Closed XuPeng-SH closed 2 years ago
In 0.5.0, append nodes are organized as below
---------+--------+--------- StartRow|EndRow |TxnMeta ---------+--------+--------- 0 | 10 | (1:1:2) 10 | 20 | (2:3:4) 20 | 30 | (3:5:6)
Since in the 1PC scenario, the row id and transaction commit ts are monotonic consistent. So some read optimizations are made, but in the case of 2pc, this monotonicity is not guaranteed, so some of the previous optimizations do not work.
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implemented by #4969
XuPeng-SH
commented
2 years ago
Parent Issue
4628
Detail of Subtask
In 0.5.0, append nodes are organized as below
Since in the 1PC scenario, the row id and transaction commit ts are monotonic consistent. So some read optimizations are made, but in the case of 2pc, this monotonicity is not guaranteed, so some of the previous optimizations do not work.
Describe implementation you've considered
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Additional information
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