It has been suggested to remove PostgreSQL support from Drupal 7 Core. If you don't want that to happen, help us in the surge for PostgreSQL:
- PostgreSQL surge #1: make simpletest works again
- PostgreSQL surge #2: add automated testing on PostgreSQL slaves
- PostgreSQL surge #3: make all tests pass on PostgreSQL
- PostgreSQL surge #5: column type of int_unsigned causing pdoexception
- PostgreSQL surge #6: do_search() fails hard on Postgres
And keep in mind other PostgreSQL-specific issues:
- Empty BLOB fields fail. This is a bug in PDO that we need to work around. External reference from PHP.
- Reserved word-safe schema operations
- Optimize merge queries.