a4c93a1df1
improve batch sync add postgres upsert fix sync locking improve listing sync speed up scraper clean up project prepare for github update docker setup
39 lines
1.3 KiB
Python
39 lines
1.3 KiB
Python
# Индексы для масштабированной БД (20k+ записей)
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from typing import Sequence, Union
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from alembic import op
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revision: str = "003_add_composite_indexes"
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down_revision: Union[str, None] = "002_add_indexes"
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branch_labels: Union[str, Sequence[str], None] = None
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depends_on: Union[str, Sequence[str], None] = None
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def upgrade() -> None:
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# Partial index для активных машин IAAI (is_sold = FALSE)
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# Ускоряет поиск при mark_sold операциях
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op.execute(
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"CREATE INDEX IF NOT EXISTS ix_cars_active_iaai "
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"ON cars (origin_url) "
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"WHERE is_sold = FALSE AND origin_id LIKE 'iaai:%'"
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)
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# Composite index для проверки дубликатов изображений
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op.create_index(
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"ix_images_car_id_fullres",
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"images",
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["car_id", "fullres_image"],
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)
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# Index для быстрого поиска existing машин по origin_url
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op.execute(
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"CREATE INDEX IF NOT EXISTS ix_cars_origin_url_id "
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"ON cars (origin_url, origin_id)"
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)
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def downgrade() -> None:
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op.execute("DROP INDEX IF EXISTS ix_cars_origin_url_id")
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op.drop_index("ix_images_car_id_fullres", table_name="images")
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op.execute("DROP INDEX IF EXISTS ix_cars_active_iaai")
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