Added a new configuration option: defaultQueryHints, which allows to populate all queries by default set of hints.
Fix comment
Allow to use object as a hint value.
Add class name as argument.
Pass class name to constructor.
Pass class name to constructor.
iteration risk note

> instead of loading the whole result into memory at once
is not the full truth.

There is a certain risk of processes getting killed due to memory allocation with large iteration. This is caused by result buffering of the client not being visible to PHP and thus not from 'within' the process.

It is not certain that this occurs with all database clients but seems rather likely to at this point.

This is only a proposal for discussion as I am not certain how to best add the information or if to add it at all (was it obvious before?). Personally I got confused by the existing description and didn't notice the memory implication until further investigation using `top` reported the process to run at 3+GB memory while PHP reported 400M real peak usage.
makes doctrine less dependent upon the symfony yamp component
allow passing EntityManagerInterface when creating a HelperSet
stop executing executeDeletions when there is nothing to to delete anymore
Allow if parameter exists in SQLFilter
Added options attribute export to Annotation, Xml & Yaml
exporters.
cs fix
Renamed _exportOptions method
Failing Test (since commit 53a5a48aed7d87aa1533c0bcbd72e41b686527d8)

Hi,

It seems to be a regression since the commit https://github.com/doctrine/doctrine2/commit/53a5a48aed7d87aa1533c0bcbd72e41b686527d8

Doctrine\ORM\PersistentCollection can be populated in $changeSet if you set a PreUpdate and PostUpdate event.

Original issue: http://www.doctrine-project.org/jira/browse/DDC-3033
Update DDC3033Test.php
Update DDC3033Test.php
Added MEMBER OF and INSTANCE OF helpers to ExpressionBuilder
Removed double linebreaks
Processed code-review feedback