Data, Databases & Streaming

Relational & NoSQL databases, search, caches, streams, ETL/ELT, and analytics stacks.

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Inside Data, Databases & Streaming

Relational (SQL) Postgres/MySQL/SQLite tuning, HA/DR, indexing, and query planning. NoSQL & NewSQL Document, key-value, columnar, search, and distributed SQL engines. Search & Relevance Engineering Full-text search, ranking, synonyms, vectors, and hybrid retrieval patterns. Caching & Edge Data KV stores, CDNs, edge runtimes, and latency-first data patterns. Streaming & Queues Event streaming, pub/sub, backpressure, and consumer groups at scale. ORMs & Migrations Type-safe models, schema diffs, seed data, and multi-tenant strategies. Data Engineering & Analytics Pipelines, orchestration, dbt, warehouses, BI, and governance/lineage.

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Latest in Data, Databases & Streaming


thenewstack.io > postgres-at-scale-why-it-struggles

Postgres is struggling, but don’t rip it out just yet

27+ min ago   (576+ words) Blueconic sets this cookie as a unique identifier for the BlueConic profile. YouTube sets this cookie to manage feature rollout and experimentation. It helps Google control which new features or interface changes are shown to users as part of testing…...


dev.to > sumaninster > preventing-race-conditions-in-multi-channel-client-management-with-cas-2m8b

Preventing Race Conditions in Multi-Channel Client Management with CAS

35+ min ago   (329+ words) Traditional client management platforms often rely on application-level checks: read the current status, decide the next state, write it back. But between the read and the write, another request can slip in. The result is lost updates, duplicate notifications, or…...


dev.to > libme > postgres-let-two-rows-through-a-unique-index-the-glibc-collation-trap-after-an-os-upgrade-3ad6

Postgres Let Two Rows Through a Unique Index: The glibc Collation Trap After an OS Upgrade

1+ hour, 8+ min ago   (729+ words) I hit this after the most boring change imaginable: bumping a Docker base image from Debian 10 to Debian 12 for a staging database. The data directory was on a mounted volume, so it survived. The sort order underneath it did not....


dev.to > agenticdevops > chunked-a-document-and-found-a-new-retrieval-problem-514c

Chunked a Document and Found a New Retrieval Problem

1+ hour, 32+ min ago   (172+ words) Chunked a new draft (17 pieces, 1000 characters each with 200-character overlap) and went to embed it into the same collection from the last two entries. Hit two real snags getting there. With both of those out of the way, actually chunked…...


dev.to > spranab > a-failed-sqlite-integrity-check-on-windows-that-reported-itself-as-a-posix-lock-conflict-obn

A failed SQLite integrity check on Windows that reported itself as a POSIX lock conflict

1+ hour, 38+ min ago   (444+ words) For several hours on 2026-09-30, every memory write from a Hermes Agent install on a Windows 11 machine failed with this: The error is about POSIX advisory locks. They belong to the whole process, so if another SQLite library in the same…...


neo4j.com > blog > graph-database > multiple-databases-now-generally-available-in-auradb

Multiple databases now generally available in AuraDB

3+ hour, 3+ min ago   (635+ words) Join us for NODES 2026: Engineering better intelligence | Nov 12 | Register today We are the knowledge layer that delivers accurate, explainable, and trusted AI. AI and graph technologies give agents the understanding they need to generate trustworthy outputs, and humans the understanding…...


dev.to > furqank729 > build-a-minimal-ai-rank-tracker-in-python-3df1

Build a Minimal AI Rank Tracker in Python

7+ hour, 27+ min ago   (586+ words) If you've ever typed "best X for Y" into ChatGPT to see whether your product shows up, you've already done AI rank tracking, just with a sample size of one. This post builds a small Python tracker that does it…...


dev.to > georgi_kalchev_85d01f7368 > d1-migrations-the-table-rebuild-that-d1-rejects-3e46

D1 migrations: the table rebuild that D1 rejects

1+ hour, 45+ min ago   (206+ words) Claude Sonnet and Haiku both rebuilt a referenced table the one way Cloudflare D1 refuses, and so did our first draft. A closing pragma hides the pro…. Tagged with cloudflare, sqlite, testing, modelcomparison. Claude Sonnet and Haiku both rebuilt a referenced…...


medium.com > engineering-playbook > your-database-wasnt-slow-your-backend-architecture-was-making-it-look-slow-3a06133a70b1

Your Database Wasn’t Slow. Your Backend Architecture Was Making It Look Slow.

2+ hour, 26+ min ago   (1571+ words) Nobody has looked at the actual SQL yet. The uncomfortable possibility is that your database is doing exactly what you told it to do. And your application is telling it to do something stupid. Imagine a Spring Boot application with…...


dev.to > nyaomaru > migrating-a-real-typescript-oss-library-from-tsup-to-tsdown-5b80

Migrating a Real TypeScript OSS Library from tsup to tsdown

3+ hour, 33+ min ago   (1653+ words) The config migration was small. Preserving the package contract was the interesting part. I'm @nyaomaru, a frontend engineer who enjoyed looking for fungus this season. 😸🍄 Recently, I migrated its build setup from tsup to tsdown. At first, I expected this…...