[branch-4.0](scan) remove SchemaCache to fix concurrent crash in OlapScanner::prepare (#62327)#62427
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yiguolei merged 1 commit intoapache:branch-4.0from Apr 15, 2026
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…anner::prepare (apache#62327) Remove SchemaCache entirely. Each scanner now always builds its own independent TabletSchema via `std::make_shared<TabletSchema>()`, eliminating shared mutable state between concurrent scanners. Issue Number: close #xxx Related PR: #xxx Problem Summary: None - Test <!-- At least one of them must be included. --> - [ ] Regression test - [ ] Unit Test - [ ] Manual test (add detailed scripts or steps below) - [ ] No need to test or manual test. Explain why: - [x] This is a refactor/code format and no logic has been changed. - [ ] Previous test can cover this change. - [ ] No code files have been changed. - [ ] Other reason <!-- Add your reason? --> - Behavior changed: - [ ] No. - [ ] Yes. <!-- Explain the behavior change --> - Does this need documentation? - [ ] No. - [ ] Yes. <!-- Add document PR link here. eg: apache/doris-website#1214 --> - [ ] Confirm the release note - [ ] Confirm test cases - [ ] Confirm document - [ ] Add branch pick label <!-- Add branch pick label that this PR should merge into --> Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com> (cherry picked from commit aa1e21d)
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pick from master #62327