提交给mysql java驱动的优化下个版本要发布了^_^

Unsubscribe from updates to this bug at: https://bugs.mysql.com/77681

 Updated by:  Daniel che chung So
 Reported by: OCA Admin
 Category:    Connector/J
 Severity:    S3 (Non-critical)
-Status:      In progress
+Status:      Closed
 Version:     5.1.x
 OS:          Any

[20 Aug 23:25] Daniel che chung So

Added the following entry to the Connector/J 5.1.37 changelog:

"The code for executing a REPLACE statement when
rewriteBatchedStatements=true has been refactored by putting multiple
batched statements into a single query, making it work more like an
INSERT statement. This increases the efficiency for running REPLACE
statements. Thanks to Jie Han for contributing the patch."

------------------------------------------------------------------------

[21 Jul 9:17] jie han

we have billions records transfer from offline to online ,  rewrite
replace statement will save lots of bytes. and rewirte to one sql means
don't need  explicitly begin transaction ,because one sql will execute
in  a standalone transaction when autocommit is true,this save two
request for every batch. where network is slow autocommit will save more
time. hope rewrite replace statement will release in next version.

------------------------------------------------------------------------

[20 Jul 17:27] Filipe Silva

Bug#40561 is a duplicate of this.

------------------------------------------------------------------------

[12 Jul 8:00] Umesh Umesh

Hello!

Thank you for the report and contribution.

Thanks,
Umesh