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security(query): fail closed on SQL Server opaque UDFs without a table allowset (#575) - #637
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tse-wei-chen merged 4 commits intoNov 13, 2026
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Scope — #575 develop security convergence; no main merge or publication
Test-first security regression: without an MCP table whitelist, SQL Server's live connected-principal check alone is not a proof for provider-native EXECUTE AS/CLR/cross-db module effects. Host Query should reject opaque qualified/quoted native SQL Server routines at typed F# Query policy stage, while retaining modeled builtins, native permissions attestation, and standalone SqlCore grammar.
Initial commit only adds failing regression tests for both CLR compile paths, null/empty whitelist equivalence and safe built-ins. This PR remains draft until runtime implementation, bounded security docs, exact-head 18/18 Tests + SqlCore baseline have passed. No new Issue, and no main, tag or publication action.