user avatar
Amree Zaid 🍉
@AmreeZaid
@michristofides Btw, I am a fan of @pgMustard. Awesome software, helped me couple of times before.
2

Nov 12, 2025

Ben Skelton
Ben Skelton

Developer, In Store Reviews

Have you tried pgMustard? It's great for quick query optimisation
Ben Skelton
Ben Skelton

Developer, In Store Reviews

Have you tried pgMustard? It's great for quick query optimisation

Oct 28, 2025

Oct 28, 2025

Abhinav Tiwari
Abhinav Tiwari

SQL Server & PostgreSQL DBA at Toll Group

Thank you for making such good tool. I have solved numerous problem using it. The good part is, the STAR it shows for a problem. 9.9 times out of 10 its does the best bet.

Abhinav Tiwari
Abhinav Tiwari

SQL Server & PostgreSQL DBA at Toll Group

Thank you for making such good tool. I have solved numerous problem using it. The good part is, the STAR it shows for a problem. 9.9 times out of 10 its does the best bet.

Jun 20, 2025

Jun 20, 2025

user avatar
Lukas Ender 💡👷‍♂️🌱
@lukasender
Learnings: ✅ Postgres has all you need ✅ FKs are not fast(er) out-of-the-box ✅ measure before *and* after adding an index! You can't just slap an index on every column. It may not help at all, or worse, make things slower! ✅ @pgMustard is great 😊
2

Jun 19, 2024

user avatar
Adrian
@adriangb01
I have nothing but good things to say about pgMustard. They implemented a nontrivial feature in days and it is exactly what I asked for. I was able to delete and simplify my code without reworking it. Amazing work. cc @samuel_colvin twitter.com/pgMustard/status/1763103511951065374
7

Mar 12, 2024

user avatar
sjivan
@sjivan
@tobias_petry @IndexingBook @pgMustard Yes, I've used all of them and pgMustard is great. I still like to know all the details of the workings of the plan 😃
1

Mar 8, 2024

user avatar
ramy.co
@ramykhuffash
I was struggling with some slow DB queries and ChatGPT wasn't much help I'm now using @pgMustard with Django Debug Toolbar and have a much better idea at what steps to take to speed things up Great work @michristofides 👏
7

Jan 22, 2024

 Frank Kumro @frigidcode
Frank Kumro @frigidcode
PG Mustard is a great tool, well worth the very cheap cost for a year. #PostgreSQL
 Frank Kumro @frigidcode
Frank Kumro @frigidcode
PG Mustard is a great tool, well worth the very cheap cost for a year. #PostgreSQL

Jan 14, 2024

Jan 14, 2024

user avatar
Adam Johnson
@AdamChainz
✍️ New post covering a situation where I disabled the #PostgreSQL JIT to speed up some queries in a #Django project. @pgMustard was very useful for discovering the problem and giving advice! adamj.eu/tech/2023/11/09/django-disable-postgresql-jit
49

Nov 9, 2023

user avatar
Andrew Atkinson
@andatki
Part 1 #PostgreSQL query optimization. Started at 20s. Analyzed query plan + all tables/fields/conditions. Created around 10 hypothetical indexes, single and multi. Iterated w/ @pgMustard plans. Most plan nodes now index scans or index only scans. No query changes. Down to 3s.
21

Oct 27, 2023

pgcd
pgcd
I tried it and found it VERY helpful, thanks - I'm sure I'm still missing some opportunities but what I understood from it was enough to bring the problem query down to a manageable time (2s vs 12s). Even more importantly; I can now explain to my colleagues *what* is wrong, instead of "heeehh this is too slow" =)
pgcd
pgcd
I tried it and found it VERY helpful, thanks - I'm sure I'm still missing some opportunities but what I understood from it was enough to bring the problem query down to a manageable time (2s vs 12s). Even more importantly; I can now explain to my colleagues *what* is wrong, instead of "heeehh this is too slow" =)

Jun 24, 2023

Jun 24, 2023

user avatar
Manda Putra
@_mandaputtra
Analyzing SQL performance can be hard. But, I found this website that could help read the analysis result better. Try it! - explain.depesz.com - app.pgmustard.com (paid service)
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64

