text: exports.up = function(knex) {
      return knex.schema.alterTable("organization", (table)=>{
          table
              .foreign("address_id")
              .references("address.id")
              .onDelete("SET NULL")  
        });
    };
    
    exports.down = function(knex) {
      return knex.schema.alterTable("organization", (table)=>{
          
          table
              .dropForeign("address_id");
    
      })
    };