# \#database
**URL:** https://racket.discourse.group/tag/database/239.md
[Latest](https://racket.discourse.group/latest.md) · [Categories](https://racket.discourse.group/categories.md) · [Tags](https://racket.discourse.group/tags.md)
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## [Postgres and Custom Types](https://racket.discourse.group/t/postgres-and-custom-types/3996)
**Author:** [@bakgatviooldoos](https://racket.discourse.group/u/bakgatviooldoos)\
**Replies:** 3\
**Last updated:** [November 4, 2025, 5:32pm UTC](https://racket.discourse.group/t/postgres-and-custom-types/3996 "2025-11-04T17:32:09Z")
Hi, Racket Discourse. I am messing around with embeddings, and I need some help getting a custom type to work. Using the pg\_vector extension to Postgres (running version 17), I can send an embedding vector to the datab…
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## [MariaDB/MySQL database connexion error](https://racket.discourse.group/t/mariadb-mysql-database-connexion-error/3674)
**Author:** [@damien\_mattei](https://racket.discourse.group/u/damien_mattei)\
**Replies:** 6\
**Last updated:** [April 4, 2025, 1:23pm UTC](https://racket.discourse.group/t/mariadb-mysql-database-connexion-error/3674 "2025-04-04T13:23:13Z")
Hi, i'm sticked on this database connexion error when i do: (require db) ; for database connectivity (mysql-connect #:user "mattei") . . ../../../../Applications/Racket v8.14/collects/racket/private/kw.rkt:1313:23: mys…
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## [Scylla driver (Cassandra 3.4)](https://racket.discourse.group/t/scylla-driver-cassandra-3-4/3620)
**Author:** [@petter](https://racket.discourse.group/u/petter)\
**Replies:** 0\
**Last updated:** [March 12, 2025, 2:44pm UTC](https://racket.discourse.group/t/scylla-driver-cassandra-3-4/3620 "2025-03-12T14:44:24Z")
Hi, a driver for ScyllaDb (or for Cassandra with protocol 3.4). It is based on current Cassandra driver, but with some major changes. Hope others than me can use it: GitHub - pegesund/racket\_scylladb: This is a driver fo…