DBAL-83: BigInt type is missing the convertToPHPValue method

[milokmet]

http://www.doctrine-project.org/jira/browse/DBAL-83

[beberlei]

On 32 bit machines a Bigint can be larger as PHP_MAX_INT, that is why its not converted to an int instead kept as a string. Maybe someone needs to use bcmath for it and such.

[milokmet]

Ah yes. But then there is one failing test case on PostgreSQL.

1. Doctrine\Tests\DBAL\Functional\TypeConversionTest::testIdempotentDataConversion with data set Some code optimization in Connection class #3 ('bigint', 12345678, 'string')
   The expected type from the conversion to and back from the database should be string
   Failed asserting that integer:12345678 is of type "string".

/usr/share/php/Doctrine2/dbal/tests/Doctrine/Tests/DBAL/Functional/TypeConversionTest.php:84

I don't understant, why only postgres has this problem.
But this is not my issue. I just want to test DBAL against mysql, postgres and oracle, and this failure I found in postgres.