text: """Remove invalid characters from user.name
  
  Revision ID: 2deadfe1fc65
  Revises: e3e16ffcd92c
  Create Date: 2020-08-09 17:24:25.603465
  
  """
  from alembic import op
  import sqlalchemy as sa
  
  
  # revision identifiers, used by Alembic.
  revision = "2deadfe1fc65"
  down_revision = "e3e16ffcd92c"
  branch_labels = None
  depends_on = None
  
  
  def upgrade():
      op.execute(
          """UPDATE "user" SET name = REPLACE(name, '`', '') WHERE name like '%`%'"""
      )
  
  
  def downgrade():
      pass
  