cx_oracle + two phase

[Mike Bayer]

apparently two phase "works", but we aren't doing it right, as prepare() returns a boolean which we need to honor. the attached patch begins to address this, however we'd need to test fully to see what we do with subsequent transactions, rollbacks, etc.

[Mike Bayer]

we will put this patch in, but for now we may need special tests that are specific to test_oracle, as the generic "two phase tranasction" tests aren't working with cx_oracle. The attached test suite illustrates cx_oracle's failing to return the connection to a standard DBAPI usage pattern after a two phase.

[Mike Bayer]

see also #736 for related notes.

[Mike Bayer]

well I put out the request for help which can be seen at: http://sourceforge.net/mailarchive/forum.php?thread_name=377D4733-B804-4EEB-B638-55A8EB5EF0ED%40zzzcomputing.com&forum_name=cx-oracle-users . I'm not optimistic about a response so the changesets here include detail on the issue and how to work around it.

af1a545bdd9d5210981a07f74e62f5d343b14537 (0.8) 0b0415f49b25a0ceba67898af49d4c0dda695b80 (0.7)

[Mike Bayer]

Removing milestone: 0.8.0final (automated comment)