@@ -0,0 +1,634 @@
+%22%22%22empty message%0A%0ARevision ID: 3a7cac1b3adc%0ARevises: 4691e59fa601%0ACreate Date: 2015-03-22 23:44:54.269041%0A%0A%22%22%22%0A%0A# revision identifiers, used by Alembic.%0Arevision = '3a7cac1b3adc'%0Adown_revision = '4691e59fa601'%0A%0Afrom alembic import op%0Aimport sqlalchemy as sa%0A%0A%0Adef upgrade():%0A    ### commands auto generated by Alembic - please adjust! ###%0A    op.drop_column('stream', 'viewer_num')%0A    ### end Alembic commands ###%0A%0A%0Adef downgrade():%0A    ### commands auto generated by Alembic - please adjust! ###%0A    op.add_column('stream', sa.Column('viewer_num', sa.INTEGER(), autoincrement=False, nullable=True))%0A    ### end Alembic commands ###%0A

add missing migration for viewers column