I'm late, but yeah, default to postgreSQL -- Re: Choice of DB
От | jbullock |
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Тема | I'm late, but yeah, default to postgreSQL -- Re: Choice of DB |
Дата | |
Msg-id | 06228a70-b680-721d-ce7f-0232ec2fdef9@rare-bird-ent.com обсуждение исходный текст |
Ответ на | Re: Choice of DB (Nico Callewaert <app.development1972@gmail.com>) |
Список | pgsql-novice |
I'm late but the other folks hit the high points: PostgreSQL is kinda the default if you're serious. Don't need a reason to use it; need a reason to use anything else. - Category-defining GIS. - Integrity and intelligent data-wrangling features in the DBMS. Conveniently use as much of that as you want. (I'm a purist on this stuff.) - Regular, robust development n users communities. If there's a new feature or capability that's useful, it'll get built into postgreSQL. FWIW the supporting tools are quite good. One startup in my home city runs entirely on postgreSQL, wrangled entirely w/ pgadmin4. Thousands of multi-tenanted customers over a few years. If you want to go hard core, pgmodeler is as extensive and robust a design n diagramming tool as I've seen: on a par with $1,000's / seat commercial tools. /Use Profile I consistently advise start-ups: default to postgreSQL unless you have a real, demonstrable reason why you need something it doesn't do. And for planning purposes, if you really need something else: - It's probably about 20 / 80, the weird stuff you need the special thing for vs. the rest of your activity. - It's better than even money you'll push the "mundane" stuff into postgreSQL. Architecture is a solution: components are choices. Understand what you need to do, and the rest will follow. /Meta In general, for decisions like this, when there's a pain point with the tech -- and every fanboi for whatever you don't pick will whine about everthing that's "easier" in their pet thing -- ask: "Compared to what?" "What am I giving up to get that? I usually ain't worth it. At worst, grab a point solution for that one piece of work. Also, look at your whole tech life-cycle and business road map. Yeah, you can get hit / page / render gong in no time with a key / value store, or document database. And it'll scale like crazy. And then, what doesn't it do so well, that you have to deal with later? Everything your dbms doesn't do for you wrangling schema, coordination, data integrity, etc, you'll have to deal with in the app. Fro example, "eventually consistent" is a lovely thing. And there's a reason NetFlix published a dozen or so architecture papers on how to make their systems hosted on then-AWS (may have been OBE in the meanwhile) reliable and robust enough to run their consumer streaming media delivery. /Examples Take a look at RedFin "back in the day" migrating from mySQL to postgreSQL, maybe 10 years ago. Entire migration / conversion tracked in their company blogs. Similarly, "back in the day" the default, and why would you need anything else under Rails was mySQL. That migrated, so postgreSQ for the usual reasons. - Jim On 11/27/18 5:03 PM, Nico Callewaert wrote: > Hi to everybody who answered ! > > I've read each answer very well. Thanks a lot to everybody for taking > the time to reply. It's very encouraging to read that PostgreSQL is > doing so well. The choice is made :-) > Nice to read all that information. > > Thanks and best regards! > > Op di 27 nov. 2018 om 22:32 schreef James Keener <jim@jimkeener.com > <mailto:jim@jimkeener.com>>: > > In my experience with high volume ecommerce and location tracking > systems is that PostgreSQL performed more than adequately. > Especially given that I trust PostgreSQL and I _do not_ trust > MySQL/MariaDB at all to have any data integrity, even the most > recent versions. > > I've had databases sized into the 100s of GB run perfectly well, but > those are relatively small. I've heard reports from larger > installations that PostgreSQL keeps chugging. > > Additionally, the additional features of PostgreSQL over > MySQL/MariaDB are really night and day and much more complete and > useful, such as window functions, check constraints, json datatype, > triggers, transition tables, plpgsql, proper transactions, > expression indecies, better explain output, ranged types and > indecies, richer datatypes, GIN/GIST searches, sane decisions in > terms of type handing and automatic casting, as well as all of the > extensions available including my favourites: PostGIS and pg-routing. > > Every time I have to use MySQL, I end up wishing I had the power of > PostgreSQL, because I either have to be painful and inefficient, or > I have to accept a lesser end-product. (I literally don't have any > nice things to say about MySQL or MariaDB other than "it doesn't > always break". I've been burned many times by it.) > > Moreover, between recent features such as partitioning updates and > logical replication, scaling horizontally is becoming easier and easier. > > Also, Amazon is in the process of moving all of their Oracle-based > ERP systems to PostgreSQL (via their Aurora product). Despite one > news story based on a journalist's misunderstanding, the transition > appears to be going well, but they're not rushing it, so they won't > be off until 2020. (That was the last date I've heard.) > > The "scary" uber story boils down to two things, from my outsider > understanding: > > 1) They had a lot of long-running, dependent transactions due to > poor coding, which obviously led to poor performance, and would do > so with any database system. > > 2) They don't really "use" MySQL in any RDBMS sense; they basically > use it as a Key-Value store for some new database they've written > that's similar to Google's BigTable in terms of access styles. > > I wouldn't worry about Ubers missteps and problems. > > Jim > > On Tue, Nov 27, 2018 at 4:08 PM Nico Callewaert > <app.development1972@gmail.com > <mailto:app.development1972@gmail.com>> wrote: > > Hi, > > It's my first post to this list. I'm a little familiar with > PostgreSQL from the documentation but never used it yet in a > real environment. I've used the last 15 years Firebird as the > RDBMS for our ERP application. Not bad, it served us somehow ok, > but not that great either... I've grown unhappy with the product > because of the many corrupted database we encounter at customer > sites. I have plans to rewrite the ERP application and use a new > RDBMS and create a new database from scratch. And of course the > problem now is, what RDBMS to use. I know this is not an easy > question and has no straight answer. And I certainly don't want > to start a war of words of pro's and con's of database servers. > However I have to make a choice. > > First of all the Uber story scared me. Seems they went from > Postgres to MySql because of several issues. But maybe issues I > would never run into. First of all, performance is certainly > very important. It's said that MariaDB outperforms "everything", > but I'm not sure if that's a good choice. It's not like we have > a thousand simultanous users who are updating records non stop. > Most of our sites have between 10 and 50 users. Of course they > insert and update data, but not at a speed of xxx transactions > per second. They are simply users who enter quotes, orders, > delivery notes, invoices, projects, time registration of > employees on the road, etc.... > > I'm wondering if PostgreSQL outperforms Firebird in > client/server ERP applications? The big thing is, sometimes > large datasets are fetched, I'm wondering if PostgreSQL would do > better than firebird and if the performance of Postgres is fine > let's say compared to mysql or mariadb, because if the > performance won't be good, my boss would consider the migration > from firebird a total failure. > > Thanks in advance and sorry if my question doesn't fit in with > the list. > > Best regards... > -- Jim Bullock, Rare Bird Enterprises, "Conscious Development" LinkedIn: http://www.linkedin.com/in/rarebirdenterprises Listen to a round table of experts in these books from Dorset House: Roundtable on Project Management, http://www.dorsethouse.com/books/rpm.html Roundtable on Technical Leadership, http://www.dorsethouse.com/books/rtl.html
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