diff --git a/00-tables.sql b/00-tables.sql
index baa1957dc8b7f65adc35e7b10fc98f73f3eea79b..f7b9820b8d5c7f28a35863db8712cf36c0e6a55d 100644
--- a/00-tables.sql
+++ b/00-tables.sql
@@ -53,20 +53,16 @@ CREATE TABLE node (
     group_read             VARCHAR[]     default NULL,
     group_write            VARCHAR[]     default NULL,
     is_public              BOOLEAN       default NULL,
-    delta                  BIGINT        default NULL,
-    /* it may be a delta of data which is transferred through an asynchronous transfer.
-       It should stay on the transfer service (e.g. Redis) */
+    quota                  BIGINT        default NULL,
+    -- total container quota (in bytes)
     content_type           VARCHAR       default NULL,
     content_encoding       VARCHAR       default NULL,
     content_length         BIGINT        default NULL,
     content_md5            TEXT          default NULL,
     created_on             TIMESTAMP     default CURRENT_TIMESTAMP,
     last_modified          TIMESTAMP     default NULL,
-    -- link                  TEXT          default NULL,
     accept_views           TEXT[]        default NULL,
     provide_views          TEXT[]        default NULL,
-    -- storage service mapping used to access the content of this node 
-    -- storage_id            VARCHAR,    
     protocols              TEXT[]        default NULL,
     PRIMARY KEY (node_id),
     FOREIGN KEY (location_id) REFERENCES location (location_id)
@@ -94,20 +90,16 @@ CREATE TABLE deleted_node (
     group_read             VARCHAR[]     default NULL,
     group_write            VARCHAR[]     default NULL,
     is_public              BOOLEAN       default NULL,
-    delta                  BIGINT        default NULL,
-    /* it may be a delta of data which is transferred through an asynchronous transfer.
-       It should stay on the transfer service (e.g. Redis) */
+    quota                  BIGINT        default NULL,
+    -- total container quota (in bytes)
     content_type           VARCHAR       default NULL,
     content_encoding       VARCHAR       default NULL,
     content_length         BIGINT        default NULL,
     content_md5            TEXT          default NULL,
     created_on             TIMESTAMP     default NULL,
     last_modified          TIMESTAMP     default NULL,
-    -- link                  TEXT          default NULL,
     accept_views           TEXT[]        default NULL,
     provide_views          TEXT[]        default NULL,
-    -- storage service mapping used to access the content of this node 
-    -- storage_id            VARCHAR,    
     protocols              TEXT[]        default NULL,
     -- add a deleted_on timestamp to keep track
     deleted_on             TIMESTAMP     default CURRENT_TIMESTAMP,