yew1eb opened a new issue, #1776:
URL: https://github.com/apache/auron/issues/1776

   Fallback log:  
   ```
   NativeConverters: Falling back expression: scala.NotImplementedError: 
   unsupported expression: (class 
org.apache.spark.sql.catalyst.expressions.EqualNullSafe) (c1#2 <=> 1)
   ```
   
   To Reproduce: 
   ```
   CREATE TABLE t1(c1 BOOLEAN) USING parquet;
   INSERT INTO t1 VALUES (true), (false), (null);
   
   SELECT * FROM t1 WHERE c1 <=> true;
   ```


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