cockroachdb / cockroachdb/cockroach
sqlproxy: add mixed-version test coverage for session migration
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A-multitenancy
A-testeng-foundations
A-testing
T-cloud-platform
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Description
Our session serialization/deserialization logic that's used by the sqlproxy is not tested in mixed version tests which can result in bugs surfacing during an upgrade when session migration takes place.
We should add a mixed version roachtest that migrates sessions from an old node to a new one successfully.
Jira issue: CRDB-58065
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