/// @brief Reference counter for transactions.
///
/// It precludes starting and committing nested transactions. PostgreSQL
- /// logs but ignores BEGINs issued from within an ongoing transaction.
- /// We do not want to start new transactions when one is already
- /// in progress.
+ /// logs but ignores START TRANSACTIONs (or BEGINs) issued from within an
+ /// ongoing transaction. We do not want to start new transactions when one
+ /// is already in progress.
int transaction_ref_count_;
};