Hi devs, I've a question about null values in secondary index. I've assumed that null values are simply excluded from the secondary index. For example, if I build a secondary index on Name, then a record with Name being null would not be indexed. I also saw in IntroduceSecondaryIndexInsertDeleteRule we created some filtering expression to filter out null secondary values.
However, when we bulkload a dataset, this filtering expression is never executed when loading a secondary index, which implies all null values are added to the secondary index. Is it safe to assume this is a bug? Best regards, Chen Luo
