[GitHub] [doris] BiteTheDDDDt commented on a diff in pull request #20635: [fix](case expr) fix coredump of case for null value 2

["BiteTheDDDDt (via GitHub)" <gi...@apache.org>]

BiteTheDDDDt commented on code in PR #20635:
URL: https://github.com/apache/doris/pull/20635#discussion_r1223887362


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be/src/vec/functions/function_case.h:
##########
@@ -332,13 +332,15 @@ class FunctionCase : public IFunction {
         bool then_null = false;
         for (int i = 1 + has_case; i < arguments.size() - has_else; i += 2) {
             auto then_column_ptr = block.get_by_position(arguments[i]).column;
-            if (then_column_ptr->is_nullable() || then_column_ptr->only_null()) {
+            if (then_column_ptr->is_nullable() ||

Review Comment:
   maybe we can remove `then_column_ptr->is_nullable()`?



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