1.1.13

Released: August 3, 2017

oracle

• [oracle] [bug] [performance] [py2k] Fixed performance regression caused by the fix for #3937 where
  cx_Oracle as of version 5.3 dropped the .UNICODE symbol from its
  namespace, which was interpreted as cx_Oracle's "WITH_UNICODE" mode being
  turned on unconditionally, which invokes functions on the SQLAlchemy
  side which convert all strings to unicode unconditionally and causing
  a performance impact. In fact, per cx_Oracle's author the
  "WITH_UNICODE" mode has been removed entirely as of 5.1, so the expensive unicode
  conversion functions are no longer necessary and are disabled if
  cx_Oracle 5.1 or greater is detected under Python 2. The warning against
  "WITH_UNICODE" mode that was removed under #3937 is also restored.

  This change is also backported to: 1.0.19

  References: #4035