There are inconsistencies with some class and namespace names that include acronyms.

Examples:

Classes with upper-casing:
ORMException, DBALException, OCI8Connection, etc.

Classes with proper-casing:
RunDqlTask, CliException, MySqlPlatform, etc.

Namespaces with upper-casing:
DBAL, ORM, Doctrine\DBAL\Driver\PDOMsSql, etc.

Namespaces with proper-casing:
Doctrine\Common\Cli, Doctrine\DBAL\Tools\Cli\, Doctrine\ORM\Id, etc.

There is more proper-casing than upper-casing. IMHO, proper-casing is better as it's easier to read "SqlException" than it is to read "SQLException" (the "E" looks like part of the acronym), and things like "CLITask" can be avoided.

I discussed this a bit with Benjamin and Guilherme, and they were unsure and said that the whole team needed to reach consensus.

I'm leaving the priority as "Major" because this should probably be fixed sooner rather than later to prevent compatibility breaks.

More information coming soon. Attaching a test case

Per default Doctrine 2 adds an IN(...)-part to the query when hydrating an entity where a discriminator column is defined. While this makes sense as a default behavior, it would be pretty helpful if one could disable the WHERE-clause for discriminator columns alltogether for performance optimization.

In the QueryBuilder section of the documentation (http://www.doctrine-project.org/docs/orm/2.1/en/reference/query-builder.html#the-expr-class) there's an example with statements like

 
$qb->expr()->select('u')

But this doesn't work anymore.

We have association on non primary key. Something like this:

Entities\Payment:
  type: entity
  table: payments
  fields:
    id: 
      id: true
      type: integer
      nullable: false
      generator:
        strategy: IDENTITY
[-- skipped --]
  manyToOne:
    order:
      targetEntity: Entities\Order
      inversedBy: payments
      joinColumn:
        name: scode
        referencedColumnName: scode

Entities\Order:
  type: entity
  table: h_orders
  fields:
    id:
      id: true
      type: integer
      unsigned: false
      nullable: false
      generator:
        strategy: IDENTITY
    scode:
      type: integer
      unsigned: false
      nullable: false
[-- skipped --]
  oneToMany:
    payments:
      targetEntity: Entities\Payment
      mappedBy: order

When I try to fetch Order from Payment with lazy loading I receive empty Order object with null properties. If I use eager fetching Order object is valid.
SQL generated for lazy loading seems to be valid, so I suppose the problem is in mapping result to the object. At the same time lazy loading works fine with 2.0.6 version.

Another problem appears while persisting new Payment.

$payment = new \Entities\Payment();
...
$order = $this->em->getRepository('\Entities\Order')->find(46320);
$payment->setOrder($order);
$order->addPayments($payment);
$this->em->persist($payment);
$this->em->flush();

I get this error: Fatal error: Uncaught exception 'PDOException' with message 'SQLSTATE[23000]: Integrity constraint violation: 1048 Column 'scode' cannot be null' in /usr/share/php/Doctrine/DBAL/Statement.php:131

I found issue which is still open and looks like mine – http://www.doctrine-project.org/jira/browse/DDC-1114. What do you think about this?

Could it be possible to allow for arbitrary many to one entities through a "class + id" construct as join columns?

Or maybe some template-files could be provided for all stubs.

private static $_setMethodTemplate =
'/**
 * <description>
 *
 * @param <variableType>$<variableName>
 */
public function <methodName>(<methodTypeHint>$<variableName>)
{
<spaces>$this-><fieldName> = $<variableName>;

<spaces>return $this;</spaces>
}';

Doctrine:schema:update --force is the same as doctrine:schema:create.

Under the hood, this may not be true, but they basically accomplish the same task. Schema:create should be removed, as it is redundant.

Just look at django, one command to update db:

./manage.py syncdb

Not saying that django gets everything correct, but the one command to synchronize the database is consistent. doctrine:schema:update should be smart enough to do all of the work, instead of relying on the redundant doctrine:schema:create.

Read the IRC log:

[2:38pm] guilhermeblanco: beberlei: ping
[2:38pm] guilhermeblanco: I'm curious about a feature if Doctrine supports
[2:38pm] guilhermeblanco: if we do this on a proxy:
[2:38pm] guilhermeblanco: $proxy->getOneToOneAssoc()
[2:39pm] guilhermeblanco: shouldn't Doctrine already populate the assoc entity?
[2:39pm] guilhermeblanco: it would be an inner join
[2:39pm] beberlei: how would doctrine know it needs it?
[2:39pm] guilhermeblanco: beberlei: it always repass the ClassMetadata to Persister
[2:40pm] guilhermeblanco: so all needed item is to also pass the fieldname/assocname
[2:40pm] beberlei: but how would doctrine know getOneToOneASsoc() really returns this assoc
[2:40pm] beberlei: it could contain any logic
[2:40pm] guilhermeblanco: it wouldn't... but as soon as we trigger __load($fieldName)
[2:40pm] guilhermeblanco: we know that we could populate not only the Proxy, but also assoc
[2:40pm] beberlei: by convention?
[2:40pm] guilhermeblanco: ya
[2:41pm] beberlei: sounds good, can you open a ticket?
[2:41pm] guilhermeblanco: getUser() would trigger __load('user')
[2:41pm] guilhermeblanco: sure!
[2:41pm] guilhermeblanco: I'll pastie this as content... it would be awesome to have
[2:41pm] guilhermeblanco: I see a lot of queries here that could be optimized 

http://www.doctrine-project.org/docs/orm/2.0/en/reference/caching.html
mentions $cacheDriver->setManageCacheIds(true);.
But method absent from V 2.04, possibly just needs a version note next to it.

a quick search through the ORM code base finds quite a few tabs. other doctrine projects there might also be some, though in common i only found some inside the LGPL license file.

On http://www.doctrine-project.org/docs/orm/2.0/en/reference/dql-doctrine-query-language.html#adding-your-own-functions-to-the-dql-language the code example is slightly incorrect.

Mistakes:

• Lexer::T_ABS doesn't exist anymore, I assume Lexer::T_IDENTIFIER is what one wants to use
• Missing use for \Doctrine\ORM\Query\Lexer

Additionally, the section should tell the user that he best has a look at lib/Doctrine/ORM/Query/AST/Functions/* to learn how to write custom functions. It also could be noted that stored procedures can be called with custom functions.

We should optimize code-generation somehow.

Igbinary is supposed to be faster and better than serialize/unserialize(). We should check if its relevant for us (metadata and query caching for example):

https://github.com/phadej/igbinary

Pull-Request was automatically synchronized: https://github.com/doctrine/doctrine2/pull/162

Wheeee, nested proxies can be generated without hassle!

Error messages throughout ClassMetadata validation and UnitOfWork cycles can be significantly improved.

Work is being done on: https://github.com/doctrine/doctrine2/tree/ImproveErrorMessages

Add test for DDC-1437

There should be a sane way to skip sources of errors in SchemaTool and the DatabaseDriver.

We can implement optimistic locking using hash values or other all columns of an entity

This issue is created automatically through a Github pull request on behalf of

:

Url: https://github.com/doctrine/doctrine2/pull/110

Message:

The magic `findBy` and `findOneBy` methods don't support passing NULL as the value, because ["we cannot (yet) transform it into IS NULL"](https://github.com/doctrine/doctrine2/blob/master/lib/Doctrine/ORM/EntityRepository.php#L207).

However, `BasicEntityPersister::_getSelectConditionSQL()` [does support that](https://github.com/doctrine/doctrine2/blob/master/lib/Doctrine/ORM/Persisters/BasicEntityPersister.php#L1229). It seems like leftovers from when there was no support for it. I tried it locally (after applying this change) and it does seem to work well.

alOneh created a pull request on Github:

Url: https://github.com/doctrine/doctrine2/pull/109

This issue is created automatically through a Github pull request on behalf of catalinux:

Url: https://github.com/doctrine/doctrine2/pull/507

Message:

extract metadata if you would filter like this: --filter="Article"
would extract also for "ArticleItems" (article_items table). Now you
can use --filter="Article$" if you want only that table (articl)

Subselect ::= SimpleSelectClause [SubselectFromClause] [WhereClause] [GroupByClause] [HavingClause] [OrderByClause]

Simple way to select colum
for example I want select id's of entity's to save in cache or in other select query
Or i vant select one distinct field.

SELECT u.id FROM User as u

getResult give

array(
0=>array('id' => 1),
1=>array('id' => 2),
)

but how can take this

array(
0=> 1,
0=> 2,
)

This issue is created automatically through a Github pull request on behalf of Fran6co:

Url: https://github.com/doctrine/doctrine2/pull/457

Message:

This issue is created automatically through a Github pull request on behalf of bamarni:

Url: https://github.com/doctrine/doctrine2/pull/434

Message:

If DDC-2004 gets approved.

