Infino BlogEngineering notes and anonymized case studies from the Infino team.https://infino.ai/The one idea behind our speed on Parquethttps://infino.ai/blog/the-invention-behind-our-parquet-speed/https://infino.ai/blog/the-invention-behind-our-parquet-speed/One searchable copy instead of three systems, the idea behind fast search on Parquet, plus where Solr still wins.Wed, 01 Jul 2026 00:00:00 GMTengineeringHow a full-text and vector index fits inside a valid Parquet filehttps://infino.ai/blog/search-index-inside-a-parquet-file/https://infino.ai/blog/search-index-inside-a-parquet-file/The byte layout: BM25 and vector indexes between the last row group and a rewritten footer, still readable by DuckDB.Wed, 01 Jul 2026 00:00:00 GMTengineeringWhy we added a search index to Parquet instead of designing a new formathttps://infino.ai/blog/why-parquet-not-a-new-format/https://infino.ai/blog/why-parquet-not-a-new-format/Columnar formats are bad at search, so we added an index layer instead of replacing Parquet, including where that hurts.Wed, 01 Jul 2026 00:00:00 GMTengineeringHow we built the engine: files, manifests, and stateless computehttps://infino.ai/blog/how-we-built-the-engine/https://infino.ai/blog/how-we-built-the-engine/Files, immutable manifests, and stateless compute: how the engine is assembled over object storage.Wed, 01 Jul 2026 00:00:00 GMTengineeringHow full-text, BM25, and vector search actually workhttps://infino.ai/blog/how-full-text-and-vector-search-work/https://infino.ai/blog/how-full-text-and-vector-search-work/Inverted indexes, BM25, IVF, and rank fusion, explained through how we actually built them.Wed, 01 Jul 2026 00:00:00 GMTengineeringMaking S3 the source of truth: the tricks that are not in the docshttps://infino.ai/blog/s3-source-of-truth/https://infino.ai/blog/s3-source-of-truth/Two-GET opens, a one-CAS commit, and a cache that drops RAM but keeps the file on disk.Wed, 01 Jul 2026 00:00:00 GMTengineeringLessons from building a search engine in Rusthttps://infino.ai/blog/lessons-building-search-in-rust/https://infino.ai/blog/lessons-building-search-in-rust/Why tokio drives I/O and rayon drives CPU, and the 3x to 10x cold-search regression that taught us the rule.Wed, 01 Jul 2026 00:00:00 GMTengineeringWe swapped Solr out of a real search app. Here are the numbers.https://infino.ai/blog/swapping-solr-for-infino/https://infino.ai/blog/swapping-solr-for-infino/BM25 + vectors + facets from one Parquet file, including where Solr still wins.Wed, 01 Jul 2026 00:00:00 GMTengineeringLicense-usage analytics for a design-automation startuphttps://infino.ai/blog/license-analytics-eda/https://infino.ai/blog/license-analytics-eda/A design-automation startup puts 20 years of manual EDA license analysis into queryable form.Wed, 01 Jul 2026 00:00:00 GMTcase studyProduct analytics at 25 billion events a dayhttps://infino.ai/blog/product-analytics-25b-events/https://infino.ai/blog/product-analytics-25b-events/Why a large consumer mobile app is indexing its event stream in place on S3.Wed, 01 Jul 2026 00:00:00 GMTcase studyA canonical people index for legal-techhttps://infino.ai/blog/canonical-people-index/https://infino.ai/blog/canonical-people-index/How a legal-tech company models a canonical people index on hybrid search.Wed, 01 Jul 2026 00:00:00 GMTcase studyA staging area for thirty years of court recordshttps://infino.ai/blog/court-records-staging-area/https://infino.ai/blog/court-records-staging-area/A government records modernization uses Infino as the enrichment layer between two systems of record.Wed, 01 Jul 2026 00:00:00 GMTcase study