## Summary **No review yet** ## Minimized query ```sql PRAGMA cell_size_check = 0; PRAGMA auto_vacuum = 2; .timer on PRAGMA defer_foreign_keys = FALSE; BEGIN DEFERRED TRANSACTION; -- glob('[!0-9]', 'a') ATTACH DATABASE (':memory:' || '') AS aux25; -- sqlite_compileoption_used({v}) -- NOCASE CREATE VIRTUAL TABLE t0 USING /**/ fts4("x", "y", /**/ "z"); DROP TABLE t0; DETACH DATABASE aux25; END TRANSACTION; PRAGMA defer_foreign_keys = FALSE; BEGIN DEFERRED TRANSACTION; -- glob('[!0-9]', 'a') ATTACH DATABASE (':memory:' || '') AS aux25; -- sqlite_compileoption_used({v}) -- NOCASE CREATE VIRTUAL TABLE t0 USING /**/ fts4("x", "y", "z"); DROP TABLE t0; DETACH DATABASE aux25; END TRANSACTION; PRAGMA defer_foreign_keys = FALSE; BEGIN DEFERRED TRANSACTION; -- glob('[!0-9]', 'a') ATTACH DATABASE (':memory:' || '') AS aux25; -- sqlite_compileoption_used({v}) -- NOCASE CREATE VIRTUAL TABLE t0 USING /**/ fts4("x", "y", "z"); DROP TABLE t0; DETACH DATABASE aux25; END TRANSACTION; CREATE TABLE T1 ( a INTEGER, b TEXT ); CREATE TABLE T2 ( a INTEGER, b TEXT ); INSERT INTO T1 VALUES (-(-(1)),'a'),(2,'b'); INSERT INTO T2 VALUES (1,'c'),(1,'d'); SELECT T1.b, ( SELECT GROUP_CONCAT(b,',') FROM T2 WHERE T2.a=T1.a ) AS c FROM T1; SELECT * FROM T1 WHERE (a, a) IN (SELECT a, a FROM T1); ALTER TABLE T2 DROP COLUMN b; UPDATE T1 SET b = json_object('k', b) WHERE b IS NOT NULL; ``` ## Actual output ```sql Run Time: real 0.000 user 0.000019 sys 0.000000 Run Time: real 0.000 user 0.000004 sys 0.000000 Run Time: real 0.000 user 0.000054 sys 0.000000 Run Time: real 0.000 user 0.000487 sys 0.000000 Run Time: real 0.000 user 0.000345 sys 0.000000 Run Time: real 0.000 user 0.000007 sys 0.000000 Run Time: real 0.000 user 0.000005 sys 0.000000 Run Time: real 0.000 user 0.000004 sys 0.000000 Run Time: real 0.000 user 0.000002 sys 0.000000 Run Time: real 0.001 user 0.000036 sys 0.000000 Run Time: real 0.000 user 0.000369 sys 0.000000 Run Time: real 0.000 user 0.000241 sys 0.000000 Run Time: real 0.000 user 0.000006 sys 0.000000 Run Time: real 0.000 user 0.000004 sys 0.000000 Run Time: real 0.000 user 0.000003 sys 0.000000 Run Time: real 0.000 user 0.000002 sys 0.000000 Run Time: real 0.000 user 0.000030 sys 0.000000 Run Time: real 0.001 user 0.000346 sys 0.000000 Run Time: real 0.000 user 0.000211 sys 0.000000 Run Time: real 0.000 user 0.000005 sys 0.000000 Run Time: real 0.000 user 0.000005 sys 0.000000 Run Time: real 0.000 user 0.000050 sys 0.000000 Run Time: real 0.000 user 0.000043 sys 0.000000 Run Time: real 0.000 user 0.000021 sys 0.000000 Run Time: real 0.000 user 0.000010 sys 0.000000 a|c,d b| Run Time: real 0.000 user 0.000050 sys 0.000000 1|a 2|b Run Time: real 0.000 user 0.000041 sys 0.000000 Run Time: real 0.001 user 0.000496 sys 0.000000 Run Time: real 0.000 user 0.000026 sys 0.000000 ``` ## Expectation ```sql Run Time: real 0.000002 user 0.000010 sys 0.000000 Run Time: real 0.000002 user 0.000002 sys 0.000000 Run Time: real 0.000025 user 0.000025 sys 0.000000 Run Time: real 0.000284 user 0.000283 sys 0.000000 Run Time: real 0.000203 user 0.000204 sys 0.000000 Run Time: real 0.000005 user 0.000005 sys 0.000000 Run Time: real 0.000003 user 0.000004 sys 0.000000 Run Time: real 0.000002 user 0.000002 sys 0.000000 Run Time: real 0.000001 user 0.000002 sys 0.000000 Run Time: real 0.000018 user 0.000018 sys 0.000000 Run Time: real 0.000175 user 0.000176 sys 0.000000 Run Time: real 0.000125 user 0.000126 sys 0.000000 Run Time: real 0.000003 user 0.000003 sys 0.000000 Run Time: real 0.000002 user 0.000003 sys 0.000000 Run Time: real 0.000001 user 0.000002 sys 0.000000 Run Time: real 0.000001 user 0.000001 sys 0.000000 Run Time: real 0.000013 user 0.000014 sys 0.000000 Run Time: real 0.000154 user 0.000155 sys 0.000000 Run Time: real 0.000102 user 0.000102 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 Run Time: real 0.000025 user 0.000026 sys 0.000000 Run Time: real 0.000021 user 0.000021 sys 0.000000 Run Time: real 0.000013 user 0.000014 sys 0.000000 Run Time: real 0.000006 user 0.000005 sys 0.000000 a|c,d b| Run Time: real 0.000029 user 0.000030 sys 0.000000 1|a 2|b Run Time: real 0.000029 user 0.000030 sys 0.000000 Run Time: real 0.000257 user 0.000257 sys 0.000000 Run Time: real 0.000022 user 0.000023 sys 0.000000 ``` ## Flag ``` ```