When calling with lazy loading the Sql generated doesn't convert the parameters according to their types. After debugging the problem I found that the problem is in the getType($field, $value) function in the BasicEntityPersister as it is it will never be able to return the filed type when called for lazy loading for oneToMany or ManyToMany. I put a quick fix for my self

 private function getType($field, $value)
    {

        switch (true) {
           //here we have original code
            default:

            	$type = null;
               // my fix starts here
            	$fieldParts = explode('.', $field);
            	if (count($fieldParts > 1)) {
	            	foreach ($this->_class->associationMappings as $mapping) {
						if (isset($mapping['joinColumnFieldNames'][$fieldParts[1]])) {
							$targetClass  = $this->_em->getClassMetadata($mapping['targetEntity']);

							if (isset($targetClass->fieldNames[$fieldParts[1]])) {
								$type = $targetClass->fieldMappings[$targetClass->fieldNames[$fieldParts[1]]]['type'];
							}

							break;
						}
	            	}
            	}
//my fix end here
        }

       //here we have original code

        return $type;
    }

i have only added that check in the default case of the switch. I am not sure if that is the most elegant way. I hope that helps and that it will be fixed soon. Thanks for the great work .

This issue is created automatically through a Github pull request on behalf of Romain-Geissler:

Url: https://github.com/doctrine/doctrine2/pull/432

Message:

DBAL allows you to define custom field types for your entities, and those are seamlessly converted from PHP to SQL value. However, you can't those custom types as parameters without type hinting it :

```php
$qb->select('e')
->from('Entity', 'e')
->where('e.customField = :customFieldValue')
->setParameter('customFieldValue',$customFieldValue,$customFieldDBALType);
//this third argument is for now compulsory
:
```

In my case, ``$customFieldValue`` is an object that won't work well if converted with the default string type. I added a new DBAL interface (see doctrine/dbal#193 ) and tweaked the parameter type inference so that custom values can advertise their DBAL type.

There is currently no way to dynamically override the parameter type inference logic, this is one design that allows it in some cases.

This issue is created automatically through a Github pull request on behalf of craigmarvelley:

Url: https://github.com/doctrine/doctrine2/pull/429

Message:

Hi,

This is a possible fix for http://www.doctrine-project.org/jira/browse/DDC-1995, in that it resolves the issue for me but I'm afraid I haven't had time to test it extensively with more complex queries than the use case I gave in that ticket.

Cheers,
Craig

This issue is created automatically through a Github pull request on behalf of djlambert:

Url: https://github.com/doctrine/doctrine2/pull/419

Message:

This PR adds ODM embedded-like functionality to the ORM.

Including the new @MappedAssociation annotation on a field having a one-to-one association adds a discriminator column to the table for storing the class name of a "mapped" entity.

This allows a class or mapped superclass with a one-to-one identifying association to be extended by additional entities without requiring any code changes (as is required with the discriminator map when using inheritance).

I apologize if this is the incorrect way to submit a feature request. Currently just the annotation driver has been updated, I wanted to get feedback before continuing with the remaining drivers. Models and tests are included.

While it is already possible to speed up batch inserts by using raw SQL, that has the disadvantage to maintain a separate set of code that needs to be kept in sync with your schema.

Therefore, it would be nice if the entity manager would provide a special batch insert mode where it can skip the change tracking related features, collection snapshots, etc. This might already be good enough for many people.

Check feasibility of this kind of query different from FROM Class1 a1, Class2 a2 to allow arbitrary joins between classes.

Pull-Request was automatically synchronized: https://github.com/doctrine/doctrine2/pull/243

I'd love to have my custom proxy factory used with ORM, which is not possible at the moment

(my experimental proxy https://github.com/juzna/doctrine2/commit/7822446036201b066e390b2e182cac1dc0c85430 and some comments about it http://blog.juzna.cz/2011/06/lazy-loading-in-php/)

When using setFirstResult() and omitting setMaxResults(), MySQL throws an error. This was very confusing for me until I dumped the SQL statements and found out the reason.

I know that MySQL doesn't directly support this, their manual says that you should set the second parameter to LIMIT to a very high number (18446744073709551615 in their example).

