timescaledb-fix-set-returning-functions

Task gallery / Software engineering / Version 1

Reference solution (oracle): Pass
No-op resistance check: Pass
QA verdict: Not recorded
Aggregate eligibility: Eligible version

The task

Some operations in this TimescaleDB build return the wrong results Teams using this build of TimescaleDB, a time-series extension for PostgreSQL, have started filing reports: queries over hypertables return the wrong rows. There is no crash and no error message. It compiles cleanly and its own test suite is green, which is exactly how this reached them unnoticed. The reports cluster around ORDER BY over compressed c…

Excerpt only; not a complete executable task specification. Task ID task_450af4d51db04832 · version 1. Selection status: not fully recorded.

Results by model and effort

This exact task version only. Every rate is passes / valid runs with a Wilson 95% interval; n≤2 remains counts only. Macro aggregation does not apply within a single task. Baselines are summarized in the quality gates, not ranked. A passed no-op resistance check means that doing nothing did not solve the task.

Current evidence

Model / effort	Verifier result [95% Wilson]	Diagnostic labels / valid	HARNESS_ERROR · excluded	Outcome classes
Claude Opus 5 · default (unverified)	3/10 · 30.0% [10.8%, 60.3%]	8 / 10	0	GOOD_FAILURE: 6 BAD_FAILURE: 0 GOOD_SUCCESS: 2 BAD_SUCCESS: 0

Legacy evidence

Model / effort	Verifier result [95% Wilson]	Diagnostic labels / valid	HARNESS_ERROR · excluded	Outcome classes

Difficulty, with uncertainty

Selected-best difficulty: 70.0% [39.7%, 89.2%]. This is one minus the best measured current-row pass rate among rows with at least five valid runs.

The maximum is selected from the observed rows, so the estimate is optimistic. Its Wilson interval is not adjusted for model selection. “Hard” requires qualifying GOOD_FAILURE evidence; the threshold flag additionally requires the interval and recorded quality gates to meet the documented rule. This is not independent validation. Threshold flag: no.

Every recorded run

14 recorded trials, including controls. Diagnostic labels do not replace verifier reward. Labels and quality checks are source declarations, not independently attested here. Internal evidence remains private; a missing public URL is shown explicitly. Records with invalid or absent rewards are not scored.

Run / model	Date / source	Reward / eligibility	Diagnostic class / source	Resources	Evidence
`trial_e57fd5c0f4c544fd` oracle@@	Oct 8, 2026 console	1 · excludedsource_evidence_exclusion	No diagnostic label derived	Tokens: — Turns: — Cost: —	Not publicly available
`trial_bc4caf88670a4935` nop@@	Oct 8, 2026 console	0 · excludedsource_evidence_exclusion	No diagnostic label derived	Tokens: — Turns: — Cost: —	Not publicly available
`trial_4187638967f3441a` Claude Opus 5 · default (unverified)	Oct 8, 2026 console	0 · valid	No diagnostic label derived	Tokens: 220,591 Turns: 279 Cost: $40.6518	Not publicly available
`trial_d9399701601841f6` Claude Opus 5 · default (unverified)	Oct 8, 2026 console	1 · valid	No diagnostic label derived	Tokens: 208,045 Turns: 260 Cost: $37.2683	Not publicly available
`trial_52d5e9cf10d64291` oracle@@	Oct 10, 2026 console	1 · valid	No diagnostic label derived	Tokens: — Turns: — Cost: —	Not publicly available
`trial_c3ef070204cf4667` nop@@	Oct 10, 2026 console	0 · valid	No diagnostic label derived	Tokens: — Turns: — Cost: —	Not publicly available
`trial_10ac5ea7c62f484a` Claude Opus 5 · default (unverified)	Oct 10, 2026 console	0 · valid	GOOD_FAILURE frozen-classifier	Tokens: — Turns: — Cost: —	Not publicly available
`trial_42526a2099be4407` Claude Opus 5 · default (unverified)	Oct 10, 2026 console	0 · valid	GOOD_FAILURE frozen-classifier	Tokens: 210,327 Turns: 307 Cost: $43.6901	Not publicly available
`trial_696ffb1c66164073` Claude Opus 5 · default (unverified)	Oct 10, 2026 console	0 · valid	GOOD_FAILURE frozen-classifier	Tokens: 198,747 Turns: 267 Cost: $35.9860	Not publicly available
`trial_8b605161e812465e` Claude Opus 5 · default (unverified)	Oct 10, 2026 console	0 · valid	GOOD_FAILURE frozen-classifier	Tokens: 255,416 Turns: 374 Cost: $60.6241	Not publicly available
`trial_b04527966d434f45` Claude Opus 5 · default (unverified)	Oct 10, 2026 console	1 · valid	GOOD_SUCCESS frozen-classifier	Tokens: 104,117 Turns: 128 Cost: $12.1808	Not publicly available
`trial_613c535b32a2410e` Claude Opus 5 · default (unverified)	Oct 11, 2026 console	0 · valid	GOOD_FAILURE frozen-classifier	Tokens: 195,499 Turns: 280 Cost: $37.2675	Not publicly available
`trial_b90de768c9c44959` Claude Opus 5 · default (unverified)	Oct 11, 2026 console	1 · valid	GOOD_SUCCESS frozen-classifier	Tokens: 113,993 Turns: 146 Cost: $15.4974	Not publicly available
`trial_ed72de51957e47f7` Claude Opus 5 · default (unverified)	Oct 11, 2026 console	0 · valid	GOOD_FAILURE frozen-classifier	Tokens: 139,856 Turns: 277 Cost: $30.6348	Not publicly available