Feb 16, 2023

user avatar
krishan711.eth
@krishan711
@_baretto @michristofides @pgMustard @pgMustard is a must have for me these days! I remember when @michristofides first took me through it i thought i might use it once a quarter but I've found myself using it far more frequently. Could not recommend it more!
3

Nov 9, 2022

user avatar
Magnus Falch
linkedin logo
If you are writing SQL queries for PostgreSQL you need to check out pgMustard. It's saved me several hours of debugging and optimization time. #sql #postgresql #performance
user avatar
Magnus Falch
linkedin logo
If you are writing SQL queries for PostgreSQL you need to check out pgMustard. It's saved me several hours of debugging and optimization time. #sql #postgresql #performance

Sep 3, 2022

Sep 3, 2022

user avatar
Elizabeth Garrett Christensen
@e_g_christensen
@pgMustard Your newsletter is so good! Always read the whole thing and that's pretty special considering the number of newsletters I subscribe to.
4

Aug 3, 2022

user avatar
Dorian
@dorianmariefr
So much love for @pgMustard, found a missing index and went from ~700ms to ~15ms ❤️
7

Jul 11, 2022

user avatar
RustProof Labs 🐘
@RustProofLabs
@driscollis Software I install: Sublime Text Software someone else runs: @pgMustard
3

May 7, 2022

user avatar
Tobias_Petry.sql
@tobias_petry
I really like the newsletter @michristofides is sending each month. He is curating so many good articles for each issue! I only read two (!) PostgreSQL newsletters, the other one is Postgres Weekly. That speaks for itself! pgmustard.com/newsletter
32

May 6, 2022

user avatar
Sparky
@sparkyuk11
@tobias_petry @michristofides The pgMustard tool is also amazing. Wish it worked for MySQL too.
2

May 6, 2022

user avatar
Everett 🇺🇦
@retttx
@paulbiggar @michristofides @thinkx any leads? Also try pgmustard to get a start on which parts of your queries are slow
4

Mar 16, 2022

user avatar
jj@::1$ ☁️🛠🧯
@thejtoken
If you are a PostgreSQL person this is a handy tool to understand EXPLAIN pgMustard pgmustard.com
3

Mar 5, 2022

user avatar
Jamie Lawrence
@ideasasylum
This insight was brought to me by @pgMustard
6

Feb 21, 2022

user avatar
James Jefferies
@jamesjefferies
@andycroll glad you got it sorted - I’ve found @pgMustard an absolute winner for issues with queries - deffo worth a look if you haven’t already..
2

Jan 27, 2022

user avatar
Michael W. Arnold
@marmanold
Y’all, if you’re working with Postgres pgMustard is a must. It’s taught me so much about how Postgres works while helping me tune some pretty important queries. Worth every Euro cent! pgmustard.com
1

Dec 17, 2021

user avatar
Robert
@MrThePlague
@tobias_petry @mattkingshott I’ve played around with pgmustard.com a little bit too, and it’s pretty impressive (at least for someone who almost zero DB background 😆).
3

Dec 16, 2021

user avatar
Xoel López
@xoelipedes
The plain language tips that pgmustard.com gives you are next level, one of the best query plan visualization tools for Postgres I've seen twitter.com/pgMustard/status/1419696175347814401
10

Nov 17, 2021

user avatar
Haki
@be_haki
@xoelipedes @pgMustard are doing great work! If you review a lot of #PostgreSQL execution plans, be sure to check their EXPLAIN glossary pgmustard.com/docs/explain
4

Nov 17, 2021

Wilhelm Klopp
Wilhelm Klopp
Founder, Simple Poll
Just successfully used pgMustard to turn a 200s query into a 400ms one – now our data backfill is on track to complete in a few hours instead of days – thank you! 😍 😍 😍 😍 🙏
Wilhelm Klopp
Wilhelm Klopp
Founder, Simple Poll
Just successfully used pgMustard to turn a 200s query into a 400ms one – now our data backfill is on track to complete in a few hours instead of days – thank you! 😍 😍 😍 😍 🙏
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Nov 13, 2021

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Nov 13, 2021

user avatar
Rémy
@Xowap
@jlongster I've got no shares there but @pgMustard is your best friend. It literally helped me slash some queries runtime by a 10x or 100x factor. Surprisingly so, without creating any index. I was amazed to discover the wiggle room from settings and other subtleties.
1

