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In the general sense, options are any kind of Python object that can be interpreted by the SQL compiler for the statement. These options can be consumed by specific dialects or specific kinds of compilers. The most commonly known kind of option are the ORM level options that apply "eager load" and other loading behaviors to an ORM query. However, options can theoretically be used for many other purposes. For background on specific kinds of options for specific kinds of statements, refer to the documentation for those option objects. .. versionchanged:: 1.4 - added :meth:`.Executable.options` to Core statement objects towards the goal of allowing unified Core / ORM querying capabilities. .. seealso:: :ref:`loading_columns` - refers to options specific to the usage of ORM queries :ref:`relationship_loader_options` - refers to options specific to the usage of ORM queries css|] }ttj|VqdSrj)r0expectrExecutableOptionRole)rrrTrTrUrNs  z%Executable.options..)rrqrSrrTrTrUr0s zExecutable.optionscompile_optionsrcCs ||_|S)z|Assign the compile options to a new value. :param compile_options: appropriate CacheableOptions structure r)rSrrTrTrU_set_compile_optionsTszExecutable._set_compile_optionscCs |jdusJ|j|7_|S)z*update the _compile_options with new keys.NrrrTrTrU_update_compile_options_sz"Executable._update_compile_options callable_Callable[[CompileState], None] cache_argscCs|j||ff7_|S)aMAdd a context option to this statement. These are callable functions that will be given the CompileState object upon compilation. A second argument cache_args is required, which will be combined with the ``__code__`` identity of the function itself in order to produce a cache key. )r)rSrrrTrTrU_add_context_optiongszExecutable._add_context_option.)r logging_tokenisolation_level no_parametersstream_resultsmax_row_buffer yield_perinsertmanyvalues_page_sizerpopulate_existing autoflushsynchronize_session dml_strategy render_nullsis_delete_usingis_update_frompreserve_rowcountrrrMrrrintrrrrrr5rr4rrrrrcKrvrjrT)rSrrrrrrrrrrrrrrrrrrrTrTrUrzszExecutable.execution_optionscKrvrjrT)rSrrTrTrUrr}cKs6d|vr tdd|vrtd|j||_|S)aSet non-SQL options for the statement which take effect during execution. Execution options can be set at many scopes, including per-statement, per-connection, or per execution, using methods such as :meth:`_engine.Connection.execution_options` and parameters which accept a dictionary of options such as :paramref:`_engine.Connection.execute.execution_options` and :paramref:`_orm.Session.execute.execution_options`. The primary characteristic of an execution option, as opposed to other kinds of options such as ORM loader options, is that **execution options never affect the compiled SQL of a query, only things that affect how the SQL statement itself is invoked or how results are fetched**. That is, execution options are not part of what's accommodated by SQL compilation nor are they considered part of the cached state of a statement. The :meth:`_sql.Executable.execution_options` method is :term:`generative`, as is the case for the method as applied to the :class:`_engine.Engine` and :class:`_orm.Query` objects, which means when the method is called, a copy of the object is returned, which applies the given parameters to that new copy, but leaves the original unchanged:: statement = select(table.c.x, table.c.y) new_statement = statement.execution_options(my_option=True) An exception to this behavior is the :class:`_engine.Connection` object, where the :meth:`_engine.Connection.execution_options` method is explicitly **not** generative. The kinds of options that may be passed to :meth:`_sql.Executable.execution_options` and other related methods and parameter dictionaries include parameters that are explicitly consumed by SQLAlchemy Core or ORM, as well as arbitrary keyword arguments not defined by SQLAlchemy, which means the methods and/or parameter dictionaries may be used for user-defined parameters that interact with custom code, which may access the parameters using methods such as :meth:`_sql.Executable.get_execution_options` and :meth:`_engine.Connection.get_execution_options`, or within selected event hooks using a dedicated ``execution_options`` event parameter such as :paramref:`_events.ConnectionEvents.before_execute.execution_options` or :attr:`_orm.ORMExecuteState.execution_options`, e.g.:: from sqlalchemy import event @event.listens_for(some_engine, "before_execute") def _process_opt(conn, statement, multiparams, params, execution_options): "run a SQL function before invoking a statement" if execution_options.get("do_special_thing", False): conn.exec_driver_sql("run_special_function()") Within the scope of options that are explicitly recognized by SQLAlchemy, most apply to specific classes of objects and not others. The most common execution options include: * :paramref:`_engine.Connection.execution_options.isolation_level` - sets the isolation level for a connection or a class of connections via an :class:`_engine.Engine`. This option is accepted only by :class:`_engine.Connection` or :class:`_engine.Engine`. * :paramref:`_engine.Connection.execution_options.stream_results` - indicates results should be fetched using a server side cursor; this option is accepted by :class:`_engine.Connection`, by the :paramref:`_engine.Connection.execute.execution_options` parameter on :meth:`_engine.Connection.execute`, and additionally by :meth:`_sql.Executable.execution_options` on a SQL statement object, as well as by ORM constructs like :meth:`_orm.Session.execute`. * :paramref:`_engine.Connection.execution_options.compiled_cache` - indicates a dictionary that will serve as the :ref:`SQL compilation cache ` for a :class:`_engine.Connection` or :class:`_engine.Engine`, as well as for ORM methods like :meth:`_orm.Session.execute`. Can be passed as ``None`` to disable caching for statements. This option is not accepted by :meth:`_sql.Executable.execution_options` as it is inadvisable to carry along a compilation cache within a statement object. * :paramref:`_engine.Connection.execution_options.schema_translate_map` - a mapping of schema names used by the :ref:`Schema Translate Map ` feature, accepted by :class:`_engine.Connection`, :class:`_engine.Engine`, :class:`_sql.Executable`, as well as by ORM constructs like :meth:`_orm.Session.execute`. .. seealso:: :meth:`_engine.Connection.execution_options` :paramref:`_engine.Connection.execute.execution_options` :paramref:`_orm.Session.execute.execution_options` :ref:`orm_queryguide_execution_options` - documentation on all ORM-specific execution options rz'isolation_level' execution option may only be specified on Connection.execution_options(), or per-engine using the isolation_level argument to create_engine().rzm'compiled_cache' execution option may only be specified on Connection.execution_options(), not per statement.)r(rrr rrTrTrUrshrFcCr!)zGet the non-SQL options which will take effect during execution. .. versionadded:: 1.3 .. seealso:: :meth:`.Executable.execution_options` )rrRrTrTrUget_execution_options s z Executable.get_execution_options)rrLrrrrrrrrrrrir)rrCrrErrKrir)rrCrrErrKrirrirt)rrrir.)rrrir.)rrrir.)rrrrrir.)