Elysiate blog
Practical guides for privacy-first developer tools, SEO and content operations, data and file workflows, cloud and API security, AI engineering, and sustainable freelance work. Everything here supports the same philosophy as our browser-based utilities: your data stays on your device until you choose otherwise.
For tabular data, the CSV tools hub covers validation and conversion in the browser, and the CSV topic index lists every CSV-tagged guide in one place.
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- All Function In DAX
A practical guide to the ALL function in DAX, covering filter removal, percentage-of-total patterns, ALL versus REMOVEFILTERS, common business examples, and the mistakes that confuse many Power BI users.
- When to Use B-tree vs GIN vs GiST in PostgreSQL
A practical guide to choosing between B-tree, GIN, and GiST indexes in PostgreSQL, covering what each index type is good at, common use cases, performance tradeoffs, and mistakes teams make when picking the wrong one.
- PostgreSQL with Python and SQLAlchemy Performance Guide
A practical guide to PostgreSQL with Python and SQLAlchemy performance, covering engine setup, session scope, query loading strategies, batching, indexing, transactions, and PostgreSQL-aware data access patterns.
- PostgreSQL with Node.js Performance Best Practices
A practical guide to PostgreSQL with Node.js performance best practices, covering connection pooling, query shape, batching, indexing, transactions, pagination, and production-ready data access patterns.
- PostgreSQL with .NET and Entity Framework Best Practices
A practical guide to PostgreSQL with .NET and Entity Framework best practices, covering Npgsql setup, DbContext patterns, migrations, indexing, query tuning, JSON support, and production performance.
- PostgreSQL vs MySQL for Modern Web Applications
A practical comparison of PostgreSQL vs MySQL for modern web applications, covering query capabilities, transactions, JSON features, indexing, scaling, developer experience, and which database fits which product style.
- PostgreSQL vs MongoDB for JSON-Heavy Apps
A practical comparison of PostgreSQL vs MongoDB for JSON-heavy apps, covering JSONB, document flexibility, indexing, joins, transactions, analytics, and which database fits which application style.
- PostgreSQL VACUUM and Autovacuum Explained
A practical guide to PostgreSQL VACUUM and autovacuum, covering dead tuples, table bloat, visibility maps, ANALYZE, transaction ID wraparound, and the common mistakes that make databases slower over time.
- PostgreSQL Streaming Replication Setup Guide
A practical guide to PostgreSQL streaming replication setup, covering primary and standby configuration, replication users, WAL settings, base backups, lag monitoring, and common mistakes.
- PostgreSQL Sort and GROUP BY Performance Tuning
A practical guide to PostgreSQL sort and GROUP BY performance tuning, covering sort spills, work_mem, indexes, hash versus sort aggregation, row reduction, and common query design mistakes.