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Diffstat (limited to 'lib/sqlalchemy/dialects/postgresql/json.py')
| -rw-r--r-- | lib/sqlalchemy/dialects/postgresql/json.py | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/lib/sqlalchemy/dialects/postgresql/json.py b/lib/sqlalchemy/dialects/postgresql/json.py index b8e3ac23d..ef48f3d86 100644 --- a/lib/sqlalchemy/dialects/postgresql/json.py +++ b/lib/sqlalchemy/dialects/postgresql/json.py @@ -123,11 +123,17 @@ class JSON(sqltypes.JSON): data_table.c.data['some key'].astext == 'some value' + Note that equivalent functionality is available via the + :attr:`.JSON.Comparator.as_string` accessor. + * Index operations with CAST (equivalent to ``CAST(col ->> ['some key'] AS <type>)``):: data_table.c.data['some key'].astext.cast(Integer) == 5 + Note that equivalent functionality is available via the + :attr:`.JSON.Comparator.as_integer` and similar accessors. + * Path index operations (the ``#>`` operator):: data_table.c.data[('key_1', 'key_2', 5, ..., 'key_n')] @@ -214,7 +220,6 @@ class JSON(sqltypes.JSON): :meth:`.ColumnElement.cast` """ - if isinstance(self.expr.right.type, sqltypes.JSON.JSONPathType): return self.expr.left.operate( JSONPATH_ASTEXT, |