temporal_tables
pgkit
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| temporal_tables | pgkit | |
|---|---|---|
| 6 | 7 | |
| 576 | 28 | |
| 4.0% | - | |
| 4.9 | 7.5 | |
| 5 months ago | 7 months ago | |
| PLpgSQL | Python | |
| GNU General Public License v3.0 or later | MIT License |
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temporal_tables
- PostgreSQL temporal_tables extension in PL/pgSQL
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Versioning data in Postgres? Testing a Git like approach
It was reimplemented in pure SQL here https://github.com/nearform/temporal_tables for this purpose
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All the ways to capture changes in Postgres
I enjoyed this blog. I think it provides a great succinct overview of various approaches native to Postgres.
For the "capture changes in an audit table" section, I've had good experiences at a previous company with the Temporal Tables pattern. Unlike other major RDBMS vendors, it's not built into Postgres itself, but there's a simple pattern [1] you can leverage with a SQL function.
This allows you to see a table's state as of a specific point in time. Some sample use cases:
- "What was this user's configuration on Aug 12?"
- "How many records were unprocessed at 11:55pm last night?"
- "Show me the diff on feature flags between now and a week ago"
[1]: https://github.com/nearform/temporal_tables
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Show HN: I made a CMS that uses Git to store your data
One of these Postgres-based implementations of SQL:2011's temporal versioning features might get you close enough:
- https://github.com/nearform/temporal_tables
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How to implement row changes history?
You don't really need to install an extension to use temporal tables, there is an alternative (https://github.com/nearform/temporal_tables) implemented purely as a plpgsql trigger so that it works everywhere.
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Temporal Tables PostgreSQL Extension
I was part of a team at NearForm using this for a project on an EC2 instance. In order to move to AWS RDS we had to recreate the functionality of temporal_tables as a PostgreSQL function, rather than extension.
When we switched, we found that although there were minor bugs, we didn't have any noticeable loss of performance and we have used it ever since for many projects.
https://github.com/nearform/temporal_tables
If you're also limited by cloud services and the extensions limitations, this is a great solution.
pgkit
- Versioning data in Postgres? Testing a Git like approach
- A PostgreSQL Docker container that automatically upgrades PostgreSQL
- [🅿🅶🅺🅸🆃] Pgkit - Postgres Backup, PITR and recovery management made easy
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[🅿🅶🅺🅸🆃] Pgkit - Backup, PITR and recovery management made easy
Check the demo: https://github.com/SadeghHayeri/pgkit
What are some alternatives?
temporal_tables - Temporal Tables PostgreSQL Extension
docker-postgres-upgrade - a PoC for using "pg_upgrade" inside Docker -- learn from it, adapt it for your needs; don't expect it to work as-is!
walex - Postgres change events (CDC) in Elixir
pgreplay - pgreplay reads a PostgreSQL log file (*not* a WAL file), extracts the SQL statements and executes them in the same order and relative time against a PostgreSQL database cluster.
pg-event-proxy-example - Send NOTIFY and WAL events from PostgreSQL to upstream services (amqp / redis / mqtt)
PostgreSQL-Disaster-Recovery-With-Barman - A complete end-end project that demonstrates the 'Traditional backup with WAL streaming' architecture implementation (Backup via rsync/SSH + WAL streaming). This is chosen as it provides incremental backup/restore & a bunch of other features.
maxwell - Maxwell's daemon, a mysql-to-json kafka producer
docker-pgautoupgrade - A PostgreSQL Docker container that automatically upgrades your database
connectors - Connectors for capturing data from external data sources
simonwillisonblog-backup - Backups of the database for simonwillison.net
wasmer.io - The Wasmer.io website
aquameta - Web development platform built entirely in PostgreSQL