Add PostgreSQL

storage/postgresql/schema.hcl

@@ -0,0 +1,36 @@
+table "incentive_subscriptions" {
+  schema = schema.carpool_incentives
+  column "id" {
+    null = false
+    type = uuid
+  }
+  column "incentive_id" {
+    null = false
+    type = text
+  }
+  column "user_id" {
+    null = false
+    type = text
+  }
+  column "identity_verification_ids" {
+    null = true
+    type = sql("text[]")
+  }
+  column "data" {
+    null = false
+    type = jsonb
+  }
+  column "declined" {
+    null = true
+    type = boolean
+  }
+  column "subscription_datetime" {
+    null = true
+    type = timestamptz
+  }
+  primary_key {
+    columns = [column.id]
+  }
+}
+schema "carpool_incentives" {
+}