message: integer doesn't need conversion
  bigint did, but I switched away from that.
diff: @@ -307,17 +307,14 @@ class Updater {
  }
  }
  + // This doesn't need to do much yet because we only support the
  + // simplest types. But other types will need to do more here.
  _convertValue(pgValue, fieldType) {
  switch(fieldType) {
  case '@cardstack/core-types::string':
  case '@cardstack/core-types::boolean':
  - return pgValue;
  case '@cardstack/core-types::integer':
  - if (pgValue == null) {
  - return null;
  - } else {
  - return parseInt(pgValue, 10);
  - }
  + return pgValue;
  }
  }
  