mergeContext method
Implementation
void mergeContext(api.TxnContext src) {
if (src != null) {
if (context!.startTs == 0) {
context!.startTs = src.startTs;
}
if (context!.startTs != src.startTs) {
throw Exception("StartTs mismatch");
}
context!.keys.addAll(src.keys);
context!.preds.addAll(src.preds);
}
}