Travis

.travis.yml

@@ -22,4 +22,4 @@ script:
 env:
   - DATABASE_URL=postgres://rrr:rrr@localhost/rrr
 addons:
-  postgresql: "10"
+  postgresql: "9.4"

server/migrations/2019-03-30-212058_create_post_view/up.sql

@@ -5,7 +5,7 @@ create or replace function hot_rank(
 returns integer as $$
 begin
   -- hours_diff:=EXTRACT(EPOCH FROM (timezone('utc',now()) - published))/3600
-  return 10000*sign(score)*log(1 + abs(score)) / power(((EXTRACT(EPOCH FROM (timezone('utc',now()) - published))/3600) + 2), 1.8);
+  return floor(10000*sign(score)*log(1 + abs(score)) / power(((EXTRACT(EPOCH FROM (timezone('utc',now()) - published))/3600) + 2), 1.8))::integer;
 end; $$
 LANGUAGE plpgsql;