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Plan EndpointPOST /v1/projects/-/plans
Sheet EndpointPOST /v1/projects/-/sheets
Plan contains one or multiple change statements and dictate how they are grouped and ordered. The plan layouts how to execute the change statements.
  • Sheet. Plan references change statements via the Sheet object. Each Sheet contains one or more change statements.
  • Step. Plan orchestrates the order via Step. Each Step specifies one or more changes units. A change unit specifies the SQL statements via Sheet and the target database.
Code sample: https://github.com/bytebase/create-plan-from-release-action/blob/main/src/main.ts Inside the plan, create one or more sheets if needed. Then you orchestrate the order via Steps: 
{
  "steps": [
    {
      "title": "step 1",
      "specs": [
        {
          "earliestAllowedTime": null,
          "id": "083c1c01-a0a6-485d-ae60-d6de2760ca4f",
          "dependsOnSpecs": [],
          "changeDatabaseConfig": {
            "target": "instances/oracle/databases/db1",
            "sheet": "projects/sample/sheets/741",
            "type": "MIGRATE",
            "schemaVersion": "",
            "ghostFlags": {},
            "preUpdateBackupDetail": {
              "database": ""
            }
          }
        },
        {
          "earliestAllowedTime": null,
          "id": "faa54bb9-0bb3-42bf-aa10-cffc73e19e33",
          // Wait for the previous task to finish
          "dependsOnSpecs": ["083c1c01-a0a6-485d-ae60-d6de2760ca4f"],
          "changeDatabaseConfig": {
            "target": "instances/oracle/databases/db1",
            "sheet": "projects/sample/sheets/742",
            "type": "MIGRATE",
            "schemaVersion": "",
            "ghostFlags": {},
            "preUpdateBackupDetail": {
              "database": ""
            }
          }
        }
      ]
    },
    {
      "title": "step 2",
      "specs": [{...}, {...}]
    }
  ]
}
Each spec corresponds to a task. A task is a single change unit. Tasks run in the following order:
  • Tasks from the late stage must wait until all the tasks from the previous stage reach to the end state.
  • For tasks belong to the same stage:
    • Tasks changing the same database run sequentially. A failed task will not block the following task.
    • Tasks changing different databases run concurrently.
If you want to enforce strict running order inside a step/stage. You can specify dependsOnSpecs with the previous task.