new_contents: """empty message
  
  Revision ID: 62d4d27afcf
  Revises: 453729c2bc21
  Create Date: 2014-11-03 14:52:53.884479
  
  """
  
  # revision identifiers, used by Alembic.
  revision = '62d4d27afcf'
  down_revision = '453729c2bc21'
  
  from alembic import op
  import sqlalchemy as sa
  
  
  def upgrade():
      ### commands auto generated by Alembic - please adjust! ###
      op.add_column('dlannotations', sa.Column('selected_texts_json', sa.Text(convert_unicode=True), nullable=True))
      ### end Alembic commands ###
  
  
  def downgrade():
      ### commands auto generated by Alembic - please adjust! ###
      op.drop_column('dlannotations', 'selected_texts_json')
      ### end Alembic commands ###
  
subject: Add migration to add selected_texts_json column.