content: """Step run versioning [360fa84718bf].
  
  Revision ID: 360fa84718bf
  Revises: 85289fea86ff
  Create Date: 2025-07-03 16:11:14.013214
  
  """
  
  import sqlalchemy as sa
  from alembic import op
  
  # revision identifiers, used by Alembic.
  revision = "360fa84718bf"
  down_revision = "85289fea86ff"
  branch_labels = None
  depends_on = None
  
  
  def upgrade() -> None:
      """Upgrade database schema and/or data, creating a new revision."""
      # ### commands auto generated by Alembic - please adjust! ###
      with op.batch_alter_table("step_run", schema=None) as batch_op:
          batch_op.add_column(sa.Column("version", sa.Integer(), nullable=True))
          batch_op.add_column(
              sa.Column("is_retriable", sa.Boolean(), nullable=True)
          )
          batch_op.drop_constraint(
              "unique_step_name_for_pipeline_run", type_="unique"
          )
          batch_op.create_unique_constraint(
              "unique_step_name_for_pipeline_run",
              ["name", "pipeline_run_id", "version"],
          )
  
      op.execute(
          sa.text("UPDATE step_run SET version = 1 WHERE version IS NULL")
      )
      op.execute(
          sa.text(
              "UPDATE step_run SET is_retriable = FALSE WHERE is_retriable IS NULL"
          )
      )
  
      with op.batch_alter_table("step_run", schema=None) as batch_op:
          batch_op.alter_column(
              "version", existing_type=sa.Integer(), nullable=False
          )
          batch_op.alter_column(
              "is_retriable", existing_type=sa.Boolean(), nullable=False
          )
  
      # ### end Alembic commands ###
  
  
  def downgrade() -> None:
      """Downgrade database schema and/or data back to the previous revision.
  
      Raises:
          NotImplementedError: Downgrade not supported.
      """
      # ### commands auto generated by Alembic - please adjust! ###
      raise NotImplementedError("Downgrade not supported")
  
      # ### end Alembic commands ###
  