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At the moment Apache Ignite's SQL engine doesn't support transactions. SELECT statements are executed on top of committed data without creating a snapshot. DML statements are executed as a series of batched updates using IgniteCache.invokeAll command. As a result it is neither possible to get consistent view of data, nor to update it with ACID semantics. We need to implement transactions support in SQL on top new MVCC protocol.

Description

TBD

Risks and Assumptions

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