I'd recommend that either throwing an error in the specific platform driver or follow the MySQL example.

Many related "standing data" tables are very static and seldom change. There should be a metadata config to enable result cache for ALL repository operations.

@entity(resultCache=@cache(ttl=3600))

Would lead to more optimal queries, while still allowing for LEFT JOIN. Also related to this:
https://groups.google.com/forum/#!topic/doctrine-user/znkkP7IF_Aw

Pull-Request was automatically synchronized: https://github.com/doctrine/doctrine2/pull/232

Hi all!
This PR will add a better support for entities with association keys.

getType will check recursively to find a type for the identifier.
getIndividualValue will search recursively to find the identifier value

trygetById improved, using a recursive function to find an id value instead of implode functions (that cause exceptions if the identifier is an object and do not implements __toString method).

When ordering a JTI entity on id, the generated SQL will use the table of the root entity. This is because the root entity is listed as owner of the field in the _owningTableMap, leading to non-optimal queries.

More information see:
https://groups.google.com/forum/#!topic/doctrine-user/znkkP7IF_Aw

With PHP 5.4 and traits coming we should find a way where you can add xml and yml configurations for a trait and upon loading an entity X, it also loads the trait configuration of this entity.

Pull-Request was automatically synchronized: https://github.com/doctrine/doctrine2/pull/217

Schema Manager had no way to define extra options ("comment" option for example). It is possible to add these options via Annotations. After the fix adding `@ORM\Column(type="string", options=

)` starts to work producing valid SQL schema with COMMENT output.

SELECT  u, u.name AS HIDDEN n FROM User u WHERE n = ?1

Is broken. Error:

SQLSTATE[42S22]: Column not found: 1054 Unknown column 'sclr16' in 'where clause

On a query like:

SELECT s0_.id AS id0, s0_.a AS a1, s0_.b AS b2, s0_.c AS c3, s0_.d AS d4, s0_.e AS e5, s0_.f AS f6, s0_.g AS g7, s0_.h AS h8, s0_.i AS i9, s0_.j AS j10, s0_.k AS k11, s0_.l AS l12, s0_.m AS m13, s0_.n AS n14, s0_.o AS o15, 123456789 AS sclr16, s0_.p AS p17 FROM myEntity s0_ WHERE s0_.a = 1 AND sclr16 <= ? ORDER BY sclr16 ASC 

This issue is created automatically through a Github pull request on behalf of Ocramius:

Url: https://github.com/doctrine/doctrine2/pull/406

Message:

This PR is related to doctrine/common#168.

In this PR, the `ProxyFactory` has been reduced to an object builder and it's public API has been kept intact (While the proxy `Autoloader` has been moved to doctrine/common). It would be interesting to define what this builder could do with the `ProxyFactory` to get its own customizations introduced.

https://github.com/symfony/symfony/pull/4730

I am packaging the DoctrineDBAL PEAR package for Fedora and would like to have the following updates:

• package.xml role for LICENSE changed from "data" to "doc"

• package.xml role for UPGRADE* changed from "data" to "doc"

• package.xml role for Doctrine/ORM/README.markdown changed from "data" to "doc"

• add some content to Doctrine/ORM/README.markdown (when building RPM this file throws a warning because it is empty)

• doctrine.bat should only be installed on Windows OS

This issue is created automatically through a Github pull request on behalf of Burgov:

Url: https://github.com/doctrine/doctrine2/pull/385

Message:

using the new ResolveTargetEntity functionality we noticed we needed another feature:

From the Symfony Bundle defining the interface, we'd like to be able to fetch entities by this very interface name, e.g.:

``` php
$em->find('Foo\BarBundle\Entity\PersonInterface', 1);
```

or

``` php
$em->getRepository('Foo\BarBundle\Entity\PersonInterface')->findAll();
```

This PR sets metadata for the interface when metadata for a class is loaded that the interface is configured for

There's two problems with current CLI implementation:

1 - composer `autoload.php` file is hardcoded, which means that it is making assumptions about where `doctrine/orm` has been installed, and it also makes the assumption that `doctrine/orm` is not the main package.
2 - composer is a requirement, while requiring it should just fail silently and allow the end user to use his own autoloading strategy

As per our conversation during SFLive Paris 2012, we should create a command that receives a DQL and exposes back to you a PHP code of an object holding a conversion to NativeQuery, which is faster.

