supavisor
sqlparser-rs
supavisor | sqlparser-rs | |
---|---|---|
15 | 12 | |
1,591 | 2,443 | |
1.8% | 2.4% | |
8.9 | 9.3 | |
2 days ago | 4 days ago | |
Elixir | Rust | |
Apache License 2.0 | Apache License 2.0 |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
supavisor
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PostgreSQL Is Enough
WalEx instead of pub/sub (listen/subscribe): https://github.com/cpursley/walex
Supavisor connection pooler: https://github.com/supabase/supavisor
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Introducing Read Replicas
To make use of your read replicas, copy your connection string for the read replica, update your apps to use the new read replica and you are done! A unique connection pool is also provisioned for each read replica via Supavisor.
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Supavisor 1.0: a scalable connection pooler for Postgres
[I'm on the supabase team]
You can find the code/docs here: https://github.com/supabase/supavisor
This release adds support for
- SQL Parsing
- Load balancing
- support for named prepared statement
- query cancellation
It's also now available on all new databases in Supabase. For some more background on scalability, we have some benchmarks available here:
https://supabase.com/blog/supavisor-1-million
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PgBouncer 1.21.0 released with prepared statement support
PgBouncer maintainer here, so obviously biased. But I think currently PgBouncer should still be the default connection pooler that you choose. There's a few newer options: Odyssey, pgcat, and supavisor. But all focus on a solving 1 or 2 specific problems that PgBouncer did not solve well, while not solving many of the other problems that PgBouncer does solve. So if you have the exact same requirements as the authors of those tools, then switching might be good. But otherwise you should probably continue using PgBouncer.
Supavisor specifically is really immature. It's missing some really core functionality like query cancellations: https://github.com/supabase/supavisor/issues/174
I did a talk on this exact topic at PGConf NYC recently. My slides are here: https://github.com/JelteF/slides/raw/main/2023-10-05-future-...
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Supavisor: Scaling Postgres to 1 Million Connections
If you are interested in exploring Supavisor's potential or want to implement its scalability in your upcoming project, check out the GitHub repository to know more.
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How to Listen to Database Changes Using Postgres Triggers in Elixir
Phoenix.PubSub is basically a noop service. It really just works. You should try it!
If discovering nodes is difficult in your env, try using a listen/notify libcluster strategy:
https://github.com/supabase/supavisor/blob/main/lib/cluster/...
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The Database Package Manager for PostgreSQL Trusted Language Extensions
[2] https://github.com/supabase/supavisor
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Supabase Logs: open source logging server
Supavisor
- Supavisor - Postgres connection pooler written in Elixir
- Supavisor - a Postgres connection pooler written in Elixir
sqlparser-rs
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Introducing SQLPage : write websites entirely in SQL
sqlparser to parse SQL queries and detect variable bindings
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Understanding the SQL AST and what can be done with it
So to start with this, I looked into SQL parsing and found this library https://github.com/sqlparser-rs/sqlparser-rs
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Supabase Logs: open source logging server
We switched to an open source alternative, the rust-based sqlparser-rs library, contributing a few updates for the BigQuery dialect.
- Parsing SQL with Rust
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Writing a SQL LS in Rust - Looking for Coding Companions.
I have experience with sqlparser-rs (for my sqlpage project), but it does not track the source code location of the parsed data structures (yet).
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Pure Python Distributed SQL Engine
It uses https://github.com/sqlparser-rs/sqlparser-rs as the parser and lexer. The binder, planner, optimizer and executor are in Python. The optimizer stage only works on the logical plan and the rules are heuristic only.
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Parsing / Recursive Descent Parser
That code could be copied directly from some real-world examples - sqlparser-rs code looks pretty much exactly the same.
https://github.com/sqlparser-rs/sqlparser-rs
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RisingLight is an OLAP database system for educational purpose
Also neat to find the SQL parser library they use.
- We Went All in on Sqlc/Pgx for Postgres and Go
- “Swift is the only language I could find with over 100 keywords”
What are some alternatives?
pgcat - PostgreSQL pooler with sharding, load balancing and failover support.
sled - the champagne of beta embedded databases
pg_tle - Framework for building trusted language extensions for PostgreSQL
goyesql - Parse SQL files with multiple named queries and automatically prepare and scan them into structs.
mssql-changefeed
sqlite
debezium - Change data capture for a variety of databases. Please log issues at https://issues.redhat.com/browse/DBZ.
kube - Rust Kubernetes client and controller runtime
sql-examples - Curated list of SQL to help you find useful script easily 🚀
prettytable-rs - A rust library to print aligned and formatted tables
walex - Postgres change events (CDC) in Elixir
go - The Go programming language