morningman commented on code in PR #9910:
URL: https://github.com/apache/incubator-doris/pull/9910#discussion_r886622023
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be/src/exprs/bitmap_function.cpp:
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@@ -393,7 +393,7 @@ StringVal
BitmapFunctions::bitmap_hash(doris_udf::FunctionContext* ctx,
StringVal BitmapFunctions::bitmap_serialize(FunctionContext* ctx, const
StringVal& src) {
if (src.is_null) {
- return src;
Review Comment:
Could you explain more about the reason?
Maybe you can write some comment directly in code.
And P0 failed, please check.
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