Re: SELECT slows down on sixth execution

On 2015-10-14 03:00, Albe Laurenz wrote:
>
> You are encountering "custom plans", introduced in 9.2.
>
> When a statement with parameters is executed, PostgreSQL will not only generate
> a generic plan, but for the first 5 executions it will substitute the arguments
> and generate and execute a custom plan for that.

Wow! Thanks. I feel this should be documented a bit better.

Shouldn't this be explained in at least as much details as in your
explanation, in the sql-prepare document?

Yves.
--
http://yves.zioup.com
gpg: 4096R/32B0F416