updated index

backend/app/alembic/versions/3d3e62ca614e_index_can_be_null.py

@@ -0,0 +1,29 @@
+"""index can be null
+
+Revision ID: 3d3e62ca614e
+Revises: 0fae792dfdd0
+Create Date: 2025-01-22 11:25:55.056526
+
+"""
+from alembic import op
+import sqlalchemy as sa
+import sqlmodel.sql.sqltypes
+
+
+# revision identifiers, used by Alembic.
+revision = '3d3e62ca614e'
+down_revision = '0fae792dfdd0'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.add_column('course', sa.Column('index', sa.Integer(), nullable=True))
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_column('course', 'index')
+    # ### end Alembic commands ###