"""New navigation policy requires rebuilding existing indexes explicitly.

Revision ID: 0009
Revises: 0008
"""
from alembic import op

revision = "0009"
down_revision = "0008"
branch_labels = None
depends_on = None


def upgrade():
    with op.batch_alter_table("knowledge_documents") as batch:
        batch.alter_column("index_version", server_default="5")


def downgrade():
    with op.batch_alter_table("knowledge_documents") as batch:
        batch.alter_column("index_version", server_default="4")