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8b13096183
apply_ordering used an unstable lexsort with no tie-break, so rows with equal user-sort keys came out in a run-dependent order (the input order depends on scan parallelism / upstream hashing) — making ORDER ... LIMIT non-deterministic, a latent deny-list violation (no nondeterministic result ordering). Append the bound entities' key columns (<var>.id, unique per row) in canonical name-sorted order as ascending tie-breaks, giving a total, reproducible order (and a deterministic top-N when ties straddle the LIMIT cutoff). NULL placement (nulls_first = !descending) is unchanged and now documented as the contract. New tests/ordering.rs locks descending, multi-key precedence, the deterministic key tie-break (data loaded in a different order than the expected output, so it proves the tie sorts by key not by load order), and NULL placement under ASC/DESC. docs/user/query-language.md documents the total-order + NULL contract. |
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