diff options
Diffstat (limited to 'lib/sqlalchemy/schema.py')
| -rw-r--r-- | lib/sqlalchemy/schema.py | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/lib/sqlalchemy/schema.py b/lib/sqlalchemy/schema.py index c96d8adf4..da534a2fa 100644 --- a/lib/sqlalchemy/schema.py +++ b/lib/sqlalchemy/schema.py @@ -1443,12 +1443,13 @@ class MetaData(SchemaItem): """A collection of Tables and their associated schema constructs. Holds a collection of Tables and an optional binding to an ``Engine`` or - ``Connection``. If bound, the :class:`~sqlalchemy.schema.Table` objects in the - collection and their columns may participate in implicit SQL execution. + ``Connection``. If bound, the :class:`~sqlalchemy.schema.Table` objects + in the collection and their columns may participate in implicit SQL + execution. - The `Table` objects themselves are stored in the `metadata.tables` + The `Table` objects themselves are stored in the `metadata.tables` dictionary. - + The ``bind`` property may be assigned to dynamically. A common pattern is to start unbound and then bind later when an engine is available:: @@ -1461,6 +1462,10 @@ class MetaData(SchemaItem): MetaData is a thread-safe object after tables have been explicitly defined or loaded via reflection. + + .. index:: + single: thread safety; MetaData + """ __visit_name__ = 'metadata' |