> On 3 Sep 2019, at 19:45, Alexander Batyrshin <0x62...@gmail.com> wrote:
>
> I observer that there is some extra mutations in batch for every my UPSERTs
> For example if app call executeUpdate() only 5 times then on commit there
> will be "DEBUG MutationState:1046 - Sent batch of 10"
> Can’t figure out where this extra mutations comes from and why.
>
> This is mean that “useful” batch size is phoenix.mutate.batchSize / 2.
Extra mutation is Mutation.Delete because I have NULL value in UPSERT statement
