**Describe the bug**
See title.

**To Reproduce**
create table t (i int);
insert into t values (0), (null);
select min(i) from t;

**Expected behavior**
Result should be 0.  It does in fact return NULL.

**Screenshots**
If applicable, add screenshots to help explain your problem.

**Software versions**
Dec2023-SP2.
Finding minimum value in reverse sorted column with NULL values at the end gives wrong result.
This is a GitHub Issue
repo:MonetDB
owner:MonetDB
Title : Finding minimum value in reverse sorted column with NULL values at the end gives wrong result.
Issue date:

--- start body ---
**Describe the bug**
See title.

**To Reproduce**
create table t (i int);
insert into t values (0), (null);
select min(i) from t;

**Expected behavior**
Result should be 0.  It does in fact return NULL.

**Screenshots**
If applicable, add screenshots to help explain your problem.

**Software versions**
Dec2023-SP2.
--- end body ---
