add unique constraint for vehicles

CityofSantaMonica · May 21, 2020 · 891a744 · 891a744
1 parent d7b908a
commit 891a744
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Showing 2 changed files with 4 additions and 2 deletions.
diff --git a/db/migrations/mds-0.4.x.sql b/db/migrations/mds-0.4.x.sql
@@ -24,7 +24,8 @@ CREATE TABLE vehicles (
     battery_pct double precision null,
     last_updated timestamptz not null,
     ttl integer not null,
-    sequence_id bigserial not null
+    sequence_id bigserial not null,
+    CONSTRAINT unique_vehicle_event UNIQUE (provider_id, device_id, last_updated)
 );
 
 

diff --git a/db/setup/vehicles.sql b/db/setup/vehicles.sql
@@ -15,5 +15,6 @@ CREATE TABLE vehicles (
     battery_pct double precision null,
     last_updated timestamptz not null,
     ttl integer not null,
-    sequence_id bigserial not null
+    sequence_id bigserial not null,
+    CONSTRAINT unique_vehicle_event UNIQUE (provider_id, device_id, last_updated)
 );