Querying MySQL with JS Object returning [object Object] as table name

I'm building a program that queries MySQL databases, gets the tables, fields, field data types, and entries and returns it as a single object to be later used to view the MySQL data as a table.

This is what the built object will look like:

    {
    `Table_Name`: {
        Title: `Table_Name`,
        Fields: {
            `Field Name`: `Datatype`
        },
        RowData: []
    }

}

The query to get the tables is fine, however the query to get the row data isn't. The query function looks like this:

    function getRows(){

        let secondpromises = [];

        secondpromises.push(
            new Promise((resolve, reject) => {
                for(x in Tables){
                    Connect_SQL(SQLcreds, w_newSconn, (conn) => {
                        conn.query(`SELECT * FROM ${Tables[x]}`, (err, results) => {
                            if(err){
                                console.log(err);
                                reject(err);
                            }else{
                                for(r in results){

Tables[`${Tables[x].Title}`].RowData.push(results[r]);
                                }
                                resolve(results);
                            }
                        });
                    });

                    if(x == Tables.length - 1){
                        Promise.all(secondpromises).then(() => {
                            if(w_newSconn){
                                w_newSconn.close();
                                w_newSconn = null;
                            }
                            console.log(Tables);
                        });
                    }
                }
            })
        );
    }

The error is coming from conn.query(). It is throwing an error stating there is an error in my SQL syntax at:

SELECT * FROM [object Object]

I understand the reason why and I'm sure there is a way to resolve this through JSON.Stringify() but there must be a simpler way. I have already tried creating a variable like so:

let objArray = Object.keys(Tables)

But it still returned [object Object], any help would be appreciated.