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| author | Mike Bayer <mike_mp@zzzcomputing.com> | 2020-08-07 14:51:33 -0400 |
|---|---|---|
| committer | Mike Bayer <mike_mp@zzzcomputing.com> | 2020-08-07 18:01:49 -0400 |
| commit | 302e8dee82718df6c3a46de4c5283bdae51a650a (patch) | |
| tree | 0df6953aba01b6ff72a7094ff0887d11c4a700f0 /lib/sqlalchemy/engine/default.py | |
| parent | 40d64f3a525b14272b7354c72d7f84f6b00796f9 (diff) | |
| download | sqlalchemy-302e8dee82718df6c3a46de4c5283bdae51a650a.tar.gz | |
Don't link on_connect to first_connect event handler
Adjusted the dialect initialization process such that the
:meth:`_engine.Dialect.on_connect` is not called a second time on the first
connection. The hook is called first, then the
:meth:`_engine.Dialect.initialize` is called if that connection is the
first for that dialect, then no more events are called. This eliminates
the two calls to the "on_connect" function which can produce very difficult
debugging situations.
Fixes: #5497
Change-Id: Icefc2e884e30ee7b4ac84b99dc54bf992a6085e3
Diffstat (limited to 'lib/sqlalchemy/engine/default.py')
| -rw-r--r-- | lib/sqlalchemy/engine/default.py | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/sqlalchemy/engine/default.py b/lib/sqlalchemy/engine/default.py index 8d3c5de15..c76f820f9 100644 --- a/lib/sqlalchemy/engine/default.py +++ b/lib/sqlalchemy/engine/default.py @@ -120,6 +120,8 @@ class DefaultDialect(interfaces.Dialect): max_identifier_length = 9999 _user_defined_max_identifier_length = None + isolation_level = None + # length at which to truncate # the name of an index. # Usually None to indicate |