[DDC-1657] Prevent autoincrement sequences from creating DROP SEQUENCE statements because of old/new schema missmatch.

SQL Server doModifyLimitQuery() quoting of doctrine_rownum causes error

interface compatibility

Getters for AbstractAsset$_quoted and ForeignKeyConstraint$_options

Renamed AbstractAsset#isQuoted to #isIdentifierQuoted. Added new public method isQuoted that returns AbstractAsset

Add option to keep the slave in master/slave setups. You can call $conn->connectTo("slave") to get back to the slave connection

Default fetch mode for Connection and fixing it for Statement classes

[DBAL-178] Fixed an undescriptive error message and a problem when using custom types and their reverse engineering from the database. Allows Type#getMappedDatabaseTypes() to be implemented in custom types, mapping to vendor database types during reverse engineering.

Sharding

[SQLITE] Remove primary key auto quote

Should be updating $this->_keywords.

Prevent repeat instantiation of reserved keywords class