tsearch2 - it's a
> really great addition to Postgres!..
>
> I am having one minor issue with it and I just can't quite figure out the
> best way to solve it...
>
> Basically I had a user enter the following string "Executive
> Assistant/Network Manager"...   I am unable to find this data by doing a
> search for "Assistant" or "Network"...  I guess this is due to the "/"
> between the two words...  In any event, is there an easy solution to
> this?..
>
> - Greg
>
> ---------------------------(end of broadcast)---------------------------
> TIP 9: the planner will ignore your desire to choose an index scan if your
>       joining column's datatypes do not match

--
Teodor Sigaev                                  E-mail: teodor@sigaev.ru