ponzischeme89
37 lines
1.3 KiB
Python
37 lines
1.3 KiB
Python
"""add booking performance indexes
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Revision ID: c1e4b8f2a7d9
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Revises: a4d9c7e18b21
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Create Date: 2026-04-08 14:00:00.000000
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"""
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from typing import Sequence, Union
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from alembic import op
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revision: str = 'c1e4b8f2a7d9'
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down_revision: Union[str, None] = 'a4d9c7e18b21'
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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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# Speed up filtering bookings by status (most common admin query filter)
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op.create_index('ix_bookings_status', 'bookings', ['status'])
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# Speed up date-range queries and ordering used by the schedule view
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op.create_index('ix_bookings_requested_date', 'bookings', ['requested_date'])
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# Speed up the SSE signature query: max(updated_at) table scan → index scan
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op.create_index('ix_bookings_updated_at', 'bookings', ['updated_at'])
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# Composite: member + status used by member-facing /members/bookings endpoint
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op.create_index('ix_bookings_member_id_status', 'bookings', ['member_id', 'status'])
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def downgrade() -> None:
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op.drop_index('ix_bookings_member_id_status', table_name='bookings')
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op.drop_index('ix_bookings_updated_at', table_name='bookings')
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op.drop_index('ix_bookings_requested_date', table_name='bookings')
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op.drop_index('ix_bookings_status', table_name='bookings')
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