| Ticket Hash: | ce22a07731530118bb8ee6433474d7caf36b170c | ||
| Title: | NULL WHERE condition unexpectedly results in row being fetched | ||
| Status: | Fixed | Type: | Code_Defect |
| Severity: | Important | Priority: | Immediate |
| Subsystem: | Unknown | Resolution: | Fixed |
| Last Modified: | 2019-11-06 17:31:43 | ||
| Version Found In: | 3.30.0 | ||
| User Comments: | ||||
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mrigger added on 2019-11-06 15:16:14:
Consider the following test case: CREATE TABLE t0 (c0 GENERATED ALWAYS AS (1), c1 UNIQUE, c2 UNIQUE); INSERT INTO t0(c1) VALUES (1); SELECT * FROM t0 WHERE 0 = t0.c2 OR t0.c1 BETWEEN t0.c2 AND 1; -- unexpected: row is fetched Unexpectedly, a row is fetched, even though the condition should evaluate to NULL: SELECT 0 = t0.c2 OR t0.c1 BETWEEN t0.c2 AND 1 FROM t0; -- NULL | ||||