Re: LTREE extension and "order by"

2011/7/21 Carla <cgourofino@hotmail.com>:
> Hmm, I'm using PostgreSQL 8.4 and it worked.
> Try to use the function ltree2text instead of ::text.
> select * from comments where article_id = 2 order by
> cast(string_to_array(ltree2text(path),'.') as integer[]);
>

this does not work in older versions

you can use http://www.pgsql.cz/index.php/PostgreSQL_SQL_Tricks#Cast_to_varchar

Regards

Pavel Stehule