Chris Bandy

> In order to get unicode to work properly with an nvarchar2 using pythons cx_Oracle, I needed to set `NLS_LANG=American_America.UTF8`. I dont know for sure that it is a cx_Oracle...

I'm uncertain about releasing caching without #19.

> I'm uncertain about releasing caching without #19. I take it back. Checksums are _not_ necessary to safely cache.

Cache corruption. Any pull request (from anyone) can write anything it wants to the cache.

> According to the Travis caching docs, a pull request does not seem to threaten the cache Oh, excellent! I agree. > Do you have other experiences? I do not....

PostgreSQL has supported enums since version 8.3: http://www.postgresql.org/docs/8.3/static/datatype-enum.html

The way MySQL and PostgreSQL define enums is very different. I suppose a `PostgreSQL_DDL_Create_Type` is what you'd like?

To define a column as an array, it is sufficient to pass `'integer[]'` to `DDL_Column::type()`. I suppose you'd like an object that converts a PHP array to the PostgreSQL array...

#2154 is related in that it is about dual-stack client connections.

Related: #649, #728