Add database migration that adds parameter fields to deployment schedules

src/prefect/server/database/_migrations/MIGRATION-NOTES.md

@@ -8,6 +8,10 @@ Each time a database migration is written, an entry is included here with:
 
 This gives us a history of changes and will create merge conflicts if two migrations are made at once, flagging situations where a branch needs to be updated before merging.
 
+# Add parameters column to deployment schedules
+SQLite: `67f886da208e`
+Postgres: `c163acd7e8e3`
+
 # Bring ORM models and migrations back in sync
 SQLite: `a49711513ad4`
 Postgres: `5d03c01be85e`

src/prefect/server/database/_migrations/versions/postgresql/2025_02_03_125146_c163acd7e8e3_add_parameters_column_to_deployment_.py

@@ -0,0 +1,34 @@
+"""Add parameters column to deployment schedules
+
+Revision ID: c163acd7e8e3
+Revises: 5d03c01be85e
+Create Date: 2025-02-03 12:51:46.641928
+
+"""
+
+import sqlalchemy as sa
+from alembic import op
+
+import prefect
+
+# revision identifiers, used by Alembic.
+revision = "c163acd7e8e3"
+down_revision = "5d03c01be85e"
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    op.add_column(
+        "deployment_schedule",
+        sa.Column(
+            "parameters",
+            prefect.server.utilities.database.JSON,
+            server_default="{}",
+            nullable=False,
+        ),
+    )
+
+
+def downgrade():
+    op.drop_column("deployment_schedule", "parameters")

src/prefect/server/database/_migrations/versions/sqlite/2025_02_03_125228_67f886da208e_add_parameters_column_to_deployment_.py

@@ -0,0 +1,34 @@
+"""Add parameters column to deployment schedules
+
+Revision ID: 67f886da208e
+Revises: a49711513ad4
+Create Date: 2025-02-03 12:52:28.370958
+
+"""
+
+import sqlalchemy as sa
+from alembic import op
+
+import prefect
+
+# revision identifiers, used by Alembic.
+revision = "67f886da208e"
+down_revision = "a49711513ad4"
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    op.add_column(
+        "deployment_schedule",
+        sa.Column(
+            "parameters",
+            prefect.server.utilities.database.JSON,
+            server_default="{}",
+            nullable=False,
+        ),
+    )
+
+
+def downgrade():
+    op.drop_column("deployment_schedule", "parameters")

src/prefect/server/database/orm_models.py

@@ -784,6 +784,9 @@ class DeploymentSchedule(Base):
     )
     active: Mapped[bool] = mapped_column(default=True)
     max_scheduled_runs: Mapped[Optional[int]]
+    parameters: Mapped[dict[str, Any]] = mapped_column(
+        JSON, server_default="{}", default=dict, nullable=False
+    )
 
 
 class Deployment(Base):