| From: | "Tomas Vondra" <tv(at)fuzzy(dot)cz> |
|---|---|
| To: | "Albe Laurenz" <laurenz(dot)albe(at)wien(dot)gv(dot)at> |
| Cc: | "Philipp Kraus *EXTERN*" <philipp(dot)kraus(at)flashpixx(dot)de>, pgsql-general(at)postgresql(dot)org |
| Subject: | Re: full text index / search |
| Date: | 2012-06-18 09:13:56 |
| Message-ID: | df7860b5a70f1eb73a5aebe9b83b4a65.squirrel@sq.gransy.com |
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| Thread: | |
| Lists: | pgsql-general |
On 18 Červen 2012, 11:04, Albe Laurenz wrote:
> Philipp Kraus wrote:
>> I have created a table with a text field under PG 9.1, that should
> store source codes. I would like to
>> search in this text field with regular expressions. I think I need a
> full-text-index, do I?
>> How can I create this index, do I need some additional extensions? The
> PG server runs under OSX
>> (installed on the DMG package).
>
> A full text index won't help you with regular expressions.
> It will only help with full text search using the match operator @@.
Also, it's possible to create regular index with custom operator class for
pattern matching queries. See this
http://www.postgresql.org/docs/9.1/interactive/indexes-opclass.html
Not a full-text index, though ...
T.
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