&rrrrtrrMrrrrrrrrrrrrrrrrrr5rr4rrrrrrrrrrrir.)rrrir.)rrrir.)rirF))rXrYrZrrror)r]r_is_default_generatorrrr%dp_executable_optionsr#dp_with_context_optionsdp_propagate_attrs_executable_traverse_internals is_selectis_from_statement is_update is_insertis_text is_deleteis_dmlrrrrr~rr8r@rrrrrrrrrTrTrTrUrEs         #     vrEc@s.eZdZUdZded<dd d Zdd d Zd S)SchemaEventTargetzBase class for elements that are the targets of :class:`.DDLEvents` events. This includes :class:`.SchemaItem` as well as :class:`.SchemaType`. zdispatcher[SchemaEventTarget]dispatchparentrrrircKsdS)z0Associate with this SchemaEvent's parent object.NrTrSrrrTrTrU _set_parent"ryzSchemaEventTarget._set_parentcKs2|j|||j|fi||j||dSrj)rbefore_parent_attachrafter_parent_attachrrTrTrU_set_parent_with_dispatch%sz+SchemaEventTarget._set_parent_with_dispatchN)rrrrrir)rXrYrZrrorrrTrTrTrUrs  rc@seZdZdZddiZdS) SchemaVisitorz/Define the visiting for ``SchemaItem`` objects.schema_visitorTN)rXrYrZr__traverse_options__rTrTrTrUr-r\rc@s(eZdZdZdZdZdZdZdZdZ dS) _SentinelDefaultCharacterizationnoneunknown clientsidesentinel_default serversideidentitysequenceN) rXrYrZNONEUNKNOWN CLIENTSIDESENTINEL_DEFAULT SERVERSIDEIDENTITYSEQUENCErTrTrTrUr3src@s@eZdZUdZded<dZded<dZded<ejZ ded <dS) _SentinelColumnCharacterizationNzOptional[Sequence[Column[Any]]]columnsFr is_explicit is_autoincrdefault_characterization) rXrYrZrrorrrrrrTrTrTrUr=s   r_COLKEY_COL_coColumnElement[Any]T)r` covariant_COLc@s>eZdZUdZded<dddZd d Zd d ZdddZdS)_ColumnMetricscolumnrr  collectionColumnCollection[Any, _COL_co]colcCs2||_|j}|r|jD] }|||q dSdSrj)r  _proxy_index_expanded_proxy_setadd)rSr rpieps_colrTrTrUrQs z_ColumnMetrics.__init__cCs|jjSrj)r rrRrTrTrUget_expanded_proxy_set]rz%_ColumnMetrics.get_expanded_proxy_setcCsL|j}|sdS|jjD]}||d}|r|||dur#|s#||=q dSrj)rr rrdiscard)rSr rrcolsetrTrTrUdispose`s    z_ColumnMetrics.dispose target_set=Union[Set[ColumnElement[Any]], FrozenSet[ColumnElement[Any]]]rircCs2|jj}||D] }|t|gsdSq dSrw)r rrcrr)rSrexpanded_proxy_settrTrTrUembeddedks z_ColumnMetrics.embeddedN)r rrr)rrrir) rXrYrZrrorrrrrTrTrTrUr Ls    r c@seZdZUdZdZded<ded<ded<d ed < d{d|ddZedd}ddZ d~ddZ e dddZ dddZ dd d!Zdd#d$Zdd&d'Zdd)d*Zdd,d-Zedd1d2Zedd5d2Zedd7d2Zdd:d2Zddd?ZddBdCZddEdFZed{ddIdJZeddMdJZ d{ddPdJZddQdRZddUdVZddWdXZddZd[Zdd\d]Zdd_d`ZddadbZ d Z!d~dcddZ" d{ddgdhZ#ddjdkZ$ddmdnZ%ddpdqZ&ddrdsZ'dtduZ( vdddydzZ)d S)ColumnCollectionaCollection of :class:`_expression.ColumnElement` instances, typically for :class:`_sql.FromClause` objects. The :class:`_sql.ColumnCollection` object is most commonly available as the :attr:`_schema.Table.c` or :attr:`_schema.Table.columns` collection on the :class:`_schema.Table` object, introduced at :ref:`metadata_tables_and_columns`. The :class:`_expression.ColumnCollection` has both mapping- and sequence- like behaviors. A :class:`_expression.ColumnCollection` usually stores :class:`_schema.Column` objects, which are then accessible both via mapping style access as well as attribute access style. To access :class:`_schema.Column` objects using ordinary attribute-style access, specify