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Pgloader: A High-Speed PostgreSQL Swiss Army Knife, Written in Lisp

pgloader.io Software & code Software projects Software engineering Candidate
Screenshot of pgloader.io captured 2026-07-20
Page preview · captured 2026-07-20

Resurfaced independently across 4 calendar years, with breakout response in 2 of them.

submissions
4
submitters
4
observed span
2015–2021
peak thread · 23 comments
179 pts
latest 20+ return · 2021-09-26
133 pts

Submission timeline

2007–2026

One slot for every year since HN launched. Height is that year's peak points; orange marks a 100+ point or 50+ comment breakout. Select a bar to open its strongest thread.

First comments on top threads

HN comment order

So the Quick Start is now back available at http://dimitri.github.io/pgloader/howto/quickstart.html, and I made a release with files hosted at github for your testing pleasure: https://github.com/dimitri/pgloader/releases/tag/v3.2.1.prev... You have self-contained binary files allowing you to play with /usr/bin/pgloader (or ./pgloader) without having to know anything about Common Lisp. Enjoy ;-)

dim·179-point thread·

A few years back I had some experience using this tool to migrate a MySQL database to a PostgreSQL. As far as I remember it was quite pleasant. I had the some trouble with MySQL accepting invalid dates (like 0000-00-00) while Postgres rejects such dates. However, there was an option to convert such dates to NULL which saved the day. Also you have to manually rewrite your views. Since we had a lot and also very complicated views I ended…

jabiko·133-point thread·

The first top-level comment from each of the four biggest threads, in HN’s own order. Excerpts are shortened; open a comment for full context.

Breakout years
2

100+ points or 50+ comments

Total points
322

reference only — not used in Hall rules or ranking

Total comments
35

reference only — not used in Hall rules or ranking

Every submission

DateTitle as submittedByPointsComments
2015-01-21Pgloader: A High-speed PostgreSQL Swiss Army Knife, Written in LispFirst breakout · Best threadwtbob17923
2017-11-04Pgloader: Migrate from MySQL to PostgreSQL in One Commandmabynogy90
2018-08-28PGloadertosh10
2021-09-26Pgloader: A High-Speed PostgreSQL Swiss Army Knife, Written in LispLatest 20+ point returnkesor13312