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| author | Mike Bayer <mike_mp@zzzcomputing.com> | 2016-06-10 17:24:36 -0400 |
|---|---|---|
| committer | Mike Bayer <mike_mp@zzzcomputing.com> | 2016-06-10 17:24:36 -0400 |
| commit | 7189d0bc82598c2d6dcbb55b054837416db2ee7d (patch) | |
| tree | ab9a7536f194670323b14983300ce339e64fe970 /lib/sqlalchemy/sql/selectable.py | |
| parent | 31a0da32a8af2503c6b94123a0e869816d83c707 (diff) | |
| download | sqlalchemy-7189d0bc82598c2d6dcbb55b054837416db2ee7d.tar.gz | |
Ensure CTE internals are handled during clone
The CTE construct was missing a _copy_internals() method
which would handle CTE-specific structures including _cte_alias,
_restates during a clone operation.
Change-Id: I9aeac9cd24d8f7ae6b70e52650d61f7c96cb6d7e
Fixes: #3722
Diffstat (limited to 'lib/sqlalchemy/sql/selectable.py')
| -rw-r--r-- | lib/sqlalchemy/sql/selectable.py | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/lib/sqlalchemy/sql/selectable.py b/lib/sqlalchemy/sql/selectable.py index 6ef327b95..f75613e35 100644 --- a/lib/sqlalchemy/sql/selectable.py +++ b/lib/sqlalchemy/sql/selectable.py @@ -1269,6 +1269,14 @@ class CTE(Generative, HasSuffixes, Alias): self._suffixes = _suffixes super(CTE, self).__init__(selectable, name=name) + def _copy_internals(self, clone=_clone, **kw): + super(CTE, self)._copy_internals(clone, **kw) + if self._cte_alias is not None: + self._cte_alias = self + self._restates = frozenset([ + clone(elem, **kw) for elem in self._restates + ]) + @util.dependencies("sqlalchemy.sql.dml") def _populate_column_collection(self, dml): if isinstance(self.element, dml.UpdateBase): |