1 files changed, 9 insertions, 0 deletions
diff --git a/lib/gitlab/database.rb b/lib/gitlab/database.rb
index 04fa6a3a5de..078609c86f1 100644
--- a/lib/gitlab/database.rb
+++ b/lib/gitlab/database.rb
@@ -1,5 +1,10 @@
 module Gitlab
   module Database
+    # The max value of INTEGER type is the same between MySQL and PostgreSQL:
+    # https://www.postgresql.org/docs/9.2/static/datatype-numeric.html
+    # http://dev.mysql.com/doc/refman/5.7/en/integer-types.html
+    MAX_INT_VALUE = 2147483647
+
     def self.adapter_name
       connection.adapter_name
     end
@@ -30,6 +35,10 @@ module Gitlab
       order
     end
 
+    def self.random
+      Gitlab::Database.postgresql? ? "RANDOM()" : "RAND()"
+    end
+
     def true_value
       if Gitlab::Database.postgresql?
         "'t'"