flux-pr-2185
sqlparser-rs (Rust) · W2 · GPT-5.1 Codex Mini
Tests passed. 1/1 commands passed. Strength: strong.
env PATH=/root/.cargo/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin cargo test --all-featuresPartial score: 1/1
Trajectory
codex · partial order onlyprovider-native trajectory captured; validation and decision steps are appended with coarse ordering only
Quality
Equivalence Reasoning
behavioral
The patch only partially implements the intent. It adds optional `START WITH`, `CONNECT BY NOCYCLE` parsing logic, and a `CONNECT_BY_ROOT` expression, but misses key behavior from the task: it does not add `NOCYCLE` to `keywords.rs` (so `Keyword::NOCYCLE` is likely undefined), does not implement Oracle select-item operator reservation for `CONNECT_BY_ROOT` (and even removes Snowflake’s existing reservation), and keeps `connect_by` as a single struct that normalizes output order instead of preserving flexible clause ordering. These are functional mismatches, not just structural differences.
Code Review
The patch is unlikely to satisfy the intended PR change end-to-end: it adds parts of the feature but misses key structural/parser updates and introduces likely breakage/regression risks.
The patch parses `Keyword::NOCYCLE` in `parse_connect_by`, but no matching keyword-list update is present in this patch. If `NOCYCLE` is not already defined, this is a compile-time break and blocks the feature.
Using a single `ConnectBy { start_with, relationships, no_cycle }` collapses clause sequence and always renders `START WITH` before `CONNECT BY`, so round-trip/order-sensitive behavior requested for flexible Oracle-style clauses is not represented.
The patch deletes Snowflake's `get_reserved_keywords_for_select_item_operator` override and the associated constant, which can regress existing Snowflake parsing behavior for `CONNECT_BY_ROOT` while the task is Oracle-focused.
Only `parse_connect_by` is modified; this patch does not show the broader select-clause parsing refactor needed to support hierarchical clauses in the right position relative to other clauses (as required by Oracle semantics).