new_contents: """agency_description to agency_request_summary
  
  Revision ID: cf62ec87d973
  Revises: 971f341c0204
  Create Date: 2017-05-31 16:29:17.341283
  
  """
  
  # revision identifiers, used by Alembic.
  revision = 'cf62ec87d973'
  down_revision = '971f341c0204'
  
  from alembic import op
  import sqlalchemy as sa
  from sqlalchemy.dialects import postgresql
  
  def upgrade():
      ### commands auto generated by Alembic - please adjust! ###
      op.add_column('requests', sa.Column('agency_request_summary', sa.String(length=5000), nullable=True))
      op.add_column('requests', sa.Column('agency_request_summary_release_date', sa.DateTime(), nullable=True))
      op.drop_column('requests', 'agency_description_release_date')
      op.drop_column('requests', 'agency_description')
      ### end Alembic commands ###
  
  
  def downgrade():
      ### commands auto generated by Alembic - please adjust! ###
      op.add_column('requests', sa.Column('agency_description', sa.VARCHAR(length=5000), autoincrement=False, nullable=True))
      op.add_column('requests', sa.Column('agency_description_release_date', postgresql.TIMESTAMP(), autoincrement=False, nullable=True))
      op.drop_column('requests', 'agency_request_summary_release_date')
      op.drop_column('requests', 'agency_request_summary')
      ### end Alembic commands ###
  
subject: Add Database Migration for Column Rename