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PG.CENTER connects PostgreSQL documentation, reference, and ecosystem knowledge. Maintained by Pigsty.

PostgreSQL Extension Catalogue

Explore 2387 PostgreSQL extensions from PGEXT, maintained by Pigsty.

vector · vector data type and ivfflat and hnsw access methods · 0.8.6 · AI and vectors · PostgreSQL · C · Packagedgp_sparse_vector · Sparse vector implementation for Greenplum-family databases. · 1.0.1 · AI and vectors · Apache-2.0 · C · Not packagedembedding · HNSW vector similarity search extension for PostgreSQL real[] embeddings. · 0.3.6 · AI and vectors · Apache-2.0 · C · Not packagedpg_similarity · support similarity queries · 1.0 · AI and vectors · BSD-3-Clause · C · Packagedpg_gist_hamming · support for indexing common datatypes in GiST · 1.0 · AI and vectors · BSD-3-Clause · C · Not packagedvptree · VP-tree implementation · 1.0 · AI and vectors · BSD-3-Clause · C · Not packagednr_model · AI-powered Autonomous Data System · 1.0.0 · AI and vectors · Unknown · C · Not packagedsmlar · Effective similarity search · 1.0 · AI and vectors · Unknown · C · Packagedkmeans · K-means clustering window function for PostgreSQL · 1.1.0 · AI and vectors · PostgreSQL · C · Not packagedtypesafe · SQL client for TypeSafe AI classification and scoring · 0.0.1 · AI and vectors · MIT · C · Not packagedneurondb · AI database extension for vector search, ML inference, hybrid search, and RAG in PostgreSQL. · 4.0.0-devel · AI and vectors · Proprietary · C · Not packagedpase · PostgreSQL ultra-high dimensional approximate nearest neighbor search extension. · 0.0.1 · AI and vectors · Unknown · C · Not packagedpgedge_vectorizer · Asynchronous text chunking and embedding generation for PostgreSQL using background workers and pgvector. · 1.1 · AI and vectors · PostgreSQL · C · Not packagedpgafis · AFIS Support for PostgreSQL · 1.2 · AI and vectors · GPL-2.0 · C · Not packagedpg_ai · PostgreSQL extension that provides (RAG capable)SQL functions to interpret data using multi modal LLMs and vectors. · 0.0.1 · AI and vectors · Apache-2.0 · C · Not packagedpg_turboquant · Compact TurboQuant approximate-nearest-neighbor index access method for pgvector vector and halfvec data. · 0.1.0 · AI and vectors · MIT · C · Not packagedpg4ml · Machine learning framework for PostgreSQL · 2.0 · AI and vectors · AGPL-3.0 · C · Packagedpg_phash · Calculate Hamming distance between decimal-encoded perceptual image hashes · 1.0 · AI and vectors · GPL-3.0 · C · Not packagedllama_embed · llama.cpp embedding extension for dense and multivector search · 0.1.0 · AI and vectors · PostgreSQL · C · Not packagedpg_colbert_llama · ColBERT embedding companion extension for pgturbohybrid · 0.1.0 · AI and vectors · PostgreSQL · C · Not packagedpgturbohybrid · hybrid vector and BM25 search for PostgreSQL on top of pgvector · 0.2.0 · AI and vectors · PostgreSQL · C · Not packagedpgturbohybrid_experimental · experimental sparse and multivector features for pgturbohybrid · 0.2.0 · AI and vectors · PostgreSQL · C · Not packagedmaludb_core · A memory DBMS for long-term institutional memory, human-AI knowledge sharing, and contextual recall. PostgreSQL 17 extension. · 0.104.0 · AI and vectors · Unknown · C · Not packagedpg_semantic_cache · Caches query results and retrieves semantically similar results using pgvector embeddings and configurable eviction policies. · 0.1.0-beta4 · AI and vectors · PostgreSQL · C · Not packagedsveddy · A PostgreSQL extension for collaborative filtering using low-rank matrix approximation techniques. · 0.1.0 · AI and vectors · MIT · C · Not packagedbktree · SP-GiST BK-tree index extension for 64-bit perceptual hashes and Hamming-distance searches. · 1.0 · AI and vectors · Unknown · C · Not packagedhamming_distance · Hamming distance and similarity functions for hexadecimal feature-vector strings. · 0.0.1 · AI and vectors · MIT · C · Not packagedpg_cuvs · ⚡ Blazing-fast GPU vector search for