Select Array from MSSQL and insert into postgresql

Hi. I try to read an array from MSSQL database and insert the Array data into a postgresql database. From the postgres node I get the "Error: msg.payload must be an array of queries".
The Output from mssql is an Array

the function node has follow Content:

var newMsg = { payload: msg.payload.length };
return newMsg;
var i;
var sql="";
var outputs=[];
var TagNumber;
var KeeperID;

for (i = 0; i< msg.payload.length; i++) {
    sql="INSERT INTO test_garment"+
    "VALUES (\""+TagNumber+"\",\""+KeeperID+"\");";

I dint see whats wrong ...