Module quality_report 

Data Quality results as a report: what is likely wrong, what depends on intent, and which columns have nothing to report. Each check kind is one row of ObservationKind::spec (names, severity, rank, advice, grouping, wording). Built once per result; the engine, cache and drill-in work on observations, which a finding only groups and ranks.

Structs

Check

One check the run makes: what it looks for, how far it reached, what it found. The list is the answer to “checked for what?” when nothing turned up.

CheckSpec

One kind of check. Everything about a kind but its emitter and the predicate beside it (QualityObservation::evidence_predicate) is here.

Coverage

How far the findings reach, beside them on every report: the checks that ran and what they read, the ones that did not and why, the rows behind the numbers, and what else bounds them. From what the run measured and saw; nothing here reads.

Finding

FindingsView

How the findings list is narrowed and ordered. Presentation only: it reads the report on screen, and nothing is measured again.

QualityReport

ReportCache

The report and checks a DataQualityResults reads as, built once on first ask and kept with the results (their inputs never change after install). A copy starts empty, so a changed copy reads fresh.

Enums

Evidence

What Enter opens of a finding, and how many rows that is.

EvidenceRows

The rows behind a finding.

FindingOrder

The order findings are listed in within each severity.

Grouping

Which of a kind’s observations one finding says together.

Outcome

What one check found: nothing, something, nothing because there was nothing for it to look at, or nothing because this run could not look.

Severity

Variant

A kind read more than one way (how much is missing; what parsing text holds), each with its own title and sometimes severity, rank and advice.

Constants

CHECKS_SHOWN

How many checks the collapsed list shows before “more”.

INTENT_CHECK

The check the declared intent makes, by the name the Checks list gives it.

NO_FINDINGS

The clean-columns entry’s title.

THIN_SEGMENT_ROWS

A segment with fewer sampled rows than this is thin: only a large change in it clears the sampling noise, and a clean one says little.

Functions

advice

What a finding means for the data and what to do about it, a fragment a line.

build_report

check_choices

The checks that made a finding in report, each with how many, most important first.

checks

Every check, most important first.

column_choices

The columns a report can be narrowed to, each with how many findings name it, in the results’ column order.

columns_label

Column names joined until width, then “+N” for the rest.

coverage

describe

The finding’s numbers in a fragment, then the evidence that makes it concrete: the values, the spellings, the files.

verdict

Headline counts, one line: the answer before the evidence.