Ticket Hash: | 82ac75ba0093e5dcd606150b85dff5f8bdcd3dec | |||
Title: | Incorrect result for query with 0 >= t0.c0 AND t0.c0 = v0.c0 condition | |||
Status: | Fixed | Type: | Code_Defect | |
Severity: | Important | Priority: | Low | |
Subsystem: | Unknown | Resolution: | Fixed | |
Last Modified: | 2020-01-08 01:44:07 | |||
Version Found In: | 3.30.0 | |||
User Comments: | ||||
mrigger added on 2020-01-07 21:41:37:
Consider the following test case: CREATE TABLE t0(c0); INSERT INTO t0 VALUES('0'); CREATE VIEW v0(c0) AS SELECT CAST(0 AS INT) FROM t0; SELECT * FROM t0, v0 WHERE 0 >= t0.c0 AND t0.c0 = v0.c0; -- unexpected: fetches row Unexpectedly, the query fetches a row. When removing the AND and its right expression, no row is fetched: SELECT * FROM t0, v0 WHERE 0 >= t0.c0; -- fetches no row Also the following expression evaluates to FALSE: SELECT 0 >= t0.c0 AND t0.c0 = v0.c0 FROM t0, v0; -- 0 |