Subject Re: [Firebird-general] Re: Just a few words about Firebird 3.0 performance.
Author Dimitry Sibiryakov
10.06.2016 11:55, un_spoken@... [Firebird-general] wrote:
> I dont understand you: "undo" log?

Yes: in Firebird every transaction keeps undo log in RAM. It is used to undo all
operations made in transaction on rollback. When the log grows too big, it is dropped and
rollback is performed "in a hard way".

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WBR, SD.