old_contents: """resize_email_text
  
  Revision ID: 38eeba774226
  Revises: eb39ac93fc39
  Create Date: 2020-03-11 09:46:29.112836
  
  """
  
  # revision identifiers, used by Alembic.
  revision = '38eeba774226'
  down_revision = 'eb39ac93fc39'
  
  from alembic import op
  import sqlalchemy as sa
  
  from knowledge_repo.utils.types import MediumText
  
  
  def upgrade():
      with op.batch_alter_table('emails') as batch_op:
          batch_op.alter_column(
              'text',
              existing_type=sa.Text(),
              type_=MediumText(),
              existing_nullable=True,
          )
  
  
  def downgrade():
      with op.batch_alter_table('emails') as batch_op:
          batch_op.alter_column(
              'text',
              existing_type=MediumText(),
              type_=sa.Text(),
              existing_nullable=True,
          )
  
new_contents: """resize_email_text
  
  Revision ID: 38eeba774226
  Revises: eb39ac93fc39
  Create Date: 2020-03-11 09:46:29.112836
  
  """
  
  # revision identifiers, used by Alembic.
  from knowledge_repo.utils.types import MediumText
  import sqlalchemy as sa
  from alembic import op
  revision = '38eeba774226'
  down_revision = 'eb39ac93fc39'
  
  
  def upgrade():
      with op.batch_alter_table('emails') as batch_op:
          batch_op.alter_column(
              'text',
              existing_type=sa.Text(),
              type_=MediumText(),
              existing_nullable=True,
          )
  
  
  def downgrade():
      with op.batch_alter_table('emails') as batch_op:
          batch_op.alter_column(
              'text',
              existing_type=MediumText(),
              type_=sa.Text(),
              existing_nullable=True,
          )
  
subject: update db migration