gosora/schema/mssql/query_activity_stream.sql

CREATE TABLE [activity_stream] (
    [asid] int not null IDENTITY,
    [actor] int not null,
    [targetUser] int not null,
    [event] nvarchar (50) not null,
    [elementType] nvarchar (50) not null,
    [elementID] int not null,
    [createdAt] datetime not null,
    [extra] nvarchar (200) DEFAULT '' not null,
    primary key([asid])
);