Merge pull request #955 from goatherd/patch-1

iteration risk note
doctrine · Mar 23, 2014 · 5335b2a · 5335b2a
2 parents 71fc425 + 0677423
commit 5335b2a
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/docs/en/reference/batch-processing.rst b/docs/en/reference/batch-processing.rst
@@ -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.
+
 
 Bulk Deletes
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