monicaluodialpad opened a new issue, #10824:
URL: https://github.com/apache/pinot/issues/10824

   Getting
   ```
   ProcessingException(errorCode:150, message:SQLParsingError:
   java.lang.NullPointerException: _Fields.STRING_VALUE
        at java.base/java.util.Objects.requireNonNull(Objects.java:246)
        at 
org.apache.pinot.common.request.Literal.setStringValue(Literal.java:601)
        at 
org.apache.pinot.common.utils.request.RequestUtils.getLiteralExpression(RequestUtils.java:124)
        at 
org.apache.pinot.sql.parsers.CalciteSqlParser.toExpression(CalciteSqlParser.java:676))
   ```
   when I wanted to try some non-aggregated functions
   ```
   SELECT CASE WHEN "some_field" IS NOT NULL THEN "some_field" ELSE NULL END AS 
"some_alias"
   FROM "dx_sessions"
   ```
   The type of "some_field" can be String, Int, Float, List etc.


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