Hello
pgsql-hackers seems wrong list for such question.
> could not load library "$libdir/hstore": ERROR: could not access file "$libdir/hstore": No such file or directory
> could not load library "$libdir/adminpack": ERROR: could not access file "$libdir/adminpack": No such file or
directory
> could not load library "$libdir/uuid-ossp": ERROR: could not access file "$libdir/uuid-ossp": No such file or
directory
>
> Observation : the above Libraries are present in 9.2 whereas its mising in 10.7. So i decided to go with lower
version.
This is contrib modules. They can be shipped in separate package, postgresql10-contrib.x86_64 for example (in centos
repo)
> Second i tried to attempt to upgrade from 9.2.24 to 9.6.12,9.4,9.3 but its failed with following error during Check
Mode.
>
> could not load library "$libdir/pg_reorg":
> ERROR: could not access file "$libdir/pg_reorg": No such file or directory
>
> Observation : In this case , pg_reorg is not present on both Source and Target . But strange its failing.
This is 3rd-party extension. Best way would be drop this extension on old cluster and perform upgrade. pg_reorg is
abandonedfor years, pg_repack is live fork if you need such tool.
regards, Sergei