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PYTHON-4940 - Add index hint as an explicit parameter for distinct command. #2225

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Merged
merged 2 commits into from
Mar 25, 2025
Merged

PYTHON-4940 - Add index hint as an explicit parameter for distinct command. #2225

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PYTHON-4940 - Add index hint as an explicit parameter for distinct co…
NoahStapp Mar 25, 2025
7c305eb
Update changelog
NoahStapp Mar 25, 2025
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12 changes: 12 additions & 0 deletions pymongo/asynchronous/collection.py
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Original file line number Diff line number Diff line change
Expand Up @@ -3111,6 +3111,7 @@ async def distinct(
filter: Optional[Mapping[str, Any]] = None,
session: Optional[AsyncClientSession] = None,
comment: Optional[Any] = None,
hint: Optional[_IndexKeyHint] = None,
**kwargs: Any,
) -> list:
"""Get a list of distinct values for `key` among all documents
Expand Down Expand Up @@ -3138,8 +3139,15 @@ async def distinct(
:class:`~pymongo.asynchronous.client_session.AsyncClientSession`.
:param comment: A user-provided comment to attach to this
command.
:param hint: An index to use to support the query
predicate specified either by its string name, or in the same
format as passed to :meth:`~pymongo.asynchronous.collection.AsyncCollection.create_index`
(e.g. ``[('field', ASCENDING)]``).
:param kwargs: See list of options above.

.. versionchanged:: 4.12
Added ``hint`` parameter.

.. versionchanged:: 3.6
Added ``session`` parameter.

Expand All @@ -3158,6 +3166,10 @@ async def distinct(
cmd.update(kwargs)
if comment is not None:
cmd["comment"] = comment
if hint is not None:
if not isinstance(hint, str):
hint = helpers_shared._index_document(hint)
cmd["hint"] = hint

async def _cmd(
session: Optional[AsyncClientSession],
Expand Down
12 changes: 12 additions & 0 deletions pymongo/synchronous/collection.py
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Original file line number Diff line number Diff line change
Expand Up @@ -3104,6 +3104,7 @@ def distinct(
filter: Optional[Mapping[str, Any]] = None,
session: Optional[ClientSession] = None,
comment: Optional[Any] = None,
hint: Optional[_IndexKeyHint] = None,
**kwargs: Any,
) -> list:
"""Get a list of distinct values for `key` among all documents
Expand Down Expand Up @@ -3131,8 +3132,15 @@ def distinct(
:class:`~pymongo.client_session.ClientSession`.
:param comment: A user-provided comment to attach to this
command.
:param hint: An index to use to support the query
predicate specified either by its string name, or in the same
format as passed to :meth:`~pymongo.collection.Collection.create_index`
(e.g. ``[('field', ASCENDING)]``).
:param kwargs: See list of options above.

.. versionchanged:: 4.12
Added ``hint`` parameter.

.. versionchanged:: 3.6
Added ``session`` parameter.

Expand All @@ -3151,6 +3159,10 @@ def distinct(
cmd.update(kwargs)
if comment is not None:
cmd["comment"] = comment
if hint is not None:
if not isinstance(hint, str):
hint = helpers_shared._index_document(hint)
cmd["hint"] = hint

def _cmd(
session: Optional[ClientSession],
Expand Down
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