wrongmove/alembic/versions/a1b2c3d4e5f6_add_streaming_indexes.py
Viktor Barzin eafbc1ac52
Flatten repo structure: move crawler/ to root, remove vqa/ and immoweb/
The crawler subdirectory was the only active project. Moving it to the
repo root simplifies paths and removes the unnecessary nesting. The
vqa/ and immoweb/ directories were legacy/unused and have been removed.

Updated .drone.yml, .gitignore, .claude/ docs, and skills to reflect
the new flat structure.
2026-02-07 23:01:20 +00:00

56 lines
1.6 KiB
Python

"""add streaming indexes for query optimization
Revision ID: a1b2c3d4e5f6
Revises: e5f1bc4e3323
Create Date: 2026-02-01 12:00:00.000000
"""
from typing import Sequence, Union
from alembic import op
# revision identifiers, used by Alembic.
revision: str = 'a1b2c3d4e5f6'
down_revision: Union[str, None] = 'e5f1bc4e3323'
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None
def upgrade() -> None:
"""Add composite and single-column indexes for streaming query optimization."""
# Composite index for main query pattern (bedrooms, price, last_seen filtering)
op.create_index(
'ix_rentlisting_query_composite',
'rentlisting',
['number_of_bedrooms', 'price', 'last_seen'],
unique=False
)
op.create_index(
'ix_buylisting_query_composite',
'buylisting',
['number_of_bedrooms', 'price', 'last_seen'],
unique=False
)
# Missing single-column indexes for frequently filtered columns
op.create_index(
'ix_rentlisting_furnish_type',
'rentlisting',
['furnish_type'],
unique=False
)
op.create_index(
'ix_rentlisting_available_from',
'rentlisting',
['available_from'],
unique=False
)
def downgrade() -> None:
"""Remove streaming indexes."""
op.drop_index('ix_rentlisting_available_from', table_name='rentlisting')
op.drop_index('ix_rentlisting_furnish_type', table_name='rentlisting')
op.drop_index('ix_buylisting_query_composite', table_name='buylisting')
op.drop_index('ix_rentlisting_query_composite', table_name='rentlisting')