rowid,room_id,user_id,event_id,membership,event_stream_ordering
1538,!CoWnVhAxFvKSlNiGFy:matrix.jamesst.one,@meta_1421375377:matrix.jamesst.one,$hitwKm_MmlAOIonnhWrBfm4iDMK_3cKSgKGXKU2_DaM,join,14966