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"""change annotation structure
Revision ID: 878e8193ae4d
Revises: 37a7d932fc02
Create Date: 2019-03-26 12:53:27.069030
"""
from alembic import op
import sqlalchemy as sa
# revision identifiers, used by Alembic.
revision = '878e8193ae4d'
down_revision = '37a7d932fc02'
branch_labels = None
depends_on = None
def upgrade():
# ### commands auto generated by Alembic - please adjust! ###
with op.batch_alter_table("annotation") as batch_op:
batch_op.drop_column('time_start')
batch_op.drop_column('time_end')
# ### end Alembic commands ###
def downgrade():
# ### commands auto generated by Alembic - please adjust! ###
op.add_column('annotation', sa.Column('time_end', sa.INTEGER(), nullable=True))
op.add_column('annotation', sa.Column('time_start', sa.INTEGER(), nullable=True))
# ### end Alembic commands ###
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