The pg_get_functiondef () function seems to have not appeared in PostgreSQL until v8.4.

We have upgraded OS and Mysql upgraded to version 8.0.22-0ubuntu0.20.04.2 , We are using median function ... After installing it works for few queries .. then median function become unavailable and ...

Scientists Discovered a New Creature That Exists Between Life and Not-Life Because they rely on hosts for a majority of functions, viruses aren’t considered alive.