Omega359 commented on PR #16996:
URL: https://github.com/apache/datafusion/pull/16996#issuecomment-3186490312

   Here is an example of a query that passes in main and fails on this branch:
   ```sql
   CREATE TABLE tab0(col0 INTEGER, col1 INTEGER, col2 INTEGER);
   CREATE TABLE tab1(col0 INTEGER, col1 INTEGER, col2 INTEGER);
   CREATE TABLE tab2(col0 INTEGER, col1 INTEGER, col2 INTEGER);
   INSERT INTO tab0 VALUES(97,1,99);
   INSERT INTO tab0 VALUES(15,81,47);
   INSERT INTO tab0 VALUES(87,21,10);
   INSERT INTO tab1 VALUES(51,14,96);
   INSERT INTO tab1 VALUES(85,5,59);
   INSERT INTO tab1 VALUES(91,47,68);
   INSERT INTO tab2 VALUES(64,77,40);
   INSERT INTO tab2 VALUES(75,67,58);
   INSERT INTO tab2 VALUES(46,51,23);
   
   SELECT DISTINCT 32 AS col2 FROM tab0 AS cor0 LEFT OUTER JOIN tab2 AS cor1 ON 
( NULL ) IS NULL;
   
   Arrow error: Invalid argument error: must either specify a row count or at 
least one column
   ```
   There are a bunch of other failures where the result count between main and 
this branch do not match. I verified a bunch of the queries do have  
NestedLoopJoinExec in the explain result.


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