diff --git a/db/migrations/6_role-adder.sql b/db/migrations/6_role-adder.sql
new file mode 100644
index 0000000..7206eca
--- /dev/null
+++ b/db/migrations/6_role-adder.sql
@@ -0,0 +1,11 @@
+CREATE TABLE IF NOT EXISTS roles_adder (
+    server  integer not null,
+    role_a  integer not null,
+    role_b  integer not null,
+    role_c  integer not null,
+    PRIMARY KEY(server,role_a,role_b,role_c)
+);
+CREATE INDEX IF NOT EXISTS index_roles_adder_server ON roles_adder (server);
+CREATE INDEX IF NOT EXISTS index_roles_adder_from ON roles_adder (role_a,role_b);
+CREATE INDEX IF NOT EXISTS index_roles_adder_to ON roles_adder (role_c);
+CREATE INDEX IF NOT EXISTS index_roles_adder_search ON roles_adder (server,role_a,role_b);
\ No newline at end of file