| Ticket Hash: | 135c9da7513e5a97c2b78b20d528ec8f77fe9b05 | |||
| Title: | Comparison of row values with COLLATE NOCASE yields incorrect result | |||
| Status: | Fixed | Type: | Code_Defect | |
| Severity: | Important | Priority: | Immediate | |
| Subsystem: | Unknown | Resolution: | Fixed | |
| Last Modified: | 2019-10-23 18:09:50 | |||
| Version Found In: | 3.30.0 | |||
| User Comments: | ||||
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mrigger added on 2019-10-23 16:46:41:
Consider the following test case:
CREATE TABLE t0(c0 UNIQUE);
INSERT INTO t0(c0) VALUES('a');
SELECT * FROM t0 WHERE (t0.c0, 0) < ('B' COLLATE NOCASE, 0); -- unexpected: row is not fetched
Unexpectedly, the row is not fetched, even though the expression seems to evaluate to TRUE:
SELECT (t0.c0, 0) < ('B' COLLATE NOCASE, 0) FROM t0; -- 1
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