On 10 May 2010, at 2:09, Jonathan Vanasco wrote:
i was given a unique index on
(country_id, state_id, city_id, postal_code_id)
in the two records below, only country_id and state_id are assigned ( aside
from the serial )
geographic_location_id | coordinates_latitude |
On May 10, 2010, at 6:29 AM, Alban Hertroys wrote:
As the docs state and as others already mentioned, Null values are
not considered equal.
Ah. I interpreted that wrong. I thought it applied to indexes
differently. I'll have to experiment now...
--
Sent via pgsql-general mailing
Alban Hertroys dal...@solfertje.student.utwente.nl wrote:
[...]
None of these solutions are pretty. It should be quite a common problem
though, how do people normally solve this?
Partial indexes? Doesn't look pretty either though:
| tim=# \d DE_Postcodes
| Tabelle »public.de_postcodes«
|
-- running pg 8.4
i have a table defining geographic locations
id
lat
long
country_id not null
state_id
city_id
postal_code_id
i was given a unique index on
(country_id, state_id, city_id, postal_code_id)
the unique index isn't
2010/5/10 Jonathan Vanasco postg...@2xlp.com:
-- running pg 8.4
i have a table defining geographic locations
id
lat
long
country_id not null
state_id
city_id
postal_code_id
i was given a unique index on
(country_id, state_id,
Use unique index as follows:
create unique index unq_idx on table_name (coalesce(country_id,0),
coalesce(state_id,0), coalesce(city_id,0),coalesce(postal_code_id,0) );
On Mon, May 10, 2010 at 6:09 AM, Jonathan Vanasco postg...@2xlp.com wrote:
-- running pg 8.4
i have a table defining
