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How to corrupt an SQLite database file

Hacker News Top ↗ · 2026-06-26 Cached

This article from SQLite's official documentation explains the various ways an SQLite database can become corrupted, such as file overwrites by rogue processes, misuse of file descriptors, and unsafe backup procedures, along with mitigation strategies.

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#database

SQLite improving performance with pre-sort

Hacker News Top ↗ · 2026-06-26 Cached

This article demonstrates that pre-sorting random data before inserting into SQLite can improve insert performance by 2-3x, by leveraging the B+ Tree's ordered nature and reducing page splits.

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#database

How PgBouncer Works

Lobsters Hottest ↗ · 2026-06-26 Cached

A detailed technical guide explaining how PgBouncer works as a PostgreSQL connection pooler, covering its pooling modes, production deployment, and common pitfalls.

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#database

All you need is PostgreSQL

Lobsters Hottest ↗ · 2026-06-26 Cached

A detailed guide on using PostgreSQL as a single database to handle all aspects of a financial application, including schema design, state machines, triggers, and performance optimization.

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#database

How we made WINDOW JOIN parallel and vectorized

Hacker News Top ↗ · 2026-06-25 Cached

QuestDB introduces a dedicated WINDOW JOIN operator that is parallelized and vectorized, achieving up to 25x speedup over alternative databases for time-series aggregations around event timestamps.

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#database

Bible as RAG Database

Hacker News Top ↗ · 2026-06-25 Cached

Cross Canon offers a Bible as a RAG database, allowing users to query scripture using retrieval-augmented generation techniques.

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#database

simonw/browser-compat-db

Simon Willison's Blog ↗ · 2026-06-24 Cached

Simon Willison created a tool to convert Mozilla's browser compatibility data into a downloadable SQLite database, hosted with open CORS headers for easy exploration via Datasette Lite.

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#database

Show HN: WebBase-III – dBASE III rebuilt in the browser with its own interpreter

Hacker News Top ↗ · 2026-06-24 Cached

WebBase-III is a full recreation of dBASE III that runs in the browser, featuring its own W3Script interpreter, BROWSE grid, form engine, indexing, and persistent storage via SQLite.

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#database

@shubh6200: To understand how massive files are processed, read "Parsing Gigabytes of JSON per Second" by @geofflangdale and @lemir…

X AI KOLs Timeline ↗ · 2026-06-24 Cached

The paper presents simdjson, the first validating JSON parser capable of processing gigabytes per second on a single core using SIMD instructions, achieving substantial speedups over existing parsers like RapidJSON.

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#database

Fluree DB (GitHub Repo)

TLDR AI ↗ · 2026-06-24 Cached

Fluree DB is an open-source, temporal graph database with git-like branching, integrated vector/text/geo search, fine-grained access control, and support for SPARQL, JSON-LD, and Open Cypher. It is optimized for AI agent memory and achieves high performance on billion-scale graphs.

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#database

datasette 1.0a35

Simon Willison's Blog ↗ · 2026-06-23 Cached

Datasette 1.0a35 alpha release introduces a new create table interface and alter table JSON API, along with stable template context documentation.

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#database

British Columbia, Time Zones, and Postgres

Lobsters Hottest ↗ · 2026-06-22 Cached

Discusses how British Columbia's permanent switch to Pacific Daylight Time in 2026 affects PostgreSQL timestamp storage, and provides best practices to avoid time zone shift errors using a dual-column pattern.

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#database

@VincentLogic: The most painful thing about taking over someone else's project: opening the database, hundreds of tables, no documentation, no comments, and table names are just pinyin abbreviations. ChartDB solves this problem. Run a single SQL command to export the entire database structure and automatically generate an ER diagram. Which tables are related, how foreign keys are connected, all clear at a glance. No need...

X AI KOLs Timeline ↗ · 2026-06-22 Cached

ChartDB is a free and open-source tool that allows you to export the entire database structure by running a single SQL command, automatically generating an ER diagram. It supports multiple databases and has built-in AI natural language query functionality to help developers quickly understand database table relationships.

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#database

Show HN: Write SaaS apps where users control where their data is stored

Hacker News Top ↗ · 2026-06-19 Cached

LinkedRecords is a NoSQL database that enables developers to build SaaS apps where users control where their data is stored, connecting directly from single-page applications without requiring backend code.

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#database

Infinite

Product Hunt ↗ · 2026-06-16

Infinite is an open-source runtime that unifies Google Analytics 4, PostHog, and Stripe data into a local database, providing a unified view for analytics and payment data.

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#database

@Greptime: GreptimeDB v1.1: you no longer have to lock in a table's partition layout when you create it. Before, only tables creat…

X AI KOLs Following ↗ · 2026-06-16 Cached

GreptimeDB v1.1 introduces online repartitioning for existing tables, incremental Flow reads, a semantic layer for LLMs, and stability improvements.

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#database

Cleo: trying to fit full analyst behavior in a 2B model [P]

Reddit r/MachineLearning ↗ · 2026-06-15

Cleo is a finetuned version of Qwen3.5-2B-Base designed for text-to-SQL tasks, using a unified harness for training and inference that supports live execution evidence and safety checks. All code, model, and datasets are open-source.

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#database

How TimescaleDB compresses time-series data

Hacker News Top ↗ · 2026-06-15 Cached

This article explains how TimescaleDB's hypercore engine achieves up to 98% compression for time-series data using columnar storage and specialized algorithms like delta encoding and Gorilla XOR, and contrasts it with PostgreSQL's TOAST.

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#database

@Greptime: GreptimeDB v1.1.0 is out PromQL rate/increase up to 97% faster, 20–40% lower query time overall Up to 4.5x faster on TS…

X AI KOLs Following ↗ · 2026-06-15 Cached

GreptimeDB v1.1.0 is released, offering up to 97% faster PromQL queries, 20-40% lower overall query times, and up to 4.5x improvement on TSBS scan-heavy queries, along with online repartitioning for existing tables.

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#database

We built SmithDB, the data layer for agent observability

Lobsters Hottest ↗ · 2026-06-15 Cached

LangChain announces SmithDB, a purpose-built distributed database for agent observability that powers LangSmith, offering up to 12x performance improvements and support for complex agent trace queries.

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