Initial Fork from https://bitbucket.org/raphaelmutschler/calibreserver/

lib/sqlalchemy/dialects/postgresql/zxjdbc.py

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+# postgresql/zxjdbc.py
+# Copyright (C) 2005-2013 the SQLAlchemy authors and contributors <see AUTHORS file>
+#
+# This module is part of SQLAlchemy and is released under
+# the MIT License: http://www.opensource.org/licenses/mit-license.php
+
+"""
+.. dialect:: postgresql+zxjdbc
+    :name: zxJDBC for Jython
+    :dbapi: zxjdbc
+    :connectstring: postgresql+zxjdbc://scott:tiger@localhost/db
+    :driverurl: http://jdbc.postgresql.org/
+
+
+"""
+from ...connectors.zxJDBC import ZxJDBCConnector
+from .base import PGDialect, PGExecutionContext
+
+
+class PGExecutionContext_zxjdbc(PGExecutionContext):
+
+    def create_cursor(self):
+        cursor = self._dbapi_connection.cursor()
+        cursor.datahandler = self.dialect.DataHandler(cursor.datahandler)
+        return cursor
+
+
+class PGDialect_zxjdbc(ZxJDBCConnector, PGDialect):
+    jdbc_db_name = 'postgresql'
+    jdbc_driver_name = 'org.postgresql.Driver'
+
+    execution_ctx_cls = PGExecutionContext_zxjdbc
+
+    supports_native_decimal = True
+
+    def __init__(self, *args, **kwargs):
+        super(PGDialect_zxjdbc, self).__init__(*args, **kwargs)
+        from com.ziclix.python.sql.handler import PostgresqlDataHandler
+        self.DataHandler = PostgresqlDataHandler
+
+    def _get_server_version_info(self, connection):
+        parts = connection.connection.dbversion.split('.')
+        return tuple(int(x) for x in parts)
+
+dialect = PGDialect_zxjdbc