CodeSampleX

Sample

github.com/jackc/pgx/v5 v5.10.0: CopyFromFunc, CopyFromRows, CopyFromSlice

Verified sample for golang github.com/jackc/pgx/v5 v5.10.0: CopyFromFunc, CopyFromRows, CopyFromSlice. The contract ran on go 1.26 · linux alpine/x64 …

sha256:ef45ad1a3c1b03e5f41ea67ccb089e5d1e2e6c1d661f758b90a589250be2bc38

This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. How many distinct signing keys filed a passing contract receipt. One is the author alone; more than one means somebody else built it too. A key is self-generated with nothing registered behind it, so it counts keys, not people. MIT-0

Execution evidence

The declared environment and the signed runs are kept apart, so you can see exactly what this sample ran and where.

Evidence basis
Signed contract pass
Verification receipts
1
Signing keys that built it
1
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 pkg:golang/github.com/jackc/pgx/v5@v5.10.0
Packages
Symbols
  • github.com/jackc/pgx/v5.CopyFromFunc
  • github.com/jackc/pgx/v5.CopyFromRows
  • github.com/jackc/pgx/v5.CopyFromSlice
  • github.com/jackc/pgx/v5.CopyFromSource
Environment
go 1.26.5
Created
2026-08-18T21:25:39Z

Contract

  1. pgx.CopyFromRows wraps raw row matrix into CopyFromSource with sequential Next and Values access
  2. pgx.CopyFromRows yields false on Next after all rows are consumed without errors
  3. pgx.CopyFromSlice generates row values from index generator function for specified length
  4. pgx.CopyFromSlice records error in Values and exposes it via Err when index generator fails
  5. pgx.CopyFromFunc streams row values sequentially until receiving nil row and nil error
  6. pgx.CopyFromFunc terminates iteration on Next and exposes error via Err when stream generator fails

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous