text: """empty message
  
  Revision ID: 5d945184c694
  Revises: 468f4da92047
  Create Date: 2017-11-29 15:47:53.072334
  
  """
  from alembic import op
  import sqlalchemy as sa
  
  
  # revision identifiers, used by Alembic.
  revision = '5d945184c694'
  down_revision = '468f4da92047'
  branch_labels = None
  depends_on = None
  
  
  def upgrade():
      # ### commands auto generated by Alembic - please adjust! ###
      op.add_column('t_users', sa.Column('f_delete', sa.Integer(), nullable=False))
      op.drop_index('ix_t_users_f_userName', table_name='t_users')
      op.create_index(op.f('ix_t_users_f_userName'), 't_users', ['f_userName'], unique=True)
      # ### end Alembic commands ###
  
  
  def downgrade():
      # ### commands auto generated by Alembic - please adjust! ###
      op.drop_index(op.f('ix_t_users_f_userName'), table_name='t_users')
      op.create_index('ix_t_users_f_userName', 't_users', ['f_userName'], unique=True)
      op.drop_column('t_users', 'f_delete')
      # ### end Alembic commands ###
  