[GitHub] [incubator-doris] EmmyMiao87 commented on a change in pull request #4932: [Bug] Fix the bug of NULL do not show in CTE statement.

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

EmmyMiao87 commented on a change in pull request #4932:
URL: https://github.com/apache/incubator-doris/pull/4932#discussion_r527514868



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File path: fe/fe-core/src/main/java/org/apache/doris/analysis/InlineViewRef.java
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@@ -266,7 +266,9 @@ public TupleDescriptor createTupleDescriptor(Analyzer analyzer) throws AnalysisE
             }
 
             columnSet.add(colAlias);
-            columnList.add(new Column(colAlias, selectItemExpr.getType().getPrimitiveType()));
+            // TODO: inlineView threat all column is nullable to make sure query results are correct
+            // we should judge column whether is nullable by selectItemExpr in the future
+            columnList.add(new Column(colAlias, selectItemExpr.getType().getPrimitiveType(), true));

Review comment:
       Unfortunately, we cannot directly obtain the information about whether slot desc is nullable or not from Expr.




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