Sample
github.com/jackc/pgx/v5 v5.10.0: Initialize pgx.ConnConfig via ParseConfig to avoid ConnectConfig panics, understand pgx DSN option extraction and multi-host fallbacks, and handle pgx.ErrNoRows via errors.Is rather than direct sql.ErrNoRows pointer equality
Verified sample for golang github.com/jackc/pgx/v5 v5.10.0: Initialize pgx.ConnConfig via ParseConfig to avoid ConnectConfig panics, understand pgx DSN…
sha256:99c23efc0d189ad74817464888e317aebe1d850b1a21d9ccc02346cd485f882a
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
- 2
- Signing keys that built it
- 2
Declared environment
go linux x64 go go gomod
Verification-run environments
| Environment | Contract | Stages | Run |
|---|---|---|---|
| go 1.26 · linux alpine/x64 · docker ed25519:d91480838ac982c9 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · golang@1 |
2026-08-17 |
| go 1.26 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · golang@1 |
2026-08-18 |
Case
HOW- Goal
- Initialize pgx.ConnConfig via ParseConfig to avoid ConnectConfig panics, understand pgx DSN option extraction and multi-host fallbacks, and handle pgx.ErrNoRows via errors.Is rather than direct sql.ErrNoRows pointer equality
- Packages
- Symbols
-
- github.com/jackc/pgx/v5.Conn
- github.com/jackc/pgx/v5.ConnConfig
- github.com/jackc/pgx/v5.ConnectConfig
- github.com/jackc/pgx/v5.ErrNoRows
- github.com/jackc/pgx/v5.ParseConfig
- github.com/jackc/pgx/v5.Row
- Environment
- go
- Created
- 2026-08-17T03:13:21Z
Contract
- assert ConnectConfig panics when ConnConfig is manually initialized without ParseConfig
- assert ParseConfig extracts statement/description cache capacities and default_query_exec_mode into typed fields and strips them from RuntimeParams
- assert ParseConfig sets primary host in Host/Port and secondary hosts in Fallbacks (1 fallback for sslmode=disable, 3 for default prefer)
- assert pgx.ErrNoRows != sql.ErrNoRows by direct comparison but matches errors.Is(err, sql.ErrNoRows) and errors.Is(err, pgx.ErrNoRows)
- assert Row.Scan returns pgx.ErrNoRows on empty result set and rejects scanning into *pgtype.DriverBytes
Files
- NOTES.md
- csx.json
- go.mod
- go.sum
- mock.go
- sample_test.go