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DOCS-14815 5.1 setWindowFields restriction updates #5975

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Oct 12, 2021
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DOCS-14815 5.1 setWindowFields restriction updates #5975

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3 changes: 3 additions & 0 deletions source/includes/fact-5.1-setWindowFields-snapshot-restriction.rst
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@@ -0,0 +1,3 @@
Starting in MongoDB 5.1 (and 5.0.4), the :pipeline:`$setWindowFields`
stage cannot be used within :doc:`transactions </core/transactions>`
or with :readconcern:`"snapshot"` read concern.
6 changes: 6 additions & 0 deletions source/reference/operator/aggregation/setWindowFields.txt
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Expand Up @@ -242,6 +242,12 @@ Restrictions

Restrictions for the :pipeline:`$setWindowFields` stage:

- Starting in MongoDB 5.1 (and 5.0.4), the :pipeline:`$setWindowFields`
stage cannot be used:

- Within :doc:`transactions </core/transactions>`.
- With :readconcern:`"snapshot"` read concern.

- :ref:`sortBy <setWindowFields-sortBy>` is required for:

- :ref:`Rank <setWindowFields-rank-operators>` and :ref:`order
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5 changes: 5 additions & 0 deletions source/release-notes/5.1-compatibility.txt
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Expand Up @@ -35,6 +35,11 @@ Removed Parameters
Aggregation
-----------

``$setWindowFields`` Transactions and Snapshot Read Concern
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

.. include:: /includes/fact-5.1-setWindowFields-snapshot-restriction.rst

Removed Index Types
-------------------

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