--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/db/libervia_pubsub_update_8_9.sql	Fri Oct 15 13:40:59 2021 +0200
@@ -0,0 +1,24 @@
+-- we check version of the database before doing anything
+-- and stop execution if not good
+\set ON_ERROR_STOP
+DO $$
+DECLARE ver text;
+BEGIN
+    SELECT value INTO ver FROM metadata WHERE key='version';
+    IF NOT FOUND OR ver!='8' THEN
+        RAISE EXCEPTION 'This update file needs to be applied on database schema version 8, you use version %',ver;
+    END IF;
+END$$;
+\unset ON_ERROR_STOP
+-- end of version check
+
+/* new "roster" table */
+CREATE TABLE roster (
+     roster_id serial PRIMARY KEY,
+     jid text NOT NULL UNIQUE,
+     version text,
+     updated timestamp with time zone NOT NULL,
+     roster xml NOT NULL
+);
+
+UPDATE metadata SET value='9' WHERE key='version';

--- a/db/pubsub.sql	Fri Oct 15 13:40:59 2021 +0200
+++ b/db/pubsub.sql	Fri Oct 15 13:40:59 2021 +0200
@@ -138,10 +138,20 @@
      FOR EACH ROW
      EXECUTE PROCEDURE update_data_fts();
 
+/* Roster */
+
+CREATE TABLE roster (
+     roster_id serial PRIMARY KEY,
+     jid text NOT NULL UNIQUE,
+     version text,
+     updated timestamp with time zone NOT NULL,
+     roster xml NOT NULL
+);
+
 
 CREATE TABLE metadata (
     key text PRIMARY KEY,
     value text
 );
 
-INSERT INTO metadata VALUES ('version', '8');
+INSERT INTO metadata VALUES ('version', '9');

--- a/sat_pubsub/pgsql_storage.py	Fri Oct 15 13:40:59 2021 +0200
+++ b/sat_pubsub/pgsql_storage.py	Fri Oct 15 13:40:59 2021 +0200
@@ -78,7 +78,7 @@
 parseXml = lambda unicode_data: generic.parseXml(unicode_data.encode('utf-8'))
 ITEMS_SEQ_NAME = 'node_{node_id}_seq'
 PEP_COL_NAME = 'pep'
-CURRENT_VERSION = '8'
+CURRENT_VERSION = '9'
 # retrieve the maximum integer item id + 1
 NEXT_ITEM_ID_QUERY = r"SELECT COALESCE(max(item::integer)+1,1) as val from items where node_id={node_id} and item ~ E'^\\d+$'"