BUG #18850: REDUNDANT_COMPARISON.ALWAYS_FALSE Redundant comparison

The following bug has been logged on the website:

Bug reference: 18850
Logged by: Nikita
Email address: pm91(dot)arapov(at)gmail(dot)com
PostgreSQL version: 16.6
Operating system: ubuntu 20.04
Description:

REDUNDANT_COMPARISON.ALWAYS_FALSE Redundant comparison

diff --git a/src/backend/commands/operatorcmds.c
b/src/backend/commands/operatorcmds.c
--- a/src/backend/commands/operatorcmds.c (revision
a49ac80219c6f28c3cf3973f797de637329952da)
+++ b/src/backend/commands/operatorcmds.c (date 1740387217614)
@@ -209,11 +209,6 @@
typeId[0] = typeId2;
nargs = 1;
}
- else if (!OidIsValid(typeId2))
- {
- typeId[0] = typeId1;
- nargs = 1;
- }
else
{
typeId[0] = typeId1;

I suggest the following patch fixing this issue