is_local integer default 0 /* comment 'notice was generated by a user' */,
source varchar(32) /* comment 'source of comment, like "web", "im", or "clientname"' */,
conversation integer /*id of root notice in this conversation' */ references notice (id),
is_local integer default 0 /* comment 'notice was generated by a user' */,
source varchar(32) /* comment 'source of comment, like "web", "im", or "clientname"' */,
conversation integer /*id of root notice in this conversation' */ references notice (id),