Currently, method setParameters in AbstractQuery and QueryBuilder only appends new parameters to the list. It should actually override the existing ones.
To be able to correctly fix this, we need to create a ParameterCollection which we can use/reuse to set/remove/append new parameters.
These elements should also support parameter types.

This issue is created automatically through a Github pull request on behalf of catacgc:

Url: https://github.com/doctrine/doctrine2/pull/352

Message:

See catacgc/dbal#153

This issue is created automatically through a Github pull request on behalf of marijn:

Url: https://github.com/doctrine/doctrine2/pull/348

Message:

Initial work (in progress) on a test suite for the arbitrary object hydrator, as discussed in DDC-1819[1]. Any tips are appreciated. I'm not too sure what the test suite should and should not cover.

Other questions I have include:

1. Should the `HYDRATE_ARBITRARY_OBJECT` constant be added to the `AbstractQuery` class or the `NativeQuery` class? It only makes sense in the former but it might be missed when more constants are added in the future...
2. Should I use data providers in my tests for the result set data?
3. Should my tests be added to a `DDC1819` namespace?
4. Should I add functional tests?

[1]: http://www.doctrine-project.org/jira/browse/DDC-1819

Because you save column types in fieldmappings only, type information is not saved for join columns.

Not having type info for join columns, makes it impossible to do call 'convertToPhpValue' on join columns.

For example see a demo of problem here:
https://github.com/doctrine/doctrine2/pull/347

Similar to DDC-1813 I propose saving 'quote' status in ClassmetadataInfo#quotedColumns instead of ClassmetadataInfo#fieldmappings['fieldname']['quoted']

Otherwise you have quotation info only for fieldColumns and not association columns

Give correct names to arguments

    public function addMetaResult($alias, $columnName, $fieldName, $isIdentifierColumn = false)
    {

$alias - should be $tableAlias
$columnName should be $columnAlias
$fieldName should be $columnName

Here are some exmple calls from code:
AbstractEntityInheritancePersister.php
79: $this->_rsm->addMetaResult('r', $columnAlias, $joinColumnName);
SqlWalker.php
$this->_rsm->addMetaResult($dqlAlias, $columnAlias, $discrColumn['fieldName']);
$this->_rsm->addMetaResult($dqlAlias, $columnAlias, $srcColumn, (isset($assoc['id']) && $assoc['id'] === true));
$this->_rsm->addMetaResult($dqlAlias, $columnAlias, $srcColumn);

This issue is created automatically through a Github pull request on behalf of pjedrzejewski:

Url: https://github.com/doctrine/doctrine2/pull/340

Message:

Sorry if there is any reason why this is not implemented already.
This is useful when some feature, for example `soft-deleteable` filter may be optional.

Attached is a small patch for a bug in the file JoinedSubclassPersister.php. When persisting multiple new entities that are subclasses of a baseclass (joined), and having the @Version attribute set, only for the last one a query is run to fetch the new value of the version field. The other one is tested with NULL, and throws an optimistic locking exception.

PDOException: SQLSTATE[42000]: [Microsoft][SQL Server Native Client 10.0][SQL Server]Incorrect syntax near the keyword 'DISTINCT'. (uncaught exception)

This issue is created automatically through a Github pull request on behalf of brikou:

Url: https://github.com/doctrine/doctrine2/pull/324

Message:

This issue is created automatically through a Github pull request on behalf of guilhermeblanco:

Url: https://github.com/doctrine/doctrine2/pull/319

Message:

This issue is created automatically through a Github pull request on behalf of chEbba:

Url: https://github.com/doctrine/doctrine2/pull/584

Message:

1. Fix problem with different comparisons on the same field in QueryExpressonVisitor (now index value is added).
2. Add criteria field aliasing. Usually oject criteria has "filed = value" notation while DQL has "alias.field = value".
First level fields are added with alias, second+ level fields (object.field, parent.object.field) are truncated to the second level (object.field) without alias. Alias map can be implemented in future.

When using a mapping Type that declares convertToDatabaseValue, the method is not always called in queries.

Example:

SELECT ... WHERE entity.field = ?1

(with entity.field being of custom type 'the_mapping_type')

Type::convertToDatabaseValue() is correctly called when using:

$query->setParameter('1', 'foo', 'the_mapping_type');

But it is not called when using:

$query->setParameter('1', 'foo');

which gives a query that returns invalid results.

Like other mapping types in this situation, there is no reason the type is not inferred automatically from the field.

I have written a failing test case in Doctrine\Tests\ORM\Functional\TypeValueSqlTest:

    public function testQueryParameterWithoutType()
    {
        $entity = new CustomTypeUpperCase();
        $entity->lowerCaseString = 'foo';

        $this->_em->persist($entity);
        $this->_em->flush();

        $id = $entity->id;

        $this->_em->clear();

        $query = $this->_em->createQuery('SELECT c.id from Doctrine\Tests\Models\CustomType\CustomTypeUpperCase c where c.lowerCaseString = ?1');
        $query->setParameter('1', 'foo');

        $result = $query->getResult();

        $this->assertCount(1, $result);
        $this->assertEquals($id, $result[0]['id']);
    }

This issue is created automatically through a Github pull request on behalf of alexcarol:

Url: https://github.com/doctrine/doctrine2/pull/568

Message:

Changed generateEntityStubMethod so that variable names in add or remove methods are singular too

Edited tests for EntityGenerator so that variable names are checked too

I want to have a column on a table that by default it takes the value from a sequence.

I've tried to do something like this:
/**

• @ORM\Column(type="integer", unique="true")
• @ORM\GeneratedValue(strategy="SEQUENCE")
• @ORM\SequenceGenerator(sequenceName="seq_categorias", initialValue=1, allocationSize=100)
  */
  protected $id_categoria;

But this doesn't work, it creates de sequence but not the link between the table column and the sequence. Is there any possibility to do something like this? Or any autoincrement default value instead?

Thanks!

I had built and used the following for doctrine 1: http://web.archive.org/web/20110705035547/http://www.doctrine-project.org/projects/orm/1.2/docs/cookbook/record-based-retrieval-security-template/en#record-based-retrieval-security-template

I'd like to build something similar for D2 based projects.

ocramius in IRC suggested a bug report/Improvement request. Figured that perhaps a custom event "dql_parse" or "ast_render" passing the AST or Query as a parameter.

I'm under a tight timeline and am willing to pay for aid/feature implementation.

Is this normal that when i call "$changeset = $unitOfWork->getEntityChangeSet($myObject);", it only return changes of root Object, all changes in sub collection (OneToMany) are less (not merging in the changeset) ?

Is there an issue for that?

@NamedNativeQueries is a useful thing, but I have found some problems during my using.
1、Normal

 /**
 * @NamedNativeQueries({
 *      @NamedNativeQuery(
 *          name            = "fetchMultipleJoinsEntityResults",
 *          resultSetMapping= "mappingMultipleJoinsEntityResults",
 *          query            = "SELECT * FROM test "
 *      )
 * })
 */

2、Error，cannot connect to the server

 /**
 * @NamedNativeQueries({
 *      @NamedNativeQuery(
 *          name            = "fetchMultipleJoinsEntityResults",
 *          resultSetMapping= "mappingMultipleJoinsEntityResults",
 *          query            = "SELECT * 
            FROM test "
 *      )
 * })
 */

3、Cannot use alias.The same problem as the second one.

.......
 query            = "SELECT a as test FROM test "

Hibernate has a second level cache feature that is much more advanced than Doctrines result cache.

With NoSQL in-memory databases such as Riak or MongoDB we could need a much more powerful cache to make Doctrine faaaaaasst. This ticket tracks the design and implementation of that feature.

Doctrine\ORM\Query should not be directly extendable but it would be nice to decorate query objects and add additional methods. Use cases are e.g. doctrine-fun (see https://github.com/lstrojny/doctrine-fun/blob/master/src/Doctrine/Fun/Query.php) or even cases where users want to add domain specific methods. As Doctrine\ORM\Query is final it is not so easy to decorate correctly. I would propose:

• Add a new interfaces: Doctrine\ORM\QueryInterface that provides a contract for all methods Doctrine\ORM\Query provides
• Add a decorator base class Doctrine\ORM\QueryDecorator as an extension point
• Some for NativeQuery and QueryBuilder

There are currently some drawbacks with identifier hashing:

• They only work on one level for derived keys
• The code is suspect to high performance requirements
• Composite Keys might be suspect to weird bugs if they contain spaces.

There is a PR by goetas (https://github.com/doctrine/doctrine2/pull/232) that solves some issues, however adds a performance hit.

We should move the conditional logic of this code out and use a strategy pattern to improve both performance and robustness of this code.