node.js - Sequelize query to group and limit base on a forign key -


i'm using sequelize postgresql database. messages data structure looks this:

id    message    status   sernderid    receiverid    reservationid  createdat

i'm trying group messages related reservation , return latest message index them. current query looks this:

message.findall({       where:{$or:[{senderid:user.id}, {receiverid:user.id}]},       group: 'reservationid',       order: [['createdat', 'desc' ]],       limit: 1     })

the query changes case on reservation id , gives me following error:

  message:"column "reservationid" not exist"   name:"sequelizedatabaseerror"

first, how prevent query change case , second, there better way write query?


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