pg_ivm
noria
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pg_ivm | noria | |
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19 | 26 | |
774 | 4,925 | |
9.9% | 1.0% | |
6.3 | 0.0 | |
about 1 month ago | over 2 years ago | |
C | Rust | |
GNU General Public License v3.0 or later | Apache License 2.0 |
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pg_ivm
- Postgres is eating the database world
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What Is Incremental View Maintenance (IVM)?
FTA, because I don't like Jeopardy questions in headlines:
“Incremental View Maintenance (IVM) provides a method for keeping materialized views current by calculating and applying only the incremental changes, as opposed to the complete recomputation of contents performed by the REFRESH MATERIALIZED VIEW command.”
Article shows using the pg_ivm Postgres extension available here: https://github.com/sraoss/pg_ivm
- Pg_ivm: Incremental View Maintenance as a Postgres Extension
- Anyone have experience with incremental materialized views in postgres?
- Incremental View Maintenance for PostgreSQL
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a temporary-ish table vs materialize view?
There is an extension that provides some limited incremental MVIEW refresh: https://github.com/sraoss/pg_ivm
- Features I'd Like in PostgreSQL
- IVM (Incremental View Maintenance) Implementation as a PostgreSQL Extension
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Materialized View: SQL Queries on Steroids
There’s awesome work being done on incremental view maintenance in postgres:
https://github.com/sraoss/pg_ivm
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Should I replace all db select query REST APIs with a single generic router ?
It makes sense to perform managed denormalization - use a materialized view or automatically refresh a table or foreign server (via FDW) using common triggers (like pg_ivm does). And it's fine to add a TTL to it and use as a read store... update on user login and make a partial index just for that. And that's how you could get CQRS...
noria
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Relational is more than SQL
> Automatically managed, application-transparent, physical denormalisation entirely managed by the database is something I am very, very interested in.
Sounds a bit like Noria: https://github.com/mit-pdos/noria
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JetBrains Noria
It feels more than a little bit coincidental to call it Noria when https://github.com/mit-pdos/noria exists (and has been posted about here on HN)... especially with the whole bit about incrementally computing changes.
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Uplevel database development with DataSQRL: A compiler for the data layer
Is this similar in spirit to Noria?
https://github.com/mit-pdos/noria
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Dozer: A scalable Real-Time Data APIs backend written in Rust
I assume you have studied Noria? https://github.com/mit-pdos/noria
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What are the Rust databases and their benefits?
If you want to look how databases are implemented in rust try https://github.com/mit-pdos/noria
- Materialized View: SQL Queries on Steroids
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Measuring how much Rust's bounds checking actually costs
Only tangentially related, but I wondered what were the difference between ReadySet and Noria, and they address this exact question in their repository I'm really glad to know that the ideas behind Noria didn't die when Noria was abandoned after /u/jonhoo graduated.
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PlanetScale Boost serves your SQL queries instantly
:wave: Author of the paper this work is based on here.
I'm so excited to see dynamic, partially-stateful data-flow for incremental materialized view maintenance becoming more wide-spread! I continue to think it's a _great_ idea, and the speed-ups (and complexity reduction) it can yield are pretty immense, so seeing more folks building on the idea makes me very happy.
The PlanetScale blog post references my original "Noria" OSDI paper (https://pdos.csail.mit.edu/papers/noria:osdi18.pdf), but I'd actually recommend my PhD thesis instead (https://jon.thesquareplanet.com/papers/phd-thesis.pdf), as it goes much deeper about some of the technical challenges and solutions involved. It also has a chapter (Appendix A) that covers how it all works by analogy, which the less-technical among the audience may appreciate :) A recording of my thesis defense on this, which may be more digestible than the thesis itself, is also online at https://www.youtube.com/watch?v=GctxvSPIfr8, as well as a shorter talk from a few years earlier at https://www.youtube.com/watch?v=s19G6n0UjsM. And the Noria research prototype (written in Rust) is on GitHub: https://github.com/mit-pdos/noria.
As others have already mentioned in the comments, I co-founded ReadySet (https://readyset.io/) shortly after graduating specifically to build off of Noria, and they're doing amazing work to provide these kinds of speed-ups for general-purpose relational databases. If you're using one of those, it's worth giving ReadySet a look to get these kinds of speedups there! It's also source-available @ https://github.com/readysettech/readyset if you're curious.
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PlanetScale Boost
It seems similar to MIT's Noria [1]
> Noria is a new streaming data-flow system designed to act as a fast storage backend for read-heavy web applications based on Jon Gjengset's Phd Thesis, as well as this paper from OSDI'18. It acts like a database, but precomputes and caches relational query results so that reads are blazingly fast. Noria automatically keeps cached results up-to-date as the underlying data, stored in persistent base tables, change. Noria uses partially-stateful data-flow to reduce memory overhead, and supports dynamic, runtime data-flow and query change.
[1] https://github.com/mit-pdos/noria
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OctoSQL allows you to join data from different sources using SQL
Materialize is really neat, also checkout https://github.com/mit-pdos/noria. It inverts the query problem and processes the data on insert. Exactly like what most applications end up doing using a no-sql solution.
What are some alternatives?
prawn-stack - A pageview counter using the AWS free tier, Postgres, Node and React
zombodb - Making Postgres and Elasticsearch work together like it's 2023
materialize - The data warehouse for operational workloads.
timely-dataflow - A modular implementation of timely dataflow in Rust
pg_hint_plan - Extension adding support for optimizer hints in PostgreSQL
realtime - Broadcast, Presence, and Postgres Changes via WebSockets
contour - Contour is a Kubernetes ingress controller using Envoy proxy.
TablaM - The practical relational programing language for data-oriented applications
pg_jsonschema - PostgreSQL extension providing JSON Schema validation
readyset - Readyset is a MySQL and Postgres wire-compatible caching layer that sits in front of existing databases to speed up queries and horizontally scale read throughput. Under the hood, ReadySet caches the results of cached select statements and incrementally updates these results over time as the underlying data changes.
OpenLogReplicator - Open Source Oracle database CDC
mysql-live-select - NPM Package to provide events on updated MySQL SELECT result sets