X@s=dZddlZejdZddZddZdS)z0 Extracts the version of the PostgreSQL server. Nz\S+ (\d+)\.(\d+)\.?(\d+)?c Cstj|j\}}}y*t|dt|dt|SWn4ttfk r~t|dt|dSYnXdS)z;Internal parsing method. Factored out for testing purposes.i'dN) VERSION_REsearchgroupsint ValueError TypeError)textmajorZmajor2minorr S/home/ubuntu/projects/ifolica/build/django/django/db/backends/postgresql/version.py_parse_versions *rc CsPt|dr|jS|j(}|jdt|jdSWdQXdS)a\ Returns an integer representing the major, minor and revision number of the server. Format is the one used for the return value of libpq PQServerVersion()/``server_version`` connection attribute (available in newer psycopg2 versions.) For example, 90304 for 9.3.4. The last two digits will be 00 in the case of releases (e.g., 90400 for 'PostgreSQL 9.4') or in the case of beta and prereleases (e.g. 90100 for 'PostgreSQL 9.1beta2'). PQServerVersion()/``server_version`` doesn't execute a query so try that first, then fallback to a ``SELECT version()`` query. server_versionzSELECT version()rN)hasattrrcursorexecuterZfetchone) connectionrr r r get_versions  r)__doc__recompilerrrr r r r s