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import uuid
import pytest
from django.db import models
from psqlextra.query import ConflictAction
from ..fake_model import get_fake_model
ROW_COUNT = 10000
@pytest.mark.benchmark()
def test_upsert_bulk_naive(benchmark):
model = get_fake_model(
{"field": models.CharField(max_length=255, unique=True)}
)
rows = []
random_values = []
for i in range(0, ROW_COUNT):
random_value = str(uuid.uuid4())
random_values.append(random_value)
rows.append(model(field=random_value))
model.objects.bulk_create(rows)
def _native_upsert(model, random_values):
"""Performs a concurrency safe upsert using the native PostgreSQL
upsert."""
rows = [dict(field=random_value) for random_value in random_values]
for row in rows:
model.objects.on_conflict(["field"], ConflictAction.UPDATE).insert(
**row
)
benchmark(_native_upsert, model, random_values)
@pytest.mark.benchmark()
def test_upsert_bulk_native(benchmark):
model = get_fake_model(
{"field": models.CharField(max_length=255, unique=True)}
)
rows = []
random_values = []
for i in range(0, ROW_COUNT):
random_value = str(uuid.uuid4())
random_values.append(random_value)
rows.append(model(field=random_value))
model.objects.bulk_create(rows)
def _native_upsert(model, random_values):
"""Performs a concurrency safe upsert using the native PostgreSQL
upsert."""
rows = [dict(field=random_value) for random_value in random_values]
model.objects.on_conflict(["field"], ConflictAction.UPDATE).bulk_insert(
rows
)
benchmark(_native_upsert, model, random_values)
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