On Mon, 2023-09-11 at 12:57 +0800, Mikhail Balayan wrote: > Thanks for the idea. I was surprised to find that this is not the way it works and the planning time remains the same. To benefit from the speed gains of a prepared statement, you'd have to execute it at least seven times. If a generic plan is used (which should happen), you will see $1 instead of the literal argument in the execution plan. Prepared statements are probably your best bet. Yours, Laurenz Albe