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Ivan Pavlukhin edited comment on IGNITE-8581 at 8/29/18 7:40 AM:
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Isolated updater (default one when {{allowOverwrite == true}}) stores rows with
_initial version_ which is immediately visible to every transaction;
transaction is not started and no snapshot is used. {{REPETABLE_READ}}
isolation guarantees are not satisfied in presence of such streamer.
Other updaters depends on cache API behavior.
Main goal was to make possible COPY command to be implemented.
was (Author: pavlukhin):
Isolated updater (default one when {{allowOverwrite == true}}) stores rows with
_initial version_ which is immediately visible to every transaction;
transaction is not started and no snapshot is used. {{REPETABLE_READ}}
isolation guarantees are not satisfied in presence of such streamer.
Other updaters depends on cache API behavior.
> MVCC TX: data streamer support
> ------------------------------
>
> Key: IGNITE-8581
> URL: https://issues.apache.org/jira/browse/IGNITE-8581
> Project: Ignite
> Issue Type: Bug
> Components: mvcc, sql
> Reporter: Sergey Kalashnikov
> Assignee: Ivan Pavlukhin
> Priority: Major
>
> Add support for data streamer for mvcc caches.
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