1 """

     2 Extracts the version of the PostgreSQL server.

     3 """

     4 

     5 import re

     6 

     7 VERSION_RE = re.compile(r'PostgreSQL (\d+)\.(\d+)\.')

     8 

     9 def get_version(cursor):

    10     """

    11     Returns a tuple representing the major and minor version number of the

    12     server. For example, (7, 4) or (8, 3).

    13     """

    14     cursor.execute("SELECT version()")

    15     version = cursor.fetchone()[0]

    16     major, minor = VERSION_RE.search(version).groups()

    17     return int(major), int(minor)

    18