the name like any other object attribute, such as below a column named ``employee_name`` is accessed:: >>> employee_table.c.employee_name To access columns that have names with special characters or spaces, index-style access is used, such as below which illustrates a column named ``employee ' payment`` is accessed:: >>> employee_table.c["employee ' payment"] As the :class:`_sql.ColumnCollection` object provides a Python dictionary interface, common dictionary method names like :meth:`_sql.ColumnCollection.keys`, :meth:`_sql.ColumnCollection.values`, and :meth:`_sql.ColumnCollection.items` are available, which means that database columns that are keyed under these names also need to use indexed access:: >>> employee_table.c["values"] The name for which a :class:`_schema.Column` would be present is normally that of the :paramref:`_schema.Column.key` parameter. In some contexts, such as a :class:`_sql.Select` object that uses a label style set using the :meth:`_sql.Select.set_label_style` method, a column of a certain key may instead be represented under a particular label name such as ``tablename_columnname``:: >>> from sqlalchemy import select, column, table >>> from sqlalchemy import LABEL_STYLE_TABLENAME_PLUS_COL >>> t = table("t", column("c")) >>> stmt = select(t).set_label_style(LABEL_STYLE_TABLENAME_PLUS_COL) >>> subq = stmt.subquery() >>> subq.c.t_c :class:`.ColumnCollection` also indexes the columns in order and allows them to be accessible by their integer position:: >>> cc[0] Column('x', Integer(), table=None) >>> cc[1] Column('y', Integer(), table=None) .. versionadded:: 1.4 :class:`_expression.ColumnCollection` allows integer-based index access to the collection. Iterating the collection yields the column expressions in order:: >>> list(cc) [Column('x', Integer(), table=None), Column('y', Integer(), table=None)] The base :class:`_expression.ColumnCollection` object can store duplicates, which can mean either two columns with the same key, in which case the column returned by key access is **arbitrary**:: >>> x1, x2 = Column("x", Integer), Column("x", Integer) >>> cc = ColumnCollection(columns=[(x1.name, x1), (x2.name, x2)]) >>> list(cc) [Column('x', Integer(), table=None), Column('x', Integer(), table=None)] >>> cc["x"] is x1 False >>> cc["x"] is x2 True Or it can also mean the same column multiple times. These cases are supported as :class:`_expression.ColumnCollection` is used to represent the columns in a SELECT statement which may include duplicates. A special subclass :class:`.DedupeColumnCollection` exists which instead maintains SQLAlchemy's older behavior of not allowing duplicates; this collection is used for schema level objects like :class:`_schema.Table` and :class:`.PrimaryKeyConstraint` where this deduping is helpful. The :class:`.DedupeColumnCollection` class also has additional mutation methods as the schema constructs have more use cases that require removal and replacement of columns. .. versionchanged:: 1.4 :class:`_expression.ColumnCollection` now stores duplicate column keys as well as the same column in multiple positions. The :class:`.DedupeColumnCollection` class is added to maintain the former behavior in those cases where deduplication as well as additional replace/remove operations are needed. ) _collection_index_colsetrz6List[Tuple[_COLKEY, _COL_co, _ColumnMetrics[_COL_co]]]rz4Dict[Union[None, str, int], Tuple[_COLKEY, _COL_co]]r z6Dict[ColumnElement[Any], Set[_ColumnMetrics[_COL_co]]]rz Set[_COL_co]r!Nr+Optional[Iterable[Tuple[_COLKEY, _COL_co]]]cCsXt|dtt|dit|dttjt|dg|r*||dSdS)Nr!r rr)rrhr collections defaultdictr) OrderedSet_initial_populate)rSrrTrTrUrszColumnCollection.