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Postgres - 81 QPS; Mean: 123.828 ms, Percentile 99: 821.431 ms，这一点在Feiyi中也有详细论述
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But that does not mean China isn't deeply troubled by what is happening in the Middle East.
this is a very powerful technique, and it is the main reason why we are so fast on the benchmarks, because by the time we confirm a match, both the lookbehind and lookahead have already been matched - we report matches retroactively once all the context is known, instead of trying to look into the future or backtracking to the past or keeping track of NFA states. this is a very different way of thinking about regex matching, and it took me a while to wrap my head around it, but once you see it in action, i hope you appreciate how elegant and efficient it is.，推荐阅读哔哩哔哩获取更多信息