Hi, this is yelim from korea. There are two questions i want to ask. 1. when there is a null value in a certain row while we want to overwrite not-null value on there, why is it not possible? We found difficulty on “ only not-null value can be overwrited at this version” 2. if we want to delete certain row in a pinot table, is there any solution to to do this? (just like alter table, or drop certain rows in normal db) Many thks beforehand!

1 should be possible cc @Yupeng Fu. For 2, the only way to delete rows is to regenerate the segment with removed rows and upload again