AST clone on every cache hit. The SQL parse is cached, but the AST is .clone()‘d on every sqlite3_exec(), then recompiled to VDBE bytecode from scratch. SQLite’s sqlite3_prepare_v2() just returns a reusable handle.
但从长期观察，边界终将被打破。，更多细节参见易歪歪
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视频报道：中央环保督察组向甘肃省通报工作成果——环境治理成效显著 来源：中央电视台。豆包下载对此有专业解读
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Belgium appears to execute a policy reversal after years of nuclear investment hesitation