[4/4 messagequeue] Add Vitess vschema and two-shard vtcombo suite - #696
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## Summary ### Why? The tenant column is the production vindex. Without a VSchema and a two-shard suite, the schema change is unproven on Vitess. ### What? - Add production xxhash VSchema for every queue table keyed on tenant. - Add a vtcombo integration suite that publishes and consumes across two shards (receive loop bound to the test context). Admin CLI tenant flags shipped with the schema PR because ctl/lib SQL is coupled to the new primary keys. ## Test Plan Vitess suite is Docker-based; run with: `./tool/bazel test //test/integration/extension/messagequeue/mysql/vitess:go_default_test --strategy=TestRunner=local` Co-authored-by: Cursor <cursoragent@cursor.com>
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Summary
Why?
The tenant column is the production vindex. Without a VSchema and a two-shard suite, the schema change is unproven on Vitess.
What?
Admin CLI tenant flags shipped with the schema PR because ctl/lib SQL is coupled to the new primary keys.
Test Plan
Vitess suite is Docker-based; run with:
./tool/bazel test //test/integration/extension/messagequeue/mysql/vitess:go_default_test --strategy=TestRunner=localIssues
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