[DBAL-492] Fix bug in foreign key comparision when inside a subschema.
Merge branch 'DBAL-492' into 2.3
Fixing issue when number of positional parameters != number of given types
Merge branch 'DBAL-488' into 2.3
fix named_token

regex pattern does not support sql casting using :: operator for example select mydate::date from mytable;
add test for ticket gh-259

fix :: operator in sql parser
Merge branch 'DBAL-429' into 2.3
[DBAL-54] Cannot drop schema using IDENTITY strategy in PostgreSQL

DBAL-54 was fixed in commit 3d55dc8eec235c09d64b061456295a1951299496 by
changing SQL queries order. However it was later reintroduced.

This patch uses a different, more future-proof way, approach by using
DROP SEQUENCE ... CASCADE syntax, and thus does not depend on queries order.
Merge branch 'DBAL-54' into 2.3
Revert "Fixing issue when number of positional parameters != number of given types"

This reverts commit d70321990d2146e7f615ea1eef2e5b9e18494e0c.
[DBAL-487] Map integer unsigned to Doctrine integer.
Merge branch 'DBAL-487' into 2.3
[DDC-2110] fixed problem with existing table columns (postgresql)
removed unnecessary select
new tests for PostgreSqlPlatform

- added test for getListTableColumnsSQL
- added test for getListTableForeignKeysSQL
- added test for getListTableIndexesSQL
[DBAL-510] Fix tests (remove SQL ones, add functional test.
Merge branch 'DBAL-510' into 2.3
fixed bug on schema comparitor, prevent multiple rename candidates for the same original field
Update syntax on comparitor bug
Add compare change columns test for multiple new columns rename