CodeSampleX

Sample

verify pgtype.Interval parsing, value conversion, and scanning in pkg:golang/github.com/jackc/pgx/v5@v5.10.0

sha256:03e3b2178a41a0366e98f937492c1ee1a4391057f583658b6c88dedb953cfdd7

Publication state. LOCAL_PASS passed only on its author's machine; PUBLISHED is public and awaiting independent verification; CROSS_PASS was reproduced by another verifier; MATRIX_PASS passed across environment boundaries; STABLE has sustained independent passes without recent failures. Evidence strength. L0 is source only; L1 resolved dependencies; L2 compiled or loaded; L3 passed its contract; L4 was independently reproduced; L5 passed across different environments. MIT-0

Execution evidence

Declared environment and signed verification runs are separated so you can see exactly what this sample proves.

Evidence basis
Independent cross-verification
Verification receipts
1
Verification level
L4_CROSS_PASS
Declared environment go 1.26 windows 11 x64 go 1.26 go go 1

Verification-run environments

Environment Contract Stages Run
go 1.26 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · golang@1
2026-08-19

Case

HOW
Goal
verify pgtype.Interval parsing, value conversion, and scanning in pkg:golang/github.com/jackc/pgx/v5@v5.10.0
Packages
Symbols
  • github.com/jackc/pgx/v5/pgtype.Interval
  • github.com/jackc/pgx/v5/pgtype.Interval.IntervalValue
  • github.com/jackc/pgx/v5/pgtype.Interval.Scan
  • github.com/jackc/pgx/v5/pgtype.Interval.ScanInterval
  • github.com/jackc/pgx/v5/pgtype.Interval.Value
Environment
go 1.26.5
Created
2026-08-19T04:50:45Z

Contract

  1. pgtype.Interval.Scan parses PostgreSQL formatted interval strings into Months, Days, and Microseconds components
  2. pgtype.Interval.Scan handles nil input by setting Valid to false to represent SQL NULL
  3. pgtype.Interval.Value returns formatted driver string for valid intervals and nil for invalid intervals
  4. pgtype.Interval.IntervalValue returns underlying Interval value and nil error for valid interval
  5. pgtype.Interval.ScanInterval copies interval properties from source to destination instance
  6. pgtype.Interval.Scan returns error for invalid interval string representations
  7. Sample helper functions parse, format, clone, and extract interval values

Files

  • PROMPT.md
  • csx.json
  • go.mod
  • go.sum
  • sample.go
  • spec.json
  • test/contract.go

Download the source artifact (tar.gz)

Origin Seeder

anonymous