sqlalchemy.sql.schema.ColumnElementColumnDefault

class documentation

class ColumnElementColumnDefault(ColumnDefault): (source)

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default generator for a SQL expression .. versionadded:: 2.0

Method __init__ Undocumented
Class Variable is_clause_element Undocumented
Instance Variable arg Undocumented
Instance Variable for_update Undocumented
Method _copy Undocumented
Property _arg_is_typed Undocumented

Inherited from ColumnDefault:

Method __new__ Construct a new :class:`.ColumnDefault`.
Method __repr__ Undocumented

Inherited from DefaultGenerator (via ColumnDefault):

Class Variable __visit_name__ Undocumented
Class Variable is_callable Undocumented
Class Variable is_scalar Undocumented
Class Variable is_sequence Undocumented
Class Variable is_server_default Undocumented
Instance Variable column Undocumented
Method _execute_on_connection Undocumented
Method _execute_on_scalar Undocumented
Method _set_parent Associate with this SchemaEvent's parent object.
Class Variable _is_default_generator Undocumented

Inherited from Executable (via ColumnDefault, DefaultGenerator):

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 _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 _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 ColumnDefault, DefaultGenerator, Executable):

Class Variable __slots__ Undocumented
Class Variable _role_name Undocumented
Property _propagate_attrs Undocumented

Inherited from SQLRole (via ColumnDefault, DefaultGenerator, Executable, StatementRole):

Class Variable allows_lambda Undocumented
Class Variable uses_inspection Undocumented

Inherited from SchemaItem (via ColumnDefault, DefaultGenerator, Executable, StatementRole, SQLRole):

Class Variable create_drop_stringify_dialect Undocumented
Property info Info dictionary associated with the object, allowing user-defined data to be associated with this :class:`.SchemaItem`.
Method _init_items Initialize the list of child items for this SchemaItem.
Method _schema_item_copy Undocumented
Class Variable _use_schema_map Undocumented

Inherited from SchemaEventTarget (via ColumnDefault, DefaultGenerator, Executable, StatementRole, SQLRole, SchemaItem):

Class Variable dispatch Undocumented
Method _set_parent_with_dispatch Undocumented

Inherited from Visitable (via ColumnDefault, DefaultGenerator, Executable, StatementRole, SQLRole, SchemaItem, SchemaEventTarget, EventTarget):

Method __class_getitem__ Undocumented
Method __init_subclass__ Undocumented
Class Method _generate_compiler_dispatch Undocumented
Method _compiler_dispatch Undocumented
Class Variable _original_compiler_dispatch Undocumented
def __init__(self, arg: _SQLExprDefault, for_update: bool = False): (source)
overrides sqlalchemy.sql.schema.DefaultGenerator.__init__

Undocumented

is_clause_element: bool = (source)
overrides sqlalchemy.sql.schema.DefaultGenerator.is_clause_element

Undocumented

arg = (source)
overrides sqlalchemy.sql.schema.ColumnDefault.arg

Undocumented

for_update = (source)
overrides sqlalchemy.sql.schema.DefaultGenerator.for_update

Undocumented

def _copy(self) -> ColumnElementColumnDefault: (source)
overrides sqlalchemy.sql.schema.DefaultGenerator._copy

Undocumented

@util.memoized_property
@util.preload_module('sqlalchemy.sql.sqltypes')
_arg_is_typed: bool = (source)

Undocumented