The following bug has been logged on the website:
Bug reference: 18230
Logged by: RekGRpth
Email address: rekgrpth(at)gmail(dot)com
PostgreSQL version: 16.1
Operating system: all
Description:
All versions of PostgreSQL has redundant comparison of a local variable
'tzp' address with a NULL value at dt_common.c in DecodeDateTime function.
```c
...
int t = 0;
int *tzp = &t;
...
if (tzp != NULL)
...
if (tzp == NULL)
...
```