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Fix a bug in cursor hints that can cause references to tables that have not

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been opened.  Cursor hints are intended for use by COMDB2 only and should not
appear in production builds, so this should not be a factor for the vast
majority of users.

FossilOrigin-Name: d3370d59cffb7ab982d6c620c93d22aa6a9dc786e1c4af95ca8d45ff0b9b7d6f
This commit is contained in:
drh
2023-05-04 11:29:15 +00:00
parent 62b28db5c7
commit c1e40a3a02
5 changed files with 33 additions and 10 deletions
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20
test/cursorhint.test
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@ -191,4 +191,24 @@ do_execsql_test 6.0 {
HAVING (SELECT true FROM t6 AS aa LEFT JOIN t6 AS bb ON length(v1.a)>5);
} {abc 2 uvw 2}
# 2023-05-04 https://sqlite.org/forum/forumpost/29a47cf6d1
#
# codeCursorHint() should not walk expressions that have been optimized
# out and converted to TRUE or FALSE. This only comes up when compiling
# with SQLITE_ENABLE_CURSOR_HINTS
#
reset_db
do_execsql_test 7.1 {
CREATE TABLE t1(a INT PRIMARY KEY) WITHOUT ROWID;
CREATE TABLE t2(b INT PRIMARY KEY) WITHOUT ROWID;
CREATE TABLE t3(c INT PRIMARY KEY) WITHOUT ROWID;
INSERT INTO t1(a) VALUES(1),(2);
INSERT INTO t2(b) VALUES(4),(8);
INSERT INTO t3(c) VALUES(16),(32);
CREATE VIEW v4(d) AS SELECT c FROM t3;
SELECT * FROM t1 RIGHT JOIN t2 ON true JOIN v4 ON (d IS NULL);
} {}
finish_test