Re: Request for official clarification on SQL parameter parsing changes in PostgreSQL 15 and 16

On Thu, Apr 17, 2025 at 11:13 AM 王　博 <bo.wang@infortech.co.jp> wrote:
> Hello PostgreSQL Community,
> We have encountered unexpected SQL parsing errors during application upgrades from PostgreSQL 14 to 15 and 16,
relatedto the use of JDBC-style parameter placeholders (`?`) in our legacy applications. 

AFAIK, PostgreSQL itself only supports $1, $2, ... bind placeholders.
Thus I suspect it's your JDBC driver that adds support for ? style placeholders.
So look in the release notes for that, instead of PostgreSQL itself. --DD