問題文
A mapping has been marked so that its transactions are applied as barriers, and the columns to compare for conflicts are being chosen for a table of many columns. Which single thread applies that transaction, and which choice runs lighter there?
選択肢
- The lowest of those still running, or else a set-apart one numbered zero, and naming the columns to bring in rather than the ones to be left out
- The highest of those still running, or a set-apart one numbered one, and naming the columns to leave out rather than the ones to bring in
- The lowest of those still running, or else a set-apart one numbered zero, and naming the columns to leave out rather than the ones to bring in
- The highest of those still running, or a set-apart one numbered one, and naming the columns to bring in rather than the ones to be left out