PostgreSQL Upgrade Issue - Undefined Symbol Error

Hi All,

I am encountering an error after completion of PostgreSQL upgradation from
version 13.8 to 15.6. Trying to describe a single table, I am receiving an
error.

psql -d xyz

-->> \dt student*

The error message is as follows:

```
psql: symbol lookup error: psql: undefined symbol: PQmblenBounded
```

Could you please assist in resolving this issue?

Thanks and regards,

Vivek Gadge