new_contents: from alembic import op
  import sqlalchemy as sa
  
  
  """empty message
  
  Revision ID: a679f493bcdd
  Revises: 68c153cf6a02
  Create Date: 2017-09-28 12:31:12.590545
  
  """
  
  # revision identifiers, used by Alembic.
  revision = 'a679f493bcdd'
  down_revision = '68c153cf6a02'
  
  
  def upgrade():
      # ### commands auto generated by Alembic - please adjust! ###
      op.add_column('scheduled_jobs', sa.Column('last_status', sa.Text(), nullable=True))
      # ### end Alembic commands ###
  
  
  def downgrade():
      # ### commands auto generated by Alembic - please adjust! ###
      op.drop_column('scheduled_jobs', 'last_status')
      # ### end Alembic commands ###
  
subject: add migration