Re: GiST index question

Hi Eric,

As Michael said, path data type does not support for gist operators.
Anyway, you could redefine data type using 'ltree' instead of 'path'. Take
a look on the following link:

http://www.postgresql.org/docs/9.1/static/ltree.html

Try to understand if this could be fine for you.

Cheers,

Giuseppe.

2014-09-04 6:31 GMT+02:00 Michael Paquier <michael(dot)paquier(at)gmail(dot)com>:

> On Thu, Sep 4, 2014 at 8:35 AM, Eric Fleming <efleming(at)gmail(dot)com> wrote:
> > I have a table that I have defined as:
> >
> > CREATE TABLE test (
> > "id" SERIAL PRIMARY KEY,
> > "first_path" path NOT NULL,
> > "second_path" path NOT NULL
> > );
> >
> > I am attempting to create a GiST index on the two "path" columns using:
> >
> > CREATE INDEX "idx_test_first_path" ON test USING gist(first_path);
> > CREATE INDEX "idx_test_second_path" ON test USING gist(second_path);
> >
> > I am getting this error:
> >
> > Error : ERROR: data type path has no default operator class for access
> > method "gist"
> >
> > Is it that I am not allowed to create an index on the path data type or
> do I
> > need to enable an extension for this to work? Thanks in advance for your
> > help.
> In-core contrib modules (and core) do not have yet support for gist
> operator classes for the datatype path as far as I recall.
> Regards,
> --
> Michael
>
>
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