2022-01-16
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17:02 | • Closed ticket [9bf0e3e2e7]: -isolation configuration option plus 6 other changes artifact: 20abac9c73 user: jan.nijtmans | |
17:01 | Fix [9bf0e3e2e7]: -isolation configuration option check-in: e5b2587e70 user: jan.nijtmans tags: trunk, main | |
2020-02-16
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10:59 | • New ticket [9bf0e3e2e7] -isolation configuration option. artifact: 589c0502d3 user: anonymous | |
Ticket Hash: | 9bf0e3e2e71a07d57923a5b789cd78f8ac925fbc | |||
Title: | -isolation configuration option | |||
Status: | Closed | Type: | Code_Defect | |
Severity: | Severe | Priority: | Immediate | |
Subsystem: | not_specified | Resolution: | Fixed | |
Last Modified: | 2022-01-16 17:02:35 | |||
Version Found In: | 1.1.1 (latest trunk) | |||
User Comments: | ||||
anonymous added on 2020-02-16 10:59:28:
Currently the config handling for -isolation uses SQL commands like: SET TRANSACTION ISOLATION LEVEL READ SERIALIZABLE to effect the change. This only sets the transaction isolation level for the next transaction, after which it reverts to whatever the current session isolation level is. To set the session isolation level instead (which persists on this connection until changed to something else), it should use SET SESSION TRANSACTION ISOLATION LEVEL SERIALIZABLE instead. This fixes the failure on test tdbc::mysql-19.11, which uses SELECT '', LCASE(REPLACE(@@TX_ISOLATION, '-', '')) to interrogate the current session isolation level - @@tx_isolation reports the session transaction isolation level, and there is no way to report on the level set for the next transaction (which is what "SET TRANSACTION ISOLATION LEVEL foo" does) jan.nijtmans added on 2022-01-16 17:02:35: Fixed [e5b2587e70|here]. Thanks for the report! |