Dear Alexander,
Thanks for pushing the fix patch! BTW, I have few comments for your commits.
Can you check and include them if needed?
01.
```
$node->append_conf('postgresql.conf',
"shared_preload_libraries = 'injection_points'");
```
No need to set shared_preload_libraries in 046/047. ISTM it must be set when we
enable the statistics.
02.
We should also check whether the injection_points can be installed or not.
You can check check_extension() and callers.
Best regards,
Hayato Kuroda
FUJITSU LIMITED
