"""SEARCH-001: pg_trgm-Erweiterung + GIN-Trigram-Index auf Objekt.name/code.

Revision ID: 0023_suchindex
Revises: 0022_wartung
Create Date: 2026-09-08
"""
from typing import Sequence, Union

from alembic import op

revision: str = "0023_suchindex"
down_revision: Union[str, None] = "0022_wartung"
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None


def upgrade() -> None:
    op.execute("CREATE EXTENSION IF NOT EXISTS pg_trgm")
    op.execute("CREATE INDEX ix_objekt_name_trgm ON objekt USING GIN (name gin_trgm_ops)")
    op.execute("CREATE INDEX ix_objekt_code_trgm ON objekt USING GIN (code gin_trgm_ops)")


def downgrade() -> None:
    op.execute("DROP INDEX IF EXISTS ix_objekt_code_trgm")
    op.execute("DROP INDEX IF EXISTS ix_objekt_name_trgm")
    op.execute("DROP EXTENSION IF EXISTS pg_trgm")