mediawiki-extensions-Echo/db_patches/echo_unread_wikis.sql

CREATE TABLE /*_*/echo_unread_wikis (
	-- Primary key
	euw_id INT UNSIGNED NOT NULL PRIMARY KEY AUTO_INCREMENT,
	-- Global user id
	euw_user INT UNSIGNED NOT NULL,
	-- Name of wiki
	euw_wiki VARCHAR(64) NOT NULL,
	-- unread alerts count on that wiki
	euw_alerts INT UNSIGNED NOT NULL,
	-- Timestamp of the most recent unread alert
	euw_alerts_ts BINARY(14) NOT NULL,
	-- unread messages count on that wiki
	euw_messages INT UNSIGNED NOT NULL,
	-- Timestamp of the most recent unread message
	euw_messages_ts BINARY(14) NOT NULL
) /*$wgDBTableOptions*/;

CREATE UNIQUE INDEX /*i*/echo_unread_wikis_user_wiki ON /*_*/echo_unread_wikis (euw_user,euw_wiki);