GoKawiil
Tech News
Developers have released PRISM, an alpha-stage PostgreSQL index access method built in C that targets approximate nearest neighbor search. It combines hierarchical centroid routing, RaBitQ quantization and SIMD-optimized distance calculations, and supports dynamic inserts, updates and deletes alongside existing pgvector columns.
Manticore Search now supports built-in chunking for embedding-based vector search, letting users add a chunk_strategy option directly to a table's vector column instead of manually splitting long documents before indexing. The database can split text into pieces, embed each chunk, and search across all of them within a single table, eliminating the need for a separate chunking pipeline or secondary table. Five strategies are offered: truncate, mean, fixed, recursive, and sentence, with the latter three requiring a float_vector_array column to store multiple vectors per document.