PostgreSQL powered by NVIDIA cuVS. · 0.5.0 · AI and vectors · PostgreSQL · C · Not packagedmtree · Metric-space index access method derived from PostgreSQL GiST · 0.0.1 · AI and vectors · Unknown · C · Not packagedpg_tiktoken_c · Fast tiktoken BPE tokenizer for PostgreSQL implemented in C · 1.1 · AI and vectors · Apache-2.0 · C · Packagedaqua · In-database neural user-defined functions for machine-learning inference. · 0.0.1 · AI and vectors · Unknown · C · Not packagedsparse_vector · C data type and functions for sparse float vectors, normalization, dot product, and cosine similarity. · 0.1 · AI and vectors · MIT · C · Not packagedsvs · SVS Vamana approximate-nearest-neighbor index with LeanVec and LVQ compression for pgvector. · 0.1.0 · AI and vectors · PostgreSQL · C · Not packagedhclust · C function for agglomerative or divisive hierarchical clustering that writes cluster assignments back to a table. · 0.0.1 · AI and vectors · Unknown · C · Not packagedpaves · Filtered L2 vector search with CPU and optional GPU execution · 0.1 · AI and vectors · Unknown · C · Not packagedpg_pageindex · PageIndex document-tree construction and tree search for PDF and Markdown through a C/Go bridge. · 1.0 · AI and vectors · MIT · C · Not packagedpostgresml · Exposes tsvector lexemes and position counts for an experimental naive Bayes text-classification demo. · 1.0 · AI and vectors · Unknown · C · Not packagedalloydb_scann · AlloyDB ScaNN extension for approximate nearest-neighbor vector indexes. · AI and vectors · Unknown · C · Not packagedalohadb_nl2sql · Natural language to SQL translation via LLM API · 1.0 · AI and vectors · MIT · C · Not packagedaws_ml · Amazon Aurora PostgreSQL extension for invoking Amazon Comprehend, SageMaker AI, and Bedrock services from SQL. · 2.0 · AI and vectors · Unknown · C · Not packagedazure_ai · Azure Database for PostgreSQL extension for in-database calls to Azure AI, Azure OpenAI, Cognitive Services, and Azure Machine Learning. · 2.0.0 · AI and vectors · Unknown · C · Not packagedcatboost · machine learning module using CatBoost · 0.1 · AI and vectors · Unknown · C · Not packagedglia · A PostgreSQL extension for data mining. · 0.0.1 · AI and vectors · AGPL-3.0 · C · Not packagedgoogle_ml_integration · Google Cloud machine learning integration extension for registering model endpoints, generating embeddings, and invoking predictions from SQL. · 1.4.3 · AI and vectors · Unknown · C · Not packagedpg_diskann · Azure Database for PostgreSQL extension for DiskANN approximate-nearest-neighbor vector indexes. · 0.6.5 · AI and vectors · Unknown · C · Not packagedpg_gembed · Generate embeddings inside PostgreSQL · 1.0.0 · AI and vectors · Apache-2.0 · C · Not packagedpg_hybrid · hybrid storage engine: columnar, vector, fulltext · 1.0 · AI and vectors · Apache-2.0 · C · Not packagedpg_kmersearch · A PostgreSQL extension adding 2 datatypes of 2-bit or 4-bit per 1-mer for nucleotide sequence data and GIN index based on k-mer · 1.0 · AI and vectors · MIT · C · Not packagedpgchy_similarity · Chemical structure similarity functions for PostgreSQL using Chython and PL/Python. · 1.0 · AI and vectors · MIT · C · Not packagedpgv · Minimal vector extension · 0.0.1 · AI and vectors · Unknown · C · Not packagedpgvecutils · This project is a PostgreSQL extension that provides vector manipulation utilities. · 0.0.1 · AI and vectors · MIT · C · Not packagedrds_ai · Alibaba Cloud RDS extension for calling LLMs, generating embeddings, semantic retrieval, and end-to-end RAG from SQL · 1.0.0 · AI and vectors · Unknown · C · Not packagedrds_embedding · Alibaba Cloud RDS text-to-vector model invocation extension · 1.0 · AI and vectors · Unknown · C · Not packagedtencentdb_ai · TencentDB extension for calling large-model APIs and building in-database RAG workflows. · 1.3 · AI and vectors · Unknown · C · Not packaged

54 extensions found. Clear filters

NameVersionDescriptionCategoryLicenseLanguagePG VersionStars
pgvecutