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$orderby should have warning for 32MB limit #1556

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$orderby should have warning for 32MB limit #1556

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9 changes: 9 additions & 0 deletions source/reference/operator/meta/orderby.txt
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Expand Up @@ -35,3 +35,12 @@ $orderby
large in-memory sort. The :method:`cursor.limit()` increases the
speed and reduces the amount of memory required to return this query
by way of an optimized algorithm.

.. warning::

The sort function requires that the entire sort be able to
complete within 32 megabytes. When the sort option consumes more
than 32 megabytes, MongoDB will return an error. Use :operator:`$maxScan`
and/or :method:`~cursor.limit()`, or create an index on the field that you're
sorting to avoid this error.