CodeSampleX

Sample

github.com/jackc/pgx/v5 v5.10.0: pgx.Conn.Begin, pgx.Tx.Commit, pgx.Tx.Rollback

Verified sample for golang github.com/jackc/pgx/v5 v5.10.0: pgx.Conn.Begin, pgx.Tx.Commit, pgx.Tx.Rollback. The contract ran on go 1.26 · linux alpine/x64 …

sha256:6f79891a179ca3fbdd8fc48044ef98181d973b5fb4d1820fa498ea65698f32f4

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 linux x64 go 1.26 go gomod

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 · go@1
2026-08-19

Case

HOW
Goal
verify pgx.Conn.Begin in pkg:golang/github.com/jackc/pgx/v5@v5.10.0
Packages
Symbols
  • pgx.Conn.Begin
  • pgx.Tx.Commit
  • pgx.Tx.Rollback
  • pgx.ErrTxClosed
Environment
go 1.26
Created
2026-08-18T13:18:30Z

Contract

  1. pgx.Conn.Begin sends BEGIN and returns a transaction whose lifetime is not bound to the context used for the BEGIN command.
  2. Cancelling the Begin context after Begin returns does not send ROLLBACK and the transaction can still be committed with another context.
  3. Rollback must be called explicitly on abandoned transactions.
  4. Rollback after a successful Commit and repeated Rollback calls return pgx.ErrTxClosed without sending another server command, making defer tx.Rollback safe.

Files

  • PROMPT.md
  • contract_test.go
  • csx.json
  • go.mod
  • go.sum
  • spec.json

Download the source artifact (tar.gz)

Origin Seeder

anonymous