Re: sql statement not using all primary key values and poor performance

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On Fri, 2024-02-23 at 18:21 +0800, James Pang wrote:
> it's a third-party vendor application, not easy to change their code.

Then the application is broken, and you should make the vendor fix it.

> is it possible to   1) in Postgresql JDBC driver connection, set
> plan_cache_mode=force_custom_plan    or 2) some other parameters can workaround this issue?

You can set "prepareThreshold" to 0 to keep the JDBC driver from using
prepared statements in PostgreSQL.  I am not sure if that is enough to
fix the problem.

Yours,
Laurenz Albe






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