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-rw-r--r--lib/sqlalchemy/engine/default.py9
1 files changed, 7 insertions, 2 deletions
diff --git a/lib/sqlalchemy/engine/default.py b/lib/sqlalchemy/engine/default.py
index 37afa84ec..a7f6dc4fa 100644
--- a/lib/sqlalchemy/engine/default.py
+++ b/lib/sqlalchemy/engine/default.py
@@ -101,10 +101,15 @@ class DefaultDialect(base.Dialect):
#self.returns_unicode_strings = True
def initialize(self, connection):
- if hasattr(self, '_get_server_version_info'):
+ try:
self.server_version_info = self._get_server_version_info(connection)
- if hasattr(self, '_get_default_schema_name'):
+ except NotImplementedError:
+ self.server_version_info = None
+ try:
self.default_schema_name = self._get_default_schema_name(connection)
+ except NotImplementedError:
+ self.default_schema_name = None
+
# Py2K
self.returns_unicode_strings = self._check_unicode_returns(connection)
# end Py2K