SQLite does the same autocommit, but uses fdatasync(2) on Linux, which skips syncing file metadata when compiled with HAVE_FDATASYNC (the default). This is roughly 1.6 to 2.7 times cheaper on NVMe SSDs. SQLite’s per-statement overhead is also minimal: no schema reload, no AST clone, no VDBE recompile. The Rust reimplementation does all three on every call.
Async functions combine naturally with Result and the ? operator from Chapter 10. The await resolves the future, and ? unwraps the result:
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，这一点在谷歌中也有详细论述
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