text: from sqlalchemy import Index, MetaData, Table, Column, UnicodeText
  
  meta = MetaData()
  
  def upgrade(migrate_engine):
      meta.bind = migrate_engine
  
      t = Table("scopus_publication", meta, autoload=True)
  
      t.c.publication.drop()
  
  
  def downgrade(migrate_engine):
      meta.bind = migrate_engine
      t = Table("scopus_publication", meta, autoload=True)
  
      publication = Column("publication", UnicodeText)
      publication.create(t)
  