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+%22%22%22 Add session_id to Hail modeel%0A%0ARevision ID: 1de37f781680%0ARevises: f8c0bde5d368%0ACreate Date: 2020-02-24 16:14:21.149350%0A%0A%22%22%22%0A%0A# revision identifiers, used by Alembic.%0Arevision = '1de37f781680'%0Adown_revision = 'f8c0bde5d368'%0A%0Afrom alembic import op%0Aimport sqlalchemy as sa%0A%0A%0Adef upgrade():%0A    op.add_column('hail', sa.Column('session_id', sa.String(), server_default='', nullable=False))%0A%0A%0Adef downgrade():%0A    op.drop_column('hail', 'session_id')%0A

Add session_id migration