Improve the efficiency of MySQL preparedBatch

Currently prepareBatch implementation in MySQL is just an emulation for executing preparedQuery several times, MySQL Client/Server protocol does not support pipelining the requests therefore users don’t benefit much in respect of performance.

MySQL JDBC Connector provides an option rewriteBatchedStatements to combine multiple inserts into one insert command, this will make better utilization of network because it reduces the round trips here. I think we could support this useful feature in the MySQL client.

[vietj]

thanks @Sanne , my opinion is that a client should in practice remains agnostic of SQL that is tied to the application

On Fri, Sep 3, 2021 at 8:52 AM Sanne Grinovero @.***> wrote:

yes sure Hibernate could support this theoretically, but rather than aggregation of individually generated SQL statements I would prefer to generate the optimal SQL right away.

Which implies it would be best to wait for Hibernate 6, if that’s possible?

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[vietj]

I will try to find a supportable solution to this