text: """Add extra column to Query
  
  Revision ID: 0b1f1ab473c0
  Revises: 55e910a74826
  Create Date: 2018-11-05 08:42:56.181012
  
  """
  from alembic import op
  import sqlalchemy as sa
  
  # revision identifiers, used by Alembic.
  revision = '0b1f1ab473c0'
  down_revision = '55e910a74826'
  
  
  def upgrade():
      op.add_column('query', sa.Column('extra_json', sa.Text(), nullable=True))
  
  
  def downgrade():
      op.drop_column('query', 'extra_json')
  