v1.2.3

• Fix type code contract.
  PEP 249 - Type Objects and Constructors
  https://www.python.org/dev/peps/pep-0249/#type-objects-and-constructors
  Thanks @memeplex. (/issues/32)

v1.2.2

• Add test of get_columns method retry condition.
• Remove duplicate null or empty check.
• Fix install requires.
  • futures;python_version<="2.7"

v1.2.1

• Fix retry condition of get_columns method.
• Add more types to type conversion.
  • FLOAT
  • REAL
  • CHAR

v1.2.0

• Implement AsynchronousCursor.
• Add retry processing to get_columns method of SQLAlchemy.
• Add more query execution information to the cursor object.
  • Query
  • State
  • StateChangeReason

v1.1.0

• Change the behavior of the default formatter.
  Escaping is required only for the query with parameter containing % character.

v1.0.3

• Add support for formatting long type.

v1.0.2

• Add output location.
• Fix retry predicate condition.

v1.0.1

• Fix cursor not to skip the first row when listing partitions.
• Add query execution statistics.
• Wrap all API exceptions in DB API exceptions.
• Implement API call retry processing.
• Drop support for PY26.

v1.0.0

init commit