jakelong95 commented on issue #9518:
URL: https://github.com/apache/iceberg/issues/9518#issuecomment-1900986922

   Here's the obfuscated schema from `explain` - 
   ```
   column1,timestamp
   column2,timestamp
   column3,timestamp
   column4,string
   this_is_the_problem_column,string
   column6,string
   column7,string
   column8,string
   column8,string
   column9,string
   column10,string
   column11,string
   column12,string
   column13,string
   column14,string
   column15,string
   column16,timestamp
   column17,string
   column18,string
   column19,string
   column20,int
   column21,int
   column22,float
   column23,int
   column24,int
   column25,int
   column26,float
   column27,int
   column28,string
   column29,int
   column30,int
   column31,int
   column32,string
   column33,int
   column34,float
   column35,int
   column35,int
   column36,int
   column37,float
   column38,int
   ```
   
   The column I hit this issue with in the query is renamed to 
`this_is_the_problem_column`. Note that this table does not have any 
partitioning scheme or sorting.
   
   ---
   
   Not sure how helpful this is, but I just created a test table with a single 
string column and inserted a row with `''` and a row `null`, and run `select * 
from test.iceberg_bug_test where nullif(test, '') is null` and did not hit the 
issue.
   
   I'll try and do some more digging on my end to see if we hit this issue 
anywhere else and if it's something wrong with this table specifically


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