[2.8] [Bridge] [Doctrine] made session table columns configurable through constructor method.

[hhamon]

Q	A
Bug fix?	no
New feature?	yes
BC breaks?	no
Deprecations?	no
Tests pass?	yes
Fixed tickets	~
License	MIT
Doc PR	~

[hhamon]

This PR replaces #13136

[hhamon]

ping @Tobion @stof is it ok now?

[fabpot]

Why would you want to make them configurable? What's the use case?

[Tobion]

I don't think we should do this. Then we also have the problem that people can use reserved words which would need to be "escaped". See #11131

[Tobion]

Also implementation wise, it would be better to accept a Doctrine\DBAL\Schema\Schema or Doctrine\DBAL\Schema\Schema\Table as argument for DbalSessionHandler. That would be cleaner and one only needs to configure the names in one place and not in two classes.

This way it would actually be possible to fix #11131 by using AbstractAsset::getQuotedName($connection->getDatabasePlatform) for the column name retrieval. But this should not be done in the constructor, but in open() to still be lazy-connecting as getDatabasePlatform might create the connection as we know.

[fabpot]

@hhamon Closing as I agree with @Tobion.