text: exports.up = function(knex) {
    return knex.schema.alterTable("mandataires", function(table) {
      table.dropColumn("latitude");
      table.dropColumn("longitude");
    });
  };
  
  exports.down = function(knex) {
    return knex.schema.alterTable("mandataires", function(table) {
      table.float("latitude");
      table.float("longitude");
    });
  };
  