STET■

flux-pr-1649

sqlparser-rs (Rust) · W1 · GPT-5.1 Codex Mini

graphql-go-tools (Go)sqlparser-rs (Rust)Zod (TypeScript)
W2W1
|
GPT-5.1 Codex Mini
pass_with_warn

Tests passed. 1/1 commands passed. Strength: strong.

100.0% run pass rate
Tier 1
primary testspasseddecision conflictnon equivalentfail
env PATH=/root/.cargo/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin cargo test --all-features
gold passagent pass

Partial score: 1/1

Publishable: yesCache: miss

Trajectory

unknown · partial order only

Canonical trajectory missing; showing coarse derived order only.

patch written
Patch captured
#1

Stet captured agent.patch for this trial.

agent.patch
validation
Tests passed
#2
validation
equivalence
Equivalence judgment
#3

non_equivalent

validation
code review
Code review judgment
#4

fail

validation
decision
Final decision
#5

pass_with_warn

validation

Quality

equivalence
non_equivalent
89% confidence
code review
fail
3 findings
footprint
low (0.32)
behavioral
100.0%
cost
$1.50 · 5.1M

Equivalence Reasoning

behavioral

The patch adds parsing for `BEGIN TRY/CATCH` and `END TRY/CATCH`, but it misses key intended behavior: it does not preserve plain `END` syntax (it round-trips to `COMMIT` when no modifier), and it reuses `supports_start_transaction_modifier` for `END`, allowing inappropriate `END` modifiers (including SQLite ones) instead of restricting `END` to MS-SQL `TRY/CATCH` via a dedicated dialect capability.

Code Review

correctness: 1/4introduced bug risk: 1/4edge case handling: 1/4maintainability idioms: 2/4

The patch partially adds TRY/CATCH tokens and MSSQL parsing, but it does not fully satisfy the intended change: END/COMMIT semantics are conflated, END support is not dialect-gated independently, and END edge behavior is inconsistent.

3 findings
END statements lose identity and round-trip as COMMIT
major

The AST no longer distinguishes END vs COMMIT (`Commit { chain, modifier }` only). `parse_end` can produce `modifier: None`, and display then prints `COMMIT...` for that case, so `END` is not preserved.

src/ast/mod.rs:2985
END modifier parsing is incorrectly gated by start-modifier support
major

`parse_end` uses `parse_transaction_modifier`, which returns early based on `supports_start_transaction_modifier`. This couples END behavior to BEGIN behavior and can admit unsupported END modifiers in dialects that only support BEGIN modifiers.

src/parser/mod.rs:12807
END TRY/CATCH forcibly disables chain parsing
major

When a modifier is present in `parse_end`, `chain` is hardcoded to `false` rather than parsing optional chain syntax, making behavior inconsistent with existing commit/end chain handling.

src/parser/mod.rs:12808
Evidencevalidation (127.5 KB)results (55.9 KB)run_metadata (1.6 KB)agent_patch (10.0 KB)summary (90.8 KB)manifest (475 B)