Nov 6, 2021

user avatar
Jamie Lawrence
@ideasasylum
@jmcharnes You just missed a great session with me and Basil. pgMustard said my version of the query was "a very quick query" and I've never enjoyed such validation from a machine before
6

Aug 24, 2021

user avatar
Hynek Schlawack
@hynek
I have spent 2+h yesterday agonizing over postgres plans. I have shaved 200ms from a 250ms off by using pgMustard once. 😲 (I’m still getting wildly different plans in prod/on notebook on the exactly same data but meh.) twitter.com/searls/status/1402991961741545479
43

Jul 14, 2021

user avatar
Dan Diephouse
@dandiep
@searls @pgMustardApp @KameSameApp @heroku Thanks for this. It really made a big difference in a query I was having problems with.
1

Jun 22, 2021

user avatar
Pat Maddox
@patmaddox
@searls @pgMustardApp the stars aligned today... I am diagnosing a slow query timeout problem. Mustard helped me find the problem and come up with a fix in a few minutes. I've done a lot of Postgres perf and tuning work over the years. Never seen anything like this. Thanks for sharing.
3

Jun 10, 2021

user avatar
Justin Searls
@searls
I refuse to invest the time to understand how SQL explain plans work, so I love how @pgMustardApp demystifies why my queries are slow for me. This query was scanning every row for "where id = 123" because on a materialized view, that ID field isn't a real PK. It needed an index!
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87

Jun 10, 2021

user avatar
Michael Koper
@michaelkoper
@heyjoshwood Pg mustard @pgMustardApp. Because it just simply told me how to improve a specific query I had trouble with.
5

May 30, 2021

user avatar
Ashish “Logmaster”
@ashishlogmaster
Using Postgres? I just learn about PgMustard. pgmustard.com/#. Looks interesting enough that I think all enterprises should buy it?
10

May 28, 2021

user avatar
Benedikt Deicke
@benediktdeicke
Can’t say this often enough, @pgMustardApp is amazing. 😩 Take a slow query 🧐 Slap `EXPLAIN (ANALYZE, FORMAT JSON, BUFFERS, VERBOSE, SETTINGS)` in front of it and run it 💪 Paste the output into the app 🤩 Get a list of todos with detailed explanations
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60

Mar 26, 2021

Mohsin Patel
Mohsin Patel
Principal Database Engineer, Auto Trader UK
pgMustard is a great product that simplifies a complicated subject area for developers and database engineers alike. It’s become a go-to product for solving query performance issues and visualising explain plans – kudos!
Mohsin Patel
Mohsin Patel
Principal Database Engineer, Auto Trader UK
pgMustard is a great product that simplifies a complicated subject area for developers and database engineers alike. It’s become a go-to product for solving query performance issues and visualising explain plans – kudos!
company logo

Mar 7, 2021

company logo

Mar 7, 2021

Michael Mauger

Michael Mauger

Data Architect, Diameter Health
First, I love your tool—it has already helped us deploy PostgreSQL successfully, and I look forward to continuing to use it as part of our relational database development process.
Michael Mauger

Michael Mauger

Data Architect, Diameter Health
First, I love your tool—it has already helped us deploy PostgreSQL successfully, and I look forward to continuing to use it as part of our relational database development process.
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Nov 9, 2020

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Nov 9, 2020

Piotr Adamiak
Piotr Adamiak
Principal PostgreSQL Consultant, Oliphant Consulting
I have to say I find your "mustard" hot stuff and really user friendly.
Piotr Adamiak
Piotr Adamiak
Principal PostgreSQL Consultant, Oliphant Consulting
I have to say I find your "mustard" hot stuff and really user friendly.
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Oct 21, 2020

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Oct 21, 2020

Hugh Neale
Hugh Neale
Director, Zercurity
pgMustard has played a huge role in helping us stay on top of our API response goals, greatly reducing database load, saving us money, and improving our overall customer experience. We're extremely happy with how quickly it helps us identify issues.
Hugh Neale
Hugh Neale
Director, Zercurity
pgMustard has played a huge role in helping us stay on top of our API response goals, greatly reducing database load, saving us money, and improving our overall customer experience. We're extremely happy with how quickly it helps us identify issues.
company logo

Jul 7, 2020

company logo

Jul 7, 2020