Correct way to set the driverOptions for Doctrine DBAL configuration in symfony2

Question

I have set driverOptions in the config file as mentioned in the doctrine DBAL documentation.

But this gives an error

1/1 InvalidConfigurationException: Unrecognized options "driverOptions" under "doctrine.dbal.connections.pdoDevCon"

My config file is

dbal:
  default_connection: pdoDevCon
  connections:
    pdoDevCon:
      driver:   %dev_database_driver%    # <
      host:     %dev_database_host%      # |
      port:     %dev_database_port%      # | Defined in
      user:     %dev_database_user%      # |
      password: %dev_database_password%  # <   
      charset:  UTF8
      driverOptions: {3: 2}
      mapping_types:
        enum: string
        set: string

orm:
    auto_generate_proxy_classes: %kernel.debug%
     pdoDevCon:
        connection: pdoDevCon
        mappings:
          AcmeDemoBundle: ~
          AcmeHelloBundle: ~ 

I am using PDO::ATTR_ERRMODE as 3 PDO::ERRMODE_EXCEPTION as 2, it does not work even if i use the strings.

Answer 1

From http://symfony.com/doc/master/reference/configuration/doctrine.html#doctrine-dbal-configuration

DoctrineBundle supports all parameters that default Doctrine drivers accept, converted to the XML or YAML naming standards that Symfony enforces. See the Doctrine DBAL documentation for more information.

There is no driverOptions in symfony yml configuration file, just options