Hi Andy,
An upsert of a row that does not exist is exactly the same as an insert.
You can think of upsert as:
try {
insert the row
} catch (Already Exists) {
update the row
}
In reality, the conversion from insert to update is a bit more efficient
compared to doing the above yourself (and i
Thanks in advance.
hi, i have used java upsert api to load data instead of insert api.
will it have a bad effect even though these data were firstly loaded.
i do not know compaction mechanism of kudu, will it lead to many
compaction, thus lead to bad scan performance.
Best regards.
