Dev zhongli#981

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zhongli-james wants to merge 7 commits into

alibaba:developfrom

zhongli-james:dev_zhongli

Commits on Jun 1, 2026

[refine]:load test connection info from env vars, drop hardcoded creds and local paths
zhongli-james
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Commits on Jun 2, 2026

[fix]:OrphanFilter wrong column hashing for compound hashed shard keys
zhongli-james
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[fix]:repair dup-key strategy unit tests introduced by #973
zhongli-james
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