Re: PG 12 slow selects from pg_settings

Thank you,  Ranier, 

v12.8 has improved the performance

PostgreSQL 12.8, compiled by Visual C++ build 1914, 64-bit:

```

Function Scan on pg_show_all_settings a  (cost=0.00..12.50 rows=5 width=485) (actual time=7.122..7.128 rows=1 loops=1)
  Filter: (name = 'standard_conforming_strings'::text)
  Rows Removed by Filter: 313
Planning Time: 0.083 ms
Execution Time: 7.204 ms

```

Would you please direct me to the change log or some bug report to read in detail what was causing the problem and how it was fixed?