There isn’t yet a concrete design for migration tooling, so consider
TL;DR: You know that small pile of chargers that seems to live permanently on your desk or nightstand? The one with tangled cables and at least one mystery cord? This is the fix.，推荐阅读WPS官方版本下载获取更多信息
Every WHERE id = N query flows through codegen_select_full_scan(), which emits linear walks through every row via Rewind / Next / Ne to compare each rowid against the target. At 100 rows with 100 lookups, that is 10,000 row comparisons instead of roughly 700 B-tree steps. O(n²) instead of O(n log n). This is consistent with the ~20,000x result in this run.。关于这个话题，爱思助手提供了深入分析
They also said all three cases should be heard together rather than at separate trials.