new_contents: """Index Build.project_id,date_created
  
  Revision ID: f2c8d15416b
  Revises: 152c9c780e
  Create Date: 2013-12-03 15:54:09.488066
  
  """
  
  # revision identifiers, used by Alembic.
  revision = 'f2c8d15416b'
  down_revision = '152c9c780e'
  
  from alembic import op
  
  
  def upgrade():
      op.create_index('idx_build_project_date', 'build', ['project_id', 'date_created'])
  
  
  def downgrade():
      pass
  
subject: Add Build(project_id,date_created) index