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Fixed #36118 -- Accounted for multiple primary keys in bulk_update max_batch_size.

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Co-authored-by: Simon Charette <charette.s@gmail.com>
This commit is contained in:
Sarah Boyce
2025-01-27 10:28:21 +01:00
parent 0671a461c4
commit 5a2c1bc07d
6 changed files with 69 additions and 11 deletions
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17
tests/backends/oracle/test_operations.py
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@@ -1,7 +1,7 @@
import unittest
from django.core.management.color import no_style
from django.db import connection
from django.db import connection, models
from django.test import TransactionTestCase
from ..models import Person, Tag
@@ -22,14 +22,25 @@ class OperationsTests(TransactionTestCase):
objects = range(2**16)
self.assertEqual(connection.ops.bulk_batch_size([], objects), len(objects))
# Each field is a parameter for each object.
first_name_field = Person._meta.get_field("first_name")
last_name_field = Person._meta.get_field("last_name")
self.assertEqual(
connection.ops.bulk_batch_size(["id"], objects),
connection.ops.bulk_batch_size([first_name_field], objects),
connection.features.max_query_params,
)
self.assertEqual(
connection.ops.bulk_batch_size(["id", "other"], objects),
connection.ops.bulk_batch_size(
[first_name_field, last_name_field],
objects,
),
connection.features.max_query_params // 2,
)
composite_pk = models.CompositePrimaryKey("first_name", "last_name")
composite_pk.fields = [first_name_field, last_name_field]
self.assertEqual(
connection.ops.bulk_batch_size([composite_pk, first_name_field], objects),
connection.features.max_query_params // 3,
)
def test_sql_flush(self):
statements = connection.ops.sql_flush(