Re: db_mysql: how to get column name?

[luntik2012]

[https://nim-lang.org/docs/db_mysql.html#instantRows.i%2CDbConn%2Cseq%5BDbColumn%5D%2CSqlQuery%2Cvarargs%5Bstring%2C%5D](https://nim-lang.org/docs/db_mysql.html#instantRows.i%2CDbConn%2Cseq%5BDbColumn%5D%2CSqlQuery%2Cvarargs%5Bstring%2C%5D)
    
    
    const q = sql"select * from mytable"
    var c: DbColumns
    for row in db.instantRows(q, c):
      echo row[0]
      echo c
    
    
    Run

got this
    
    
    641014
    @[]
    641015
    @[]
    
    
    Run

how is it possible?