__init__zsqlalchemy.sql.elementsrir8cCstjj}|j|jtjddS)NF)_literal_as_text_roler/)r)r sql_elementsr8 _all_columnsrColumnsClauseRolerSr2rTrTrU__clause_element__s z#ColumnCollection.__clause_element__iter_!Iterable[Tuple[_COLKEY, _COL_co]]rcCs||dSrj_populate_separate_keysrSr-rTrTrUr&sz"ColumnCollection._initial_populate List[_COL_co]cCdd|jDS)NcSg|]\}}}|qSrTrTrrrrTrTrUr z1ColumnCollection._all_columns..rrRrTrTrUr)szColumnCollection._all_columns List[_COLKEY]cCr3)zQReturn a sequence of string key names for all columns in this collection.cSsg|]\}}}|qSrTrT)rr1rrTrTrUrr6z)ColumnCollection.keys..r7rRrTrTrUkeys szColumnCollection.keyscCr3)zReturn a sequence of :class:`_sql.ColumnClause` or :class:`_schema.Column` objects for all columns in this collection.cSr4rTrTr5rTrTrUrr6z+ColumnCollection.values..r7rRrTrTrUrszColumnCollection.valuesList[Tuple[_COLKEY, _COL_co]]cCr3)zReturn a sequence of (key, column) tuples for all columns in this collection each consisting of a string key name and a :class:`_sql.ColumnClause` or :class:`_schema.Column` object. cSg|] \}}}||fqSrTrTrr1rrrTrTrUrz*ColumnCollection.items..r7rRrTrTrUrVszColumnCollection.itemsrcC t|jSrj)rrrRrTrTrU__bool__rzColumnCollection.__bool__rcCr>rj)rrrRrTrTrUr"rzColumnCollection.__len__Iterator[_COL_co]cCstdd|jDS)NcSr4rTrTr5rTrTrUr'r6z-ColumnCollection.__iter__..)rrrRrTrTrUr%szColumnCollection.__iter__rsUnion[str, int]rcCrvrjrTrwrTrTrUr)r}zColumnCollection.__getitem__Tuple[Union[str, int], ...]*ReadOnlyColumnCollection[_COLKEY, _COL_co]cCrvrjrTrwrTrTrUr,rslicecCrvrjrTrwrTrTrUr1r3Union[str, int, slice, Tuple[Union[str, int], ...]]:Union[ReadOnlyColumnCollection[_COLKEY, _COL_co], _COL_co]c sz/t|ttfr(t|trddj|D}n fdd|D}t|WSj|dWStyL}zt|jdt rGt |jd|d}~ww)Ncss|] \}}}||fVqdSrjrT)rsub_keyrrrTrTrUr<s  z/ColumnCollection.__getitem__..c3s|]}j|VqdSrjr )rrGrRrTrUrArr) rrqrDrr as_readonlyr rrr IndexError)rSrscolsrrTrRrUr6s rtc Cs4z|j|dWSty}zt||d}~ww)Nr)r rAttributeError)rSrsrrTrTrUrxLs  zColumnCollection.__getattr__cCs&||jvrt|tstddSdS)Nz'__contains__ requires a string argumentFT)r rrtr(rrwrTrTrU __contains__Rs  zColumnCollection.__contains__reColumnCollection[Any, Any]cCs&t||D] \}}||urdSqdS)zdCompare this :class:`_expression.ColumnCollection` to another based on the names of the keysFTr)rSrelrrTrTrUcompare\s zColumnCollection.comparercCs ||Srj)rR)rSrerTrTrUryfrzColumnCollection.__eq__rgOptional[_COL_co]cCrvrjrTrSrsrgrTrTrUrir}zColumnCollection.getr Union[_COL_co, _COL]cCrvrjrTrTrTrTrUrlr}Optional[_COL]Optional[Union[_COL_co, _COL]]cCs||jvr |j|dS|S)zGet a :class:`_sql.ColumnClause` or :class:`_schema.Column` object based on a string key name from this :class:`_expression.ColumnCollection`.rrHrTrTrTrUros cCs d|jjddd|DfS)Nrzr{css|]}t|VqdSrj)rtrrTrTrUr~sz+ColumnCollection.__str__..)rrXr}rRrTrTrU__str__{szColumnCollection.__str__rrcCrrjrrrTrTrUrzColumnCollection.__setitem__cCrrjrrwrTrTrUrrYzColumnCollection.__delitem__rcCrrjr)rSrsrrTrTrUrhrYzColumnCollection.__setattr__cCr)zQDictionary clear() is not implemented for :class:`_sql.ColumnCollection`.rrRrTrTrUclearr"zColumnCollection.clearr cCrrjr)rSr rTrTrUremoverYzColumnCollection.removecCr)zRDictionary update() is not implemented for :class:`_sql.ColumnCollection`.rr1rTrTrUr$r"zColumnCollection.updatecsnfdd|Djdd<}jdd|Djddt|Djddt|DdS) *populate from an iterator of (key, column)c g|] \}}||t|fqSrTr rr1rrRrTrUrsz.Ncss|] \}}}|VqdSrj _deannotate)rrrrTrTrUrz;ColumnCollection._populate_separate_keys..cS i|] \}\}}}|||fqSrTrTridxr1rrrTrTrUrR z.cSi|] \}}}|||fqSrTrTr<rTrTrUrRr)rr!r$r  enumerater%)rSr-r rTrRrUr0s z(ColumnCollection._populate_separate_keysrOptional[_COLKEY]cCs~|dur|j}n|}t|j}tt|}|j||t||f|j| ||f|j |<||j vr=||f|j |<dSdS)aAdd a column to this :class:`_sql.ColumnCollection`. .. note:: This method is **not normally used by user-facing code**, as the :class:`_sql.ColumnCollection` is usually part of an existing object such as a :class:`_schema.Table`. To add a :class:`_schema.Column` to an existing :class:`_schema.Table` object, use the :meth:`_schema.Table.append_column` method. N) rsrrrrappendr r!rrar )rSr rscolkeyrP_columnrTrTrUrs   zColumnCollection.addr+cCsdd|jD|jdS)NcSr;rTrTrr1rrrTrTrUrr=z1ColumnCollection.__getstate__..rr rnrRrTrTrU __getstate__szColumnCollection.__getstate__statecsftd|dtdttjtdfdd|dDtdddjDdS) Nr rrcr]rTr^r_rRrTrUrsz1ColumnCollection.__setstate__..r!cSsh|]\}}}|qSrTrTr<rTrTrUrr6z0ColumnCollection.__setstate__..)rrhr#r$r)r%r)rSrprTrRrU __setstate__s zColumnCollection.__setstate__rcCs&||jvrt|trtddSdS)z3Checks if a column object exists in this collectionzZcontains_column cannot be used with string arguments. 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N)rrr rr)rSrrmetricsepsrrTrTrU_init_proxy_indexsz"ColumnCollection._init_proxy_indexFrequire_embeddedOptional[Union[_COL, _COL_co]]c s|jvrSd\}}j}|js|fdd|DD]W}|r)||rw|dur0|}q ||jj}|durB||jj}t|t|krO|}|}q ||krwt fdd|j D}t fdd|j D} | |krw|}|}q |r}|jSdS)aGiven a :class:`_expression.ColumnElement`, return the exported :class:`_expression.ColumnElement` object from this :class:`_expression.ColumnCollection` which corresponds to that original :class:`_expression.ColumnElement` via a common ancestor column. :param column: the target :class:`_expression.ColumnElement` to be matched. :param require_embedded: only return corresponding columns for the given :class:`_expression.ColumnElement`, if the given :class:`_expression.ColumnElement` is actually present within a sub-element of this :class:`_expression.Selectable`. 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This is useful by schema level objects such as :class:`_schema.Table` and :class:`.PrimaryKeyConstraint`. The collection includes more sophisticated mutator methods as well to suit schema objects which require mutable column collections. .. versionadded:: 1.4 Nr rrs Optional[str]rircCs|dur|j|krtd|j}|durtd||jvr:|j|d}||ur,dS||tj|ddS|||dS)NKDedupeColumnCollection requires columns be under the same key as their .keyz-Can't add unnamed column to column collectionrr) rsr(rr replacer)r7reset_append_new_column)rSr rsexistingrTrTrUrs   zDedupeColumnCollection.addrt named_columncCsRt|j}|j||t||f|j|||f|j|<||f|j|<dSrj)rrrjr r!rrar )rSrsrrPrTrTrUrs z)DedupeColumnCollection._append_new_columnr-Iterable[Tuple[str, _NAMEDCOL]]cCst|}g}|D]?\}}|j|krtd|j|jvr(|j|jkr(||q|j|jvr4||q||f|j|<|j||t||fq|j dd|jD|j ddt |jD|D]}| |qddS)r\rcss|] \}}}|VqdSrjr`rmrTrTrUrrbzADedupeColumnCollection._populate_separate_keys..css&|]\}\}}}|||ffVqdSrjrTrdrTrTrUrs N) listrsr(rrQr rjrr r!r$rhr)rSr-rL replace_colr1rrTrTrUr0s(       z.DedupeColumnCollection._populate_separate_keysIterable[_NAMEDCOL]cCs|dd|DdS)Ncss|]}|j|fVqdSrj)rs)rrrTrTrUrrIz0DedupeColumnCollection.extend..r/r1rTrTrUextendszDedupeColumnCollection.extendcs|jvr td|jj=|jfdd|jD|jdd<|jdD]}||q,|j ddt |jD|jt |j=dS)Nz8Can't remove column %r; column is not in this collectioncs$g|]\}}}|ur|||fqSrTrT)rr1rrur rTrUrs z1DedupeColumnCollection.remove..rTcSrcrTrTrrer1rrrTrTrUrRrfz1DedupeColumnCollection.remove..) r!rr rsr[rrrrr$rhr)rSr rurTr rUr[s"     zDedupeColumnCollection.remove extra_removeOptional[Iterable[_NAMEDCOL]]c Cs|rt|}nt}|j|jvr)|j|jkr)|j|jd}|j|jkr)|||j|jvr:||j|jd|sE||j|dSg}d}|jD]"\}}} ||vrf|sed}||j|t||fqL|||| fqL|r|j ||D]} |j | dD]} | |qqy|s||j|t||f|j |||jdd<|j|jddt|jD|jdd|jDdS) aadd the given column to this collection, removing unaliased versions of this column as well as existing columns with the same key. e.g.:: t = Table("sometable", metadata, Column("col1", Integer)) t.columns.replace(Column("col1", Integer, key="columnone")) will remove the original 'col1' from the collection, and add the new column under the name 'columnname'. Used by schema.Column to override columns during table reflection. rNFTrTcSrcrTrTrrTrTrUrR'rfz2DedupeColumnCollection.replace..cSrgrTrTr<rTrTrUrR)r)rrQr rsrrrrjr r!difference_updaterrrrarZr$rh) rSr r remove_colrenew_colsreplacedr1rrurcrTrTrUrsL       zDedupeColumnCollection.replacerj)r rrsrrir)rsrtrrrir)r-rrir)r-rrir)r rrir)r rrrrir) rXrYrZrrrr0rr[rrTrTrTrUr}s   rc@sHeZdZdZddZddZddZddd dZdddZdddZ dS)rt_parentcCsRt|d|t|d|jt|d|jt|d|jt|d|jdS)Nrr!r rr)rrhr!r rr)rSr rTrTrUr1s z!ReadOnlyColumnCollection.__init__cCs d|jiSNrrrRrTrTrUro8rz%ReadOnlyColumnCollection.__getstate__cCs|d}||dSr)r)rSrprrTrTrUrq;sz%ReadOnlyColumnCollection.__setstate__.r rrsricC |dSrj _readonly)rSr rsrTrTrUr?rWzReadOnlyColumnCollection.addr2rcCrrjrr+rTrTrUrBrWzReadOnlyColumnCollection.extenditemcCrrjr)rSrrTrTrUr[ErWzReadOnlyColumnCollection.removeN).)r rrsrrir)r2rrir)rrrir) rXrYrZrrrorqrrr[rTrTrTrUrt,s  rtc@s,eZdZddZddZddZddZd S) ColumnSetcCs||vSrjrTrrrTrTrUrsJrzColumnSet.contains_columncCs|D]}||qdSrj)r)rSrLrrTrTrUrMs zColumnSet.extendcCs:g}|D]}|D]}||r|||kqqtj|Srj)rrjr2and_)rSrerPrrrTrTrUryQs  zColumnSet.__eq__cCsttdd|DS)Ncss|]}|VqdSrjrTrrTrTrUrZsz%ColumnSet.__hash__..)hashrqrRrTrTrUrYrzColumnSet.__hash__N)rXrYrZrsrryrrTrTrTrUrIs  rzColumnClause[Any]entity1Union[_HasEntityNamespace, ExternallyTraversible]cCsLztt|jWSty%ttt|D] }t|r#|jYSqw)zReturn the nearest .entity_namespace for the given entity. If not immediately available, does an iterate to find a sub-element that has one, if any. )rr{r|rMriterater$r)rrrTrTrU_entity_namespace]s  rrsrg%Union[SQLCoreOperations[Any], _NoArg]ruc CsXzt|}|turt|||WSt||WSty+}z td||f|d}~ww)zReturn an entry from an entity_namespace. Raises :class:`_exc.InvalidRequestError` rather than attribute error on not found. z.Entity namespace for "%s" has no property "%s"N)rr[rxrMr(r)rrsrgnsrrTrTrU_entity_namespace_keyps   r)rrrir)r2rrir)r2rrirA)rrarira)rrtrrrir)r2rrir)rrrrrir)rrrirr)rrrsrtrgrriru)r __future__rr#enumrrrrr,r,rrrr r r r r rrrrrrrrrrrrrrrr cache_keyrr traversalsr!r"r#r$r%r'r(r)r*r+ compat_typing util.typingr-r.r/r0r2r3 _orm_typesr4r5_typingr6r7r8r9r:r;r<r=schemar>r? selectabler@rArBenginerCrDengine.interfacesrErFrGrHrIrJrKrLrMrNrOrPr[r]r^ _NONE_NAMEr_rart_AmbiguousTableNameMaprbr_never_select_columnrrr{rrrrrrrrrrrrrrrrr rrrr9rNrXrYtyper_rmrr StatementRolerE EventTargetrrrrrrr r rrrReadOnlyContainerrtr%rrrrTrTrTrUs.                                                                                     9 +j !3   ,  0