diff options
Diffstat (limited to 'lib/sqlalchemy/sql/selectable.py')
| -rw-r--r-- | lib/sqlalchemy/sql/selectable.py | 99 |
1 files changed, 47 insertions, 52 deletions
diff --git a/lib/sqlalchemy/sql/selectable.py b/lib/sqlalchemy/sql/selectable.py index 1f1800514..beba1d242 100644 --- a/lib/sqlalchemy/sql/selectable.py +++ b/lib/sqlalchemy/sql/selectable.py @@ -10,50 +10,45 @@ SQL tables and derived rowsets. """ -from .elements import ( - ClauseElement, - TextClause, - ClauseList, - and_, - Grouping, - UnaryExpression, - literal_column, - BindParameter, -) -from .elements import ( - _clone, - _literal_as_text, - _interpret_as_column_or_from, - _expand_cloned, - _select_iterables, - _anonymous_label, - _clause_element_as_expr, - _cloned_intersection, - _cloned_difference, - True_, - _literal_as_label_reference, - _literal_and_labels_as_label_reference, -) -from .base import ( - Immutable, - Executable, - _generative, - ColumnCollection, - ColumnSet, - _from_objects, - Generative, -) -from . import type_api -from .. import inspection -from .. import util -from .. import exc -from operator import attrgetter -from . import operators -import operator import collections -from .annotation import Annotated import itertools +import operator +from operator import attrgetter + from sqlalchemy.sql.visitors import Visitable +from . import operators +from . import type_api +from .annotation import Annotated +from .base import _from_objects +from .base import _generative +from .base import ColumnCollection +from .base import ColumnSet +from .base import Executable +from .base import Generative +from .base import Immutable +from .elements import _anonymous_label +from .elements import _clause_element_as_expr +from .elements import _clone +from .elements import _cloned_difference +from .elements import _cloned_intersection +from .elements import _expand_cloned +from .elements import _interpret_as_column_or_from +from .elements import _literal_and_labels_as_label_reference +from .elements import _literal_as_label_reference +from .elements import _literal_as_text +from .elements import _select_iterables +from .elements import and_ +from .elements import BindParameter +from .elements import ClauseElement +from .elements import ClauseList +from .elements import Grouping +from .elements import literal_column +from .elements import TextClause +from .elements import True_ +from .elements import UnaryExpression +from .. import exc +from .. import inspection +from .. import util def _interpret_as_from(element): @@ -1013,15 +1008,15 @@ class Join(FromClause): to join, or no way to join, an error is raised. :param ignore_nonexistent_tables: Deprecated - this - flag is no longer used. Only resolution errors regarding - the two given tables are propagated. + flag is no longer used. Only resolution errors regarding + the two given tables are propagated. :param a_subset: An optional expression that is a sub-component - of ``a``. An attempt will be made to join to just this sub-component - first before looking at the full ``a`` construct, and if found - will be successful even if there are other ways to join to ``a``. - This allows the "right side" of a join to be passed thereby - providing a "natural join". + of ``a``. An attempt will be made to join to just this sub-component + first before looking at the full ``a`` construct, and if found + will be successful even if there are other ways to join to ``a``. + This allows the "right side" of a join to be passed thereby + providing a "natural join". """ constraints = cls._joincond_scan_left_right( @@ -1441,8 +1436,8 @@ class TableSample(Alias): """Represent a TABLESAMPLE clause. This object is constructed from the :func:`~.expression.tablesample` module - level function as well as the :meth:`.FromClause.tablesample` method available - on all :class:`.FromClause` subclasses. + level function as well as the :meth:`.FromClause.tablesample` method + available on all :class:`.FromClause` subclasses. .. versionadded:: 1.1 @@ -2813,8 +2808,8 @@ class Select(HasPrefixes, HasSuffixes, GenerativeSelect): a numerical value which usually renders as a ``LIMIT`` expression in the resulting select. Backends that don't support ``LIMIT`` will attempt to provide similar - functionality. This parameter is typically specified more naturally - using the :meth:`.Select.limit` method on an existing + functionality. This parameter is typically specified more + naturally using the :meth:`.Select.limit` method on an existing :class:`.Select`. .. seealso:: |