{
  "source": "练习目录\\lab\\data\\Chinook_Sqlite.sqlite",
  "sourceSha256": "bdf635be69850bd3be09c9a2dbeef7ddfb80036bd3ef3381383cd03b61e4a61a",
  "database": "练习目录\\lab\\chapter-18\\data\\calendar-teaching.sqlite",
  "databaseSha256": "3af4ac287ceb49739f8201bacb195a08fc074dd2d691d752650dcce3617ffa84",
  "invoiceRows": 412,
  "calendarRows": 378,
  "reportCutoffExclusive": "2012-11-16",
  "originalFields": [
    "InvoiceId",
    "InvoiceDate",
    "Total"
  ],
  "teachingExtensions": {
    "LoadedAt": "InvoiceDate + 2 natural days; synthetic technical ingestion time, NOT payment time",
    "calendar": "Complete civil dates; Monday-Friday workdays; ignores statutory holidays",
    "DataComplete": "Teaching declaration: complete before 2012-11-16, unconfirmed on/after it; not inferred from rows"
  },
  "originalDataUnchanged": true
}