Recognises an unmapped mandatory target column
A NOT NULL target column with no mapping and no accepted default.
Can AI do this?
Not settled yet The benchmark tested this, but the models' answers do not settle yet whether they master it. 0 of 4 models in the current benchmark master it.
| Model | Tier | Probability of mastery | Status |
|---|---|---|---|
| gemini-4-argon | Flagship | 81% | Not shown |
| gemini-3.5-flash-lite | Low cost | 72% | Not shown |
| gpt-6-luna | Low cost | 80% | Not shown |
| claude-haiku-5-5 | Low cost | 80% | Not shown |
Mastered means a probability of at least 90% that the model has this knobit, estimated from its graded answers. “Not shown” means the answers do not settle it either way. How the models are tested.
What it looks like in practice
Expected result: The column and its mapping
How it is assessed: Flags the deficient case and passes the acceptable one. Deficient: card_txn.currency NOT NULL, no MP Acceptable: MP-004 from SR-002 settlement currency
Also known as: Unmapped mandatory target
Related knobits
Builds on
All 18 knobits of Map sources to targets.
Source: Review checklist 02-source-to-target-mapping, row 1 (DMBOK)