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json
3 postsJuly 2026
Apache Iceberg's Variant Type: How Shredding Speeds Up JSON Analytics
Apache Iceberg v3's Variant type and shredding technique make JSON data both flexible and fast to query. Here's how it works under the hood.
Generating TypeScript Types from JSON Without Missing Optional Fields
Most JSON-to-TypeScript tools infer structure from a single array element, mistyping optional fields. Correct conversion merges keys across every sample.
Getting JSON Out of Claude: Prefills Are Dead, Here's What Works
Assistant-turn prefills now throw 400 errors on newer Claude models. Here's how structured outputs and tool use replace the old JSON-forcing trick.