content: """Create Run Metadata Table [ec0d785ca296].
  
  Revision ID: ec0d785ca296
  Revises: 72722dee4686
  Create Date: 2022-12-16 11:34:17.005750
  
  """
  
  import sqlalchemy as sa
  import sqlmodel
  from alembic import op
  
  # revision identifiers, used by Alembic.
  revision = "ec0d785ca296"
  down_revision = "72722dee4686"
  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("pipeline_run", schema=None) as batch_op:
          batch_op.add_column(
              sa.Column("enable_artifact_metadata", sa.Boolean(), nullable=True)
          )
  
      with op.batch_alter_table("step_run", schema=None) as batch_op:
          batch_op.add_column(
              sa.Column("enable_artifact_metadata", sa.Boolean(), nullable=True)
          )
  
      op.create_table(
          "run_metadata",
          sa.Column(
              "pipeline_run_id", sqlmodel.sql.sqltypes.GUID(), nullable=True
          ),
          sa.Column("step_run_id", sqlmodel.sql.sqltypes.GUID(), nullable=True),
          sa.Column("artifact_id", sqlmodel.sql.sqltypes.GUID(), nullable=True),
          sa.Column(
              "stack_component_id", sqlmodel.sql.sqltypes.GUID(), nullable=True
          ),
          sa.Column("user_id", sqlmodel.sql.sqltypes.GUID(), nullable=True),
          sa.Column(
              "workspace_id", sqlmodel.sql.sqltypes.GUID(), nullable=False
          ),
          sa.Column("value", sa.TEXT(), nullable=False),
          sa.Column("id", sqlmodel.sql.sqltypes.GUID(), nullable=False),
          sa.Column("created", sa.DateTime(), nullable=False),
          sa.Column("updated", sa.DateTime(), nullable=False),
          sa.Column("key", sqlmodel.sql.sqltypes.AutoString(), nullable=False),
          sa.Column("type", sqlmodel.sql.sqltypes.AutoString(), nullable=False),
          sa.ForeignKeyConstraint(
              ["pipeline_run_id"],
              ["pipeline_run.id"],
              name="fk_run_metadata_pipeline_run_id_pipeline_run",
              ondelete="CASCADE",
          ),
          sa.ForeignKeyConstraint(
              ["workspace_id"],
              ["workspace.id"],
              name="fk_run_metadata_workspace_id_workspace",
              ondelete="CASCADE",
          ),
          sa.ForeignKeyConstraint(
              ["stack_component_id"],
              ["stack_component.id"],
              name="fk_run_metadata_stack_component_id_stack_component",
              ondelete="SET NULL",
          ),
          sa.ForeignKeyConstraint(
              ["step_run_id"],
              ["step_run.id"],
              name="fk_run_metadata_step_run_id_step_run",
              ondelete="CASCADE",
          ),
          sa.ForeignKeyConstraint(
              ["artifact_id"],
              ["artifact.id"],
              name="fk_run_metadata_artifact_id_artifact",
              ondelete="CASCADE",
          ),
          sa.ForeignKeyConstraint(
              ["user_id"],
              ["user.id"],
              name="fk_run_metadata_user_id_user",
              ondelete="SET NULL",
          ),
          sa.PrimaryKeyConstraint("id"),
      )
      # ### end Alembic commands ###
  
  
  def downgrade() -> None:
      """Downgrade database schema and/or data back to the previous revision."""
      # ### commands auto generated by Alembic - please adjust! ###
      with op.batch_alter_table("step_run", schema=None) as batch_op:
          batch_op.drop_column("enable_artifact_metadata")
  
      with op.batch_alter_table("pipeline_run", schema=None) as batch_op:
          batch_op.drop_column("enable_artifact_metadata")
  
      op.drop_table("run_metadata")
      # ### end Alembic commands ###
  