omnigraph/crates
Ragnor Comerford 8b13096183
fix(engine): total deterministic ORDER via entity-key tie-break + NULL contract
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.
2026-06-09 13:50:59 +02:00
..
omnigraph fix(engine): total deterministic ORDER via entity-key tie-break + NULL contract 2026-06-09 13:50:59 +02:00
omnigraph-cli fix(optimize): skip blob-bearing tables to avoid Lance compaction crash (#138) 2026-06-02 17:12:00 +02:00
omnigraph-compiler fix(optimize): skip blob-bearing tables to avoid Lance compaction crash (#138) 2026-06-02 17:12:00 +02:00
omnigraph-policy fix(optimize): skip blob-bearing tables to avoid Lance compaction crash (#138) 2026-06-02 17:12:00 +02:00
omnigraph-server fix(optimize): skip blob-bearing tables to avoid Lance compaction crash (#138) 2026-06-02 17:12:00 +02:00