old_contents: """Person.email must be unique
  
  Revision ID: 2bf7c04016c9
  Revises: 2b709b655bf
  Create Date: 2013-07-24 02:16:06.282258
  
  """
  
  # revision identifiers, used by Alembic.
  revision = '2bf7c04016c9'
  down_revision = '2b709b655bf'
  
  from alembic import op
  import sqlalchemy as sa
  from sqlalchemy.dialects import mysql
  
  def upgrade():
      ### commands auto generated by Alembic - please adjust! ###
      op.create_unique_constraint('uq_people_email', 'people', ['email'])
      ### end Alembic commands ###
  
  
  def downgrade():
      ### commands auto generated by Alembic - please adjust! ###
      op.drop_constraint('uq_people_email', 'people', type_='unique')
      ### end Alembic commands ###
  
new_contents: """Person.email must be unique
  
  Revision ID: 2bf7c04016c9
  Revises: d3af6d071ef
  Create Date: 2013-07-24 02:16:06.282258
  
  """
  
  # revision identifiers, used by Alembic.
  revision = '2bf7c04016c9'
  down_revision = 'd3af6d071ef'
  
  from alembic import op
  import sqlalchemy as sa
  from sqlalchemy.dialects import mysql
  
  def upgrade():
      ### commands auto generated by Alembic - please adjust! ###
      op.create_unique_constraint('uq_people_email', 'people', ['email'])
      ### end Alembic commands ###
  
  
  def downgrade():
      ### commands auto generated by Alembic - please adjust! ###
      op.drop_constraint('uq_people_email', 'people', type_='unique')
      ### end Alembic commands ###
  
subject: Update 'down' version in migration due to merge