add alembic schema changes for the recent constraint.

migrations/versions/3313ca078f4e_demand_hourly_pa_ferc714_report_date_.py

@@ -0,0 +1,35 @@
+"""demand_hourly_pa_ferc714.report_date can't be null
+
+Revision ID: 3313ca078f4e
+Revises: 1ceb9897fd34
+Create Date: 2023-11-02 15:48:50.477585
+
+"""
+import sqlalchemy as sa
+from alembic import op
+
+# revision identifiers, used by Alembic.
+revision = '3313ca078f4e'
+down_revision = '1ceb9897fd34'
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    # ### commands auto generated by Alembic - please adjust! ###
+    with op.batch_alter_table('demand_hourly_pa_ferc714', schema=None) as batch_op:
+        batch_op.alter_column('report_date',
+               existing_type=sa.DATE(),
+               nullable=False)
+
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    # ### commands auto generated by Alembic - please adjust! ###
+    with op.batch_alter_table('demand_hourly_pa_ferc714', schema=None) as batch_op:
+        batch_op.alter_column('report_date',
+               existing_type=sa.DATE(),
+               nullable=True)
+
+    # ### end Alembic commands ###