hpc researcher_mspk <hpcresearch(dot)mspk(at)gmail(dot)com> writes:
> Tried PostgreSQL with GCC-Profile guided optimization(PGO) and it is
> working with the HammerDB benchmark environment. Similarly, we tried
> PostgreSQL with Clang(12.0V) -Profile guided optimization(PGO) and it is
> not working and observed an error
> "warning: default.profraw: Failed to uncompress data (zlib)
> error: No profiles could be merged"
> Are there any plans to fix this issue in upcoming releases?
I see no reason to believe that this is Postgres' problem to fix.
Try filing a bug with the Clang people.
regards, tom lane