Elamur Groupantsqagen-select-normalization
The groupant beside qagen/src/select.rs in the Mova repository: what the code computes, what it never does, how to go back from its outputs, its invariants, cost and checks.
Facts
Implementation material. A Mova code model describes this code at one source revision: partial models, finite checks and their stated scope. It is not a reviewed general exposition, and its labels are shown as written, never raised.
Components
| component | label | where |
|---|---|---|
| approximant | partial source model | forward |
| ast | partial | ../syntax.json |
| cost | partial source model | cost |
| descriptant | partial source model | epoch-memory |
| invariant | partial source model | invariant |
| tests | partial source model | checks |
Obernants
The typed relations around the forward model: the behaviour complement (what the code never does), the reverse reconstruction (every input compatible with an output) and specialised views.
| id | type | label | where |
|---|---|---|---|
qagen-select-normalization-complement | behavior_complement | partial source model | behavior-complement |
qagen-select-normalization-reverse | reverse_reconstruction | partial source model | reverse-reconstruction |
qagen-select-normalization-specialization | normalization_projection | partial source model | specialization |
Model text
forward
Nine-column ordered rows fold contiguous equal (doc,para) into Para; derive book from first two colon components, words from whitespace and dialogue from has_quote. Context is immediately previous same-doc paragraph's final two sentences in source order.
behavior-complement
Reject row length !=9, license without public-domain prefix, null/invalid paragraph. Never cross document boundaries for context. Prefix acceptance is actual behavior, not legal validation.
reverse-reconstruction
For each normalized Para, compatible rows concatenate its sentence IDs/text under matching doc/para, first-row metadata and accepted license prefix. The ignored ord column is arbitrary; later repeated metadata is lost. This describes a set-valued preimage and presumes contiguous SQL order.
invariant
Source-bound operational relation over supplied finite inputs; deterministic observations under fixed order and seed. No corpus/distribution assumption. Integer quota arithmetic assumes 32/64-bit usize.
cost
One sequential row fold plus sentence/text scans; O(text bytes+rows) work, O(text bytes+rows) storage including cloned context.
specialization
Type normalization_projection: scoped observation above, exact intended relation, no approximation-error budget asserted.
checks
normalization_groups_context_and_rejects_bad_rows. See ../evidence.md for actual profiles and negative controls.
epoch-memory
2026-10-30: model written from the existing mechanism before numerical repair. Source hash "0c35caf4eda91c0a5d36bce728f3846b360b483a66fa4ca3c884964839cd2554". Finite witnesses constrain this relation, not a general proof.
This page in Markdown → https://md.groupants.elamur.ai/free/en/mova/qagen/src/select.rs.groupant/normalization.groupant/