Function getDistributedTransactionIdentifier

src/backend/cdb/cdbtm.c:179–196

}

bool
getDistributedTransactionIdentifier(char *id)
{
	Assert(MyTmGxactLocal != NULL);

	if (isDtxContext() && MyTmGxact->gxid != InvalidDistributedTransactionId)
	{
		/*
		 * The length check here requires the identifer have a trailing
		 * NUL character.
		 */
		dtxFormGid(id, MyTmGxact->gxid);
		return true;
	}

	MemSet(id, 0, TMGIDSIZE);
	return false;
}

bool
isPreparedDtxTransaction(void)