Roman Puchkovskiy created IGNITE-20106:
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Summary: Check that client schema version matches server-side
schema version
Key: IGNITE-20106
URL: https://issues.apache.org/jira/browse/IGNITE-20106
Project: Ignite
Issue Type: Improvement
Reporter: Roman Puchkovskiy
Fix For: 3.0.0-beta2
As per
https://cwiki.apache.org/confluence/display/IGNITE/IEP-110%3A+Schema+synchronization%3A+basic+schema+changes#IEP110:Schemasynchronization:basicschemachanges-Overallflow
, the schema version that the client sends with each request should be
validated against the server-side schema version corresponding to the given
table in the tx. If it does not match, SCHEMA_VERSION_MISMATCH_ERR should be
sent to the client along with the correct server-side schema version.
The check should be done on a tx coordinator. Also, the coordinator must check
that all the tuples sent by the client (in the same request) are encoded using
the same schema version.
The IEP defines baseTs as tableEnlistTs(tx, table). On the first iteration, we
should implement a simpler way to calculate baseTs (max(beginTs,
tableCreationTs) to allow created tables to 'appear' in a transaction or even
simply beginTs).
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