| Ticket Hash: | af4556bb5c285c0800b837ab60802c707ec635c1 | |||
| Title: | Segfault while trying to prepare a malformed window-function query | |||
| Status: | Fixed | Type: | Code_Defect | |
| Severity: | Important | Priority: | Low | |
| Subsystem: | Unknown | Resolution: | Fixed | |
| Last Modified: | 2020-04-03 13:19:17 | |||
| Version Found In: | 3.31.1 | |||
| User Comments: | ||||
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drh added on 2020-04-03 11:45:52:
Henry Liu of Shenzhen Ankki Technologies Co.Ltd. sends in the following SQL snippet that causes a segfault while preparing. <blockquuote>
CREATE TABLE a(b, c);
SELECT c FROM a GROUP BY c
HAVING(SELECT(sum(b) OVER(ORDER BY b),
sum(b) OVER(PARTITION BY min(DISTINCT c), c ORDER BY b)));
This query has caused problems ever since support for window functions was added on 2018-06-30 (version 3.25.0). The problem expressed as an assertion fault up until check-in [712e47714863a8ed] (2019-08-10) at which point it began to segfault. | ||||