1.2.2

Released: January 24, 2018

• [bug] [mssql] Added ODBC error code 10054 to the list of error
  codes that count as a disconnect for ODBC / MSSQL server.

  References: #4164

• [bug] [orm] Fixed 1.2 regression regarding new bulk_replace event
  where a backref would fail to remove an object from the
  previous owner when a bulk-assignment assigned the
  object to a new owner.

  References: #4171

• [bug] [oracle] The cx_Oracle dialect now calls setinputsizes() with cx_Oracle.NCHAR
  unconditionally when the NVARCHAR2 datatype, in SQLAlchemy corresponding
  to sqltypes.Unicode(), is in use. Per cx_Oracle's author this allows
  the correct conversions to occur within the Oracle client regardless
  of the setting for NLS_NCHAR_CHARACTERSET.

  References: #4163

• [bug] [mysql] Added more MySQL 8.0 reserved words to the MySQL dialect
  for quoting purposes. Pull request courtesy
  Riccardo Magliocchetti.