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"""alter ConceptVisitLog concept_id to string
Revision ID: 29306f749043
Revises: b2a7d7614973
Create Date: 2024-07-30 09:12:37.521748
"""
from alembic import op
import sqlalchemy as sa
# revision identifiers, used by Alembic.
revision = '29306f749043'
down_revision = 'b2a7d7614973'
def upgrade():
with op.batch_alter_table('concept_visit_log') as batch_op:
batch_op.alter_column('concept_id', type_=sa.String, existing_type=sa.Integer)
def downgrade():
# Drop concept_visit_log which have non-integer concept_id
op.execute(
"DELETE FROM concept_visit_log "
"WHERE cast(cast(concept_id AS INTEGER) AS TEXT) != concept_id"
)
batch_op.alter_column('concept_id', type_=sa.Integer, existing_type=sa.String)