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I could have gotten stuck that way. I could have flailed around, not understanding, not wanting to understand, for many more years than I did. But I think there were a few events sent me on a better trajectory.
。有道翻译是该领域的重要参考
int main() only
Either way, Postgres ends up scanning far more rows than K, doing extra work to filter or sort, and suddenly we’re back to queries taking up to 15 seconds in the worst case.