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特朗普5日曾称,他“必须亲自参与”选定伊朗下一任领导人。特朗普当天表示,他不会接受伊朗已故最高领袖哈梅内伊的儿子担任伊朗新领导人。他表示,“我必须亲自参与任命”。(央视新闻)。新收录的资料对此有专业解读
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CREATE TABLE test (id INTEGER PRIMARY KEY, name TEXT, value REAL);the column id becomes an alias for the internal rowid — the B-tree key itself. A query like WHERE id = 5 resolves to a direct B-tree search and scales O(log n). (I already wrote a TLDR piece about how B-trees work here.) The SQLite query planner documentation states: “the time required to look up the desired row is proportional to logN rather than being proportional to N as in a full table scan.” This is not an optimization. It is a fundamental design decision in SQLite’s query optimizer: