SQLite

The following SQL results in a segfault due to an attempt to access a non-existent cursor:

REATE TABLE T1(a TEXT);
INSERT INTO T1(a) VALUES ('aaa');
CREATE TABLE T2(a TEXT PRIMARY KEY,n INT UNIQUE);
INSERT INTO T2(a, n) VALUES('aaa',0);
SELECT * FROM T2
WHERE (a,n) IN (SELECT T1.a, V.n FROM T1 JOIN (SELECT * FROM (SELECT 0 n)) V);

The problem might be caused by query flattening on the V table of the join on the RHS of the vector IN operator, but this is not a definitive diagnosis.