sqlalchemy.sql.elements.RollbackToSavepointClause

class documentation

class RollbackToSavepointClause(_IdentifiedClause): (source)

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Undocumented

Class Variable __visit_name__ Undocumented
Class Variable inherit_cache Indicate if this :class:`.HasCacheKey` instance should make use of the cache key generation scheme used by its immediate superclass.

Inherited from _IdentifiedClause:

Method __init__ Undocumented
Instance Variable ident Undocumented

Inherited from Executable (via _IdentifiedClause):

Method execution_options Set non-SQL options for the statement which take effect during execution.
Method get_execution_options Get the non-SQL options which will take effect during execution.
Method options Apply options to this statement.
Class Variable is_delete Undocumented
Class Variable is_dml Undocumented
Class Variable is_insert Undocumented
Class Variable is_select Undocumented
Class Variable is_text Undocumented
Class Variable is_update Undocumented
Class Variable supports_execution Undocumented
Method _add_context_option Add a context option to this statement.
Method _compile_w_cache Undocumented
Method _execute_on_connection Undocumented
Method _execute_on_scalar Undocumented
Method _set_compile_options Assign the compile options to a new value.
Method _update_compile_options update the _compile_options with new keys.
Class Variable _executable_traverse_internals Undocumented
Class Variable _is_default_generator Undocumented
Class Variable _with_context_options Undocumented
Class Variable _with_options Undocumented
Instance Variable _compile_options Undocumented
Instance Variable _execution_options Undocumented
Property _all_selected_columns Undocumented
Property _effective_plugin_target Undocumented

Inherited from StatementRole (via _IdentifiedClause, Executable):

Class Variable __slots__ Undocumented
Class Variable _role_name Undocumented
Property _propagate_attrs Undocumented

Inherited from SQLRole (via _IdentifiedClause, Executable, StatementRole):

Class Variable allows_lambda Undocumented
Class Variable uses_inspection Undocumented

Inherited from ClauseElement (via _IdentifiedClause, Executable, StatementRole, SQLRole):

Method __bool__ Undocumented
Method __getstate__ Undocumented
Method __invert__ Undocumented
Method __repr__ Undocumented
Method compare Compare this :class:`_expression.ClauseElement` to the given :class:`_expression.ClauseElement`.
Method get_children Return immediate child :class:`.visitors.HasTraverseInternals` elements of this :class:`.visitors.HasTraverseInternals`.
Method params Return a copy with :func:`_expression.bindparam` elements replaced.
Method self_group Apply a 'grouping' to this :class:`_expression.ClauseElement`.
Method unique_params Return a copy with :func:`_expression.bindparam` elements replaced.
Class Variable is_clause_element Undocumented
Class Variable is_selectable Undocumented
Class Variable negation_clause Undocumented
Property description Undocumented
Property entity_namespace Undocumented
Method _clone Create a shallow copy of this ClauseElement.
Method _cloned_set Return the set consisting all cloned ancestors of this ClauseElement.
Method _negate Undocumented
Method _negate_in_binary a hook to allow the right side of a binary expression to respond to a negation of the binary expression.
Method _replace_params Undocumented
Method _set_propagate_attrs Undocumented
Method _ungroup Return this :class:`_expression.ClauseElement` without any groupings.
Method _with_binary_element_type in the context of binary expression, convert the type of this object to the one given.
Class Variable _cache_key_traversal Undocumented
Class Variable _gen_static_annotations_cache_key Undocumented
Class Variable _is_bind_parameter Undocumented
Class Variable _is_clause_list Undocumented
Class Variable _is_clone_of Undocumented
Class Variable _is_column_element Undocumented
Class Variable _is_from_clause Undocumented
Class Variable _is_from_container Undocumented
Class Variable _is_immutable Undocumented
Class Variable _is_keyed_column_element Undocumented
Class Variable _is_lambda_element Undocumented
Class Variable _is_returns_rows Undocumented
Class Variable _is_select_base Undocumented
Class Variable _is_select_container Undocumented
Class Variable _is_select_statement Undocumented
Class Variable _is_singleton_constant Undocumented
Class Variable _is_star Undocumented
Class Variable _is_table Undocumented
Class Variable _is_text_clause Undocumented
Class Variable _is_textual Undocumented
Property _constructor return the 'constructor' for this ClauseElement.
Property _from_objects Undocumented
Property _order_by_label_element Undocumented

Inherited from SupportsWrappingAnnotations (via _IdentifiedClause, Executable, StatementRole, SQLRole, ClauseElement):

Method _annotate return a copy of this ClauseElement with annotations updated by the given dictionary.
Method _deannotate return a copy of this :class:`_expression.ClauseElement` with annotations removed.
Method _with_annotations return a copy of this ClauseElement with annotations replaced by the given dictionary.

Inherited from SupportsAnnotations (via _IdentifiedClause, Executable, StatementRole, SQLRole, ClauseElement, SupportsWrappingAnnotations):

Class Variable proxy_set Undocumented
Method _gen_annotations_cache_key Undocumented
Property _annotations_cache_key Undocumented

Inherited from MemoizedHasCacheKey (via _IdentifiedClause, Executable, StatementRole, SQLRole, ClauseElement, SupportsWrappingAnnotations, SupportsAnnotations):

Method _generate_cache_key return a cache key.

Inherited from HasCacheKey (via _IdentifiedClause, Executable, StatementRole, SQLRole, ClauseElement, SupportsWrappingAnnotations, SupportsAnnotations, MemoizedHasCacheKey):

Class Method _generate_cache_attrs generate cache key dispatcher for a new class.
Class Method _generate_cache_key_for_object Undocumented
Method _gen_cache_key return an optional cache key.
Class Variable _generated_cache_key_traversal Undocumented
Class Variable _hierarchy_supports_caching private attribute which may be set to False to prevent the inherit_cache warning from being emitted for a hierarchy of subclasses.
Class Variable _is_has_cache_key Undocumented

Inherited from HasCopyInternals (via _IdentifiedClause, Executable, StatementRole, SQLRole, ClauseElement, SupportsWrappingAnnotations, SupportsAnnotations, MemoizedHasCacheKey, HasCacheKey):

Method _copy_internals Reassign internal elements to be clones of themselves.

Inherited from HasTraverseInternals (via _IdentifiedClause, Executable, StatementRole, SQLRole, ClauseElement, SupportsWrappingAnnotations, SupportsAnnotations, MemoizedHasCacheKey, HasCacheKey, HasCopyInternals, ExternallyTraversible):

Class Variable _traverse_internals Undocumented

Inherited from CompilerElement (via _IdentifiedClause, Executable, StatementRole, SQLRole, ClauseElement, SupportsWrappingAnnotations, SupportsAnnotations, MemoizedHasCacheKey, HasCacheKey, HasCopyInternals, ExternallyTraversible, HasTraverseInternals):

Method __str__ Undocumented
Method compile Compile this SQL expression.
Class Variable stringify_dialect Undocumented
Method _compiler Return a compiler appropriate for this ClauseElement, given a Dialect.

Inherited from Visitable (via _IdentifiedClause, Executable, StatementRole, SQLRole, ClauseElement, SupportsWrappingAnnotations, SupportsAnnotations, MemoizedHasCacheKey, HasCacheKey, HasCopyInternals, ExternallyTraversible, HasTraverseInternals, CompilerElement):

Method __class_getitem__ Undocumented
Method __init_subclass__ Undocumented
Class Method _generate_compiler_dispatch Undocumented
Method _compiler_dispatch Undocumented
Class Variable _original_compiler_dispatch Undocumented
__visit_name__: str = (source)
overrides sqlalchemy.sql.elements._IdentifiedClause.__visit_name__

Undocumented

inherit_cache: bool = (source)
overrides sqlalchemy.sql.cache_key.HasCacheKey.inherit_cache

Indicate if this :class:`.HasCacheKey` instance should make use of the cache key generation scheme used by its immediate superclass. The attribute defaults to ``None``, which indicates that a construct has not yet taken into account whether or not its appropriate for it to participate in caching; this is functionally equivalent to setting the value to ``False``, except that a warning is also emitted. This flag can be set to ``True`` on a particular class, if the SQL that corresponds to the object does not change based on attributes which are local to this class, and not its superclass. .. seealso:: :ref:`compilerext_caching` - General guideslines for setting the :attr:`.HasCacheKey.inherit_cache` attribute for third-party or user defined SQL constructs.