[GitHub] [druid] abhishekagarwal87 commented on a change in pull request #12092: Fix SQL queries for inline datasource with null values

[GitBox <gi...@apache.org>]

abhishekagarwal87 commented on a change in pull request #12092:
URL: https://github.com/apache/druid/pull/12092#discussion_r777382324



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File path: sql/src/main/java/org/apache/druid/sql/calcite/expression/Expressions.java
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@@ -242,6 +242,7 @@ private static DruidExpression rexCallToDruidExpression(
                                                            .lookupOperatorConversion(operator);
 
     if (conversion == null) {
+      plannerContext.setPlanningError("SQL query requires '%s' operator that is not supported.", operator.getName());

Review comment:
       the absence of a corresponding operator seems like a genuine feature gap. Also, I can populate a more precise error here than I can in the uppar part of the call stack. Since a null can be returned for other reasons. 




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