Division by zero in the query planner.
|User & Date:||drh 2019-08-15 14:28:04|
- Change foundin to "3.29.0"
- Change icomment to:
The following SQL causes a division by zero in the query planner:
ANALYZE; CREATE TABLE t1(a PRIMARY KEY); INSERT INTO sqlite_stat1 VALUES('t1',null,'sz=0'); ANALYZE sqlite_master; SELECT 0 FROM t1 WHERE a IN(1,2,3);
The problem is the sz=0 parameter on the sqlite_stat1 entry for the t1 table. The value of sz needs to be 2 or greater, and this is not enforced. The problem was introduced by check-in [90e36676476e8db0] on 2014-04-30 and first appeared in version 3.8.5.
This problem was reported on the SQLite mailing list by Xingwei Lin.
- Change login to "drh"
- Change mimetype to "text/x-fossil-wiki"
- Change severity to "Severe"
- Change status to "Open"
- Change title to "Division by zero in the query planner."
- Change type to "Code_Defect"