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Classe « Cursor »

Méthode pymongo.cursor.Cursor.batch_size

Signature de la méthode batch_size

def batch_size(self, batch_size: 'int') -> 'Cursor[_DocumentType]' 

Description

help(Cursor.batch_size)

Limits the number of documents returned in one batch. Each batch
requires a round trip to the server. It can be adjusted to optimize
performance and limit data transfer.

.. note:: batch_size can not override MongoDB's internal limits on the
   amount of data it will return to the client in a single batch (i.e
   if you set batch size to 1,000,000,000, MongoDB will currently only
   return 4-16MB of results per batch).

Raises :exc:`TypeError` if `batch_size` is not an integer.
Raises :exc:`ValueError` if `batch_size` is less than ``0``.
Raises :exc:`~pymongo.errors.InvalidOperation` if this
:class:`Cursor` has already been used. The last `batch_size`
applied to this cursor takes precedence.

:param batch_size: The size of each batch of results requested.

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