I am not sure if i am posting in the right place - correct me if I am wrong.
The following is not precise:
13.2.1. Read Committed Isolation Level
"Also note that two successive SELECT commands can see different data, even
though they are within a single transaction, if other transactions commit
changes during execution of the first SELECT."
I think it should be re-worded as follows
"Also note that two successive SELECT commands can see different data, even
though they are within a single transaction, if other transactions commit
after the first SELECT starts, and before the second SELECT starts."
The reason: there could be other DML running between these two SELECTs.
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