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DOCS-14854 findOneAndUpdate sharded (#6039) #6041

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Oct 25, 2021
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DOCS-14854 findOneAndUpdate sharded (#6039) #6041

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10 changes: 10 additions & 0 deletions source/core/sharded-cluster-requirements.txt
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Expand Up @@ -39,6 +39,16 @@ Single Document Modification Operations in Sharded Collections

.. include:: /includes/fact-single-modification-in-sharded-collections.rst

To use :method:`~db.collection.findOneAndUpdate()` with a sharded
collection, your query filter must include an equality condition on the
:term:`shard key` to compare the key and value in either of these
formats:

.. code-block:: javascript

{ key: value }
{ key: { $eq: value } }

.. _sharding-requirements-unique-indexes:

Unique Indexes in Sharded Collections
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