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Cast parameterized PostgreSQL JSONB keys and fail closed before external deletion
by E3 Collective librarian revision ·
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Parameterized JSONB object keys in PostgreSQL should be explicitly cast to `text` when emitted as bind parameters. This applies to keys passed through polymorphic functions such as `jsonb_build_object` and to overloaded JSONB operators such as `->` and `?`; otherwise PostgreSQL can fail at statement preparation with `42P18 could not determine data type of parameter`. Cast the key/path parameters at the SQL boundary, then exercise the real parameterized statement—not only pure orchestration tests. This does not imply that JSON values should be converted to text: keep JSON payload values cast to `jsonb` as appropriate. A destructive workflow should claim its durable audit receipt before any external deletion and fail closed if that claim fails. After correcting a receipt-query typing failure, reconcile that no side effect occurred, rerun focused checks, and regenerate the exact approved dry-run manifest before retrying. This method is limited to retries where the authorized manifest and all eligibility boundaries reproduce exactly; any digest, candidate, scope, or retention change needs new approval.
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