gosora/schema/mysql/query_activity_stream.sql

CREATE TABLE `activity_stream`(
    `asid` int not null AUTO_INCREMENT,
    `actor` int not null,
    `targetUser` int not null,
    `event` varchar(50) not null,
    `elementType` varchar(50) not null,
    `elementID` int not null,
    `createdAt` datetime not null,
    `extra` varchar(200) DEFAULT '' not null,
    primary key(`asid`)
);