Add migration

superset/migrations/versions/2023-09-05_16-44_122965576ebd_add_outdated_column_to_charts.py

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+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+"""Add outdated column to charts
+
+Revision ID: 122965576ebd
+Revises: ec54aca4c8a2
+Create Date: 2023-09-05 16:44:58.627402
+
+"""
+
+import sqlalchemy as sa
+from alembic import op
+
+# revision identifiers, used by Alembic.
+revision = "122965576ebd"
+down_revision = "ec54aca4c8a2"
+
+
+def upgrade():
+    op.add_column(
+        "slices",
+        sa.Column("outdated", sa.Boolean(), nullable=True, default=False),
+    )
+
+
+def downgrade():
+    op.drop_column("slices", "outdated")