I take the guess an use the information_schema. It makes it more clear and simple

correct table identifier

missing table identifier added

If the database have different schemes, with objects, that the actual logged in user has no rights, the existing statements will collect all objects (sequences and tables) and try to read them in later steps. This will throws exceptions. The reason for that is the fact, that both procedures getListSequencesList() and getListTablesSQL() will receive all known database objects from postgres catalogs. But the actual logged-in user, maby has no read permissions to object inside other scheme-owner. The additional parts inside both sql-statements will reduce the result to only objects that the user are able to see.

Support for Partial Indexes was available in Doctrine 1 following
http://www.doctrine-project.org/jira/browse/DC-82. This commit
reintroduce support for Doctrine 2. We use the same syntax with an
optionnal "where" attribute for Index and UniqueConstraint.

When changing the length of a field, the column name needs to be escaped
properly.

updated convert function  to include uppercased values

fixed parameter order in conditions

Changes after Ocramius comments

fixed bug when $item was set as bool true value
added 'off' literal

added postgresql literals to Boolean conversion