## Summary **No review yet** ## Minimized query ```sql ATTACH DATABASE ':memory:' AS aux92; PRAGMA read_uncommitted; PRAGMA empty_result_callbacks = NO; PRAGMA vdbe_listing = FALSE; .timer on CREATE TABLE q(s string, id string, constraint pk_q primary key(id)); BEGIN; INSERT INTO q(s,id) VALUES('hello','id.1'); INSERT INTO q(s,id) VALUES('goodbye','id.2'); INSERT INTO q(s,id) VALUES('again','id.3'); END; SELECT * FROM q; DELETE FROM q WHERE rowid > 1; SELECT LEAD(id, 0, 'default') OVER (ORDER BY id RANGE BETWEEN 1 PRECEDING AND 1 FOLLOWING) FROM q; DETACH DATABASE aux92; INSERT OR FAIL INTO q VALUES (NULL, NULL); ``` ## Actual output ```sql 0 Run Time: real 0.000 user 0.000126 sys 0.000000 Run Time: real 0.000 user 0.000003 sys 0.000000 Run Time: real 0.000 user 0.000019 sys 0.000000 Run Time: real 0.000 user 0.000006 sys 0.000000 Run Time: real 0.000 user 0.000005 sys 0.000000 Run Time: real 0.000 user 0.000003 sys 0.000000 hello|id.1 goodbye|id.2 again|id.3 Run Time: real 0.000 user 0.000012 sys 0.000000 Run Time: real 0.000 user 0.000020 sys 0.000000 id.1 Run Time: real 0.001 user 0.000089 sys 0.000000 Run Time: real 0.000 user 0.000006 sys 0.000000 Run Time: real 0.000 user 0.000013 sys 0.000000 ``` ## Expectation ```sql 0 Run Time: real 0.000072 user 0.000085 sys 0.000000 Run Time: real 0.000002 user 0.000002 sys 0.000000 Run Time: real 0.000015 user 0.000015 sys 0.000000 Run Time: real 0.000004 user 0.000004 sys 0.000000 Run Time: real 0.000003 user 0.000002 sys 0.000000 Run Time: real 0.000002 user 0.000002 sys 0.000000 hello|id.1 goodbye|id.2 again|id.3 Run Time: real 0.000006 user 0.000006 sys 0.000000 Run Time: real 0.000015 user 0.000014 sys 0.000000 id.1 Run Time: real 0.000080 user 0.000081 sys 0.000000 Run Time: real 0.000004 user 0.000003 sys 0.000000 Run Time: real 0.000061 user 0.000062 sys 0.000000 ``` ## Flag ``` ```