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iteration risk note #955

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merged 1 commit into from Mar 23, 2014
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iteration risk note #955

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6 changes: 6 additions & 0 deletions docs/en/reference/batch-processing.rst
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Expand Up @@ -94,6 +94,12 @@ with the batching strategy that was already used for bulk inserts:
fetch-join a collection-valued association. The nature of such SQL
result sets is not suitable for incremental hydration.

.. note::

Results may be fully buffered by the database client/ connection allocating
additional memory not visible to the PHP process. For large sets this
may easily kill the process for no apparant reason.


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