Jerry Brenner <jbrenner@guidewire.com> writes:
> Both Oracle and SQL Server have
> consistent hash values for query plans and that makes it easy to identify
> when there are multiple plans for the same query. Does that concept exist
> in later releases of Postgres (and is the value stored in the json explain
> plan)?
No, there's no support currently for obtaining a hash value that's
associated with a plan rather than an input query tree.
regards, tom lane