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Diffstat (limited to 'lib/sqlalchemy/orm/base.py')
| -rw-r--r-- | lib/sqlalchemy/orm/base.py | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/sqlalchemy/orm/base.py b/lib/sqlalchemy/orm/base.py index 2932f1bb9..524407265 100644 --- a/lib/sqlalchemy/orm/base.py +++ b/lib/sqlalchemy/orm/base.py @@ -124,6 +124,12 @@ NO_RAISE = util.symbol( canonical=128, ) +DEFERRED_HISTORY_LOAD = util.symbol( + "DEFERRED_HISTORY_LOAD", + """indicates special load of the previous value of an attribute""", + canonical=256, +) + # pre-packaged sets of flags used as inputs PASSIVE_OFF = util.symbol( "PASSIVE_OFF", |