(VDB-479) Upgrade Posgres to 11

db/schema.sql

@@ -2,8 +2,8 @@
 -- PostgreSQL database dump
 --
 
--- Dumped from database version 10.6
--- Dumped by pg_dump version 10.6
+-- Dumped from database version 11.2
+-- Dumped by pg_dump version 11.2
 
 SET statement_timeout = 0;
 SET lock_timeout = 0;
@@ -15,20 +15,6 @@ SET check_function_bodies = false;
 SET client_min_messages = warning;
 SET row_security = off;
 
---
--- Name: plpgsql; Type: EXTENSION; Schema: -; Owner: -
---
-
-CREATE EXTENSION IF NOT EXISTS plpgsql WITH SCHEMA pg_catalog;
-
-
---
--- Name: EXTENSION plpgsql; Type: COMMENT; Schema: -; Owner: -
---
-
-COMMENT ON EXTENSION plpgsql IS 'PL/pgSQL procedural language';
-
-
 SET default_tablespace = '';
 
 SET default_with_oids = false;