text: """2nd Migration
  
  Revision ID: 4a7cacaa890b
  Revises: d2f0ee5217c1
  Create Date: 2020-05-05 22:30:18.229786
  
  """
  from alembic import op
  import sqlalchemy as sa
  
  
  # revision identifiers, used by Alembic.
  revision = '4a7cacaa890b'
  down_revision = 'd2f0ee5217c1'
  branch_labels = None
  depends_on = None
  
  
  def upgrade():
      # ### commands auto generated by Alembic - please adjust! ###
      op.drop_constraint('users_email_key', 'users', type_='unique')
      # ### end Alembic commands ###
  
  
  def downgrade():
      # ### commands auto generated by Alembic - please adjust! ###
      op.create_unique_constraint('users_email_key', 'users', ['email'])
      # ### end Alembic commands ###
  