Function isSpecialUpdateKey

src/Controllers/DatabaseController.js:315–317

const specialKeysForUpdate = Object.keys(internalFields).filter(k => internalFields[k].masterWrite);

const isSpecialUpdateKey = key => {
  return specialKeysForUpdate.indexOf(key) >= 0;
};

function joinTableName(className, key) {
  return `_Join:${key}:${className}`;