revision-id: 0ebc41a1c459263a30e2d2bc68348ed5bcdd59bd (v5.8-1032-g0ebc41a1c) parent(s): a196a4dd46d018a4815467e979fda46126ca5fa9 author: Sergei Petrunia committer: Sergei Petrunia timestamp: 2019-04-08 15:22:11 +0300 message: Added Comments --- utilities/transactions/transaction_util.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/utilities/transactions/transaction_util.h b/utilities/transactions/transaction_util.h index 7377874e6..99312cec9 100644 --- a/utilities/transactions/transaction_util.h +++ b/utilities/transactions/transaction_util.h @@ -23,7 +23,12 @@ struct TransactionKeyMapInfo { // Earliest sequence number that is relevant to this transaction for this key SequenceNumber seq; + // Number of writes done to this key uint32_t num_writes; + + // Number of locking reads done to the key. If both numbers of reads and + // writes go down to zero (happens for RollbackToSavePoint and + // UndoGetForUpdate) the key will be removed from tracking. uint32_t num_reads; bool exclusive;