Mercurial > dive4elements > river
diff backend/doc/schema/postgresql-minfo.sql @ 8691:bfca77cbf353
(issue1750) There can be only one SQ-relation of a parameter for a time range (given by sq_relation_id) per station and some other attributes might be null.
| author | Tom Gottfried <tom@intevation.de> |
|---|---|
| date | Fri, 17 Apr 2015 14:55:42 +0200 |
| parents | 1a4ad0d4231a |
| children | 71b17f731762 |
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--- a/backend/doc/schema/postgresql-minfo.sql Fri Apr 17 14:50:08 2015 +0200 +++ b/backend/doc/schema/postgresql-minfo.sql Fri Apr 17 14:55:42 2015 +0200 @@ -399,6 +399,7 @@ cferguson NUMERIC, cduan NUMERIC, PRIMARY KEY (id), + UNIQUE(sq_relation_id, measurement_station_id, parameter), CONSTRAINT fk_sqr_id FOREIGN KEY (sq_relation_id) REFERENCES sq_relation(id) ON DELETE CASCADE, CONSTRAINT fk_mstation_id FOREIGN KEY (measurement_station_id)