Aleksey Plekhanov updated IGNITE-9689:
    Fix Version/s:     (was: 2.9)

> MVCC: Optimize filter usage in MvccUpdateDataRow.
> -------------------------------------------------
>                 Key: IGNITE-9689
>                 URL: https://issues.apache.org/jira/browse/IGNITE-9689
>             Project: Ignite
>          Issue Type: Task
>          Components: cache, mvcc
>            Reporter: Andrey Mashenkov
>            Priority: Major
>              Labels: mvcc_performance
> PutIfAbsent and all Replace operation uses filter for previous values checks.
> When filter has provided then we have to retrieve full row (instead of 
> header) just to apply the filter.
> However, in most of cases filter doesn't need a value itself, but just a fact 
> if previous value exists.
> There is unused class 
> org.apache.ignite.internal.processors.cache.CacheOperationFilter enum that 
> can be used for optimization. We can just compare filter type and visitor 
> resultType to make a decision in CacheDataStore.mvccUpdate\mvccRemove methods.

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