| 123456789101112131415161718192021222324252627282930313233343536373839404142 | """add_qa_model_supportRevision ID: 8d2d099ceb74Revises: a5b56fb053efCreate Date: 2023-07-18 15:25:15.293438"""import sqlalchemy as safrom alembic import opfrom sqlalchemy.dialects import postgresql# revision identifiers, used by Alembic.revision = '8d2d099ceb74'down_revision = '7ce5a52e4eee'branch_labels = Nonedepends_on = Nonedef upgrade():    # ### commands auto generated by Alembic - please adjust! ###    with op.batch_alter_table('document_segments', schema=None) as batch_op:        batch_op.add_column(sa.Column('answer', sa.Text(), nullable=True))        batch_op.add_column(sa.Column('updated_by', postgresql.UUID(), nullable=True))        batch_op.add_column(sa.Column('updated_at', sa.DateTime(), server_default=sa.text('CURRENT_TIMESTAMP(0)'), nullable=False))    with op.batch_alter_table('documents', schema=None) as batch_op:        batch_op.add_column(sa.Column('doc_form', sa.String(length=255), server_default=sa.text("'text_model'::character varying"), nullable=False))    # ### end Alembic commands ###def downgrade():    # ### commands auto generated by Alembic - please adjust! ###    with op.batch_alter_table('documents', schema=None) as batch_op:        batch_op.drop_column('doc_form')    with op.batch_alter_table('document_segments', schema=None) as batch_op:        batch_op.drop_column('updated_at')        batch_op.drop_column('updated_by')        batch_op.drop_column('answer')    # ### end Alembic commands ###
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