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Fixed #30827 -- Made batch_size arg of QuerySet.bulk_create() respect DatabaseOperations.bulk_batch_size().

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Thanks Chetan Khanna for tests.
This commit is contained in:
Ahmet Kucuk
2019-10-01 13:13:19 -04:00
committed by Mariusz Felisiak
parent 3120490912
commit 09578f6dfb
2 changed files with 11 additions and 1 deletions
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3
django/db/models/query.py
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@@ -1209,7 +1209,8 @@ class QuerySet:
if ignore_conflicts and not connections[self.db].features.supports_ignore_conflicts:
raise NotSupportedError('This database backend does not support ignoring conflicts.')
ops = connections[self.db].ops
batch_size = (batch_size or max(ops.bulk_batch_size(fields, objs), 1))
max_batch_size = max(ops.bulk_batch_size(fields, objs), 1)
batch_size = min(batch_size, max_batch_size) if batch_size else max_batch_size
inserted_rows = []
bulk_return = connections[self.db].features.can_return_rows_from_bulk_insert
for item in [objs[i:i + batch_size] for i in range(0, len(objs), batch_size)]: