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pq - A pure Go postgres driver for Go's database/sql package


go get


package main

import (
    _ ""

func main() {
    db, err := sql.Open("postgres", "user=pqgotest dbname=pqgotest sslmode=verify-full")
    // ...

Connection String Parameters

These are a subset of the libpq connection parameters. In addition, a number of the environment variables supported by libpq are also supported. Just like libpq, these have lower precedence than explicitly provided connection parameters.


  • dbname - The name of the database to connect to
  • user - The user to sign in as
  • password - The user's password
  • host - The host to connect to. Values that start with / are for unix domain sockets. (default is localhost)
  • port - The port to bind to. (default is 5432)
  • sslmode - Whether or not to use SSL (default is require, this is not the default for libpq) Valid values are:
    • disable - No SSL
    • require - Always SSL (skip verification)
    • verify-full - Always SSL (require verification)

See to learn how to use with pq through the database/sql package.


go test is used for testing. A running PostgreSQL server is required, with the ability to log in. The default database to connect to test with is "pqgotest," but it can be overridden using environment variables.


PGHOST=/var/run/postgresql go test pq


  • SSL
  • Handles bad connections for database/sql
  • Scan time.Time correctly (i.e. timestamp[tz], time[tz], date)
  • Scan binary blobs correctly (i.e. bytea)
  • pq.ParseURL for converting urls to connection strings for sql.Open.
  • Many libpq compatible environment variables
  • Unix socket support

Future / Things you can help with

  • Notifications: LISTEN/NOTIFY
  • hstore sugar (i.e. handling hstore in rows.Scan)

Thank you (alphabetical)

Some of these contributors are from the original library bmizerany/pq.go whose code still exists in here.

  • Blake Gentry (bgentry)
  • Brad Fitzpatrick (bradfitz)
  • Daniel Farina (fdr)
  • Everyone at The Go Team
  • Federico Romero (federomero)
  • Heroku (heroku)
  • Keith Rarick (kr)
  • Mike Lewis (mikelikespie)
  • Ryan Smith (ryandotsmith)
  • Samuel Stauffer (samuel)
  • notedit (notedit)
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