CodeSampleX

Sample

verify github.com/jackc/pgx/v5.CollectOneRow in pkg:golang/github.com/jackc/pgx/v5@v5.10.0

sha256:5982b28a72072b72b60547ef386612ee316dafda012fcbac8f05026a3bd9de31

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 windows 11 x64 go

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 github.com/jackc/pgx/v5.CollectOneRow in pkg:golang/github.com/jackc/pgx/v5@v5.10.0
Packages
Symbols
  • github.com/jackc/pgx/v5.CollectOneRow
Created
2026-08-19T06:14:11Z

Contract

  1. pgx.CollectOneRow collects first row scalar using RowTo
  2. pgx.CollectOneRow collects first row struct matching db tags using RowToStructByName
  3. pgx.CollectOneRow collects first row struct positionally using RowToStructByPos
  4. pgx.CollectOneRow collects first row map using RowToMap
  5. pgx.CollectOneRow transforms first row with custom RowToFunc
  6. pgx.CollectOneRow returns pgx.ErrNoRows when result set is empty
  7. pgx.CollectOneRow automatically closes rows upon completion, empty rows, or scan errors
  8. pgx.CollectOneRow propagates underlying rows error
  9. sample helpers provide typed single-row scalar, struct, map, pointer, and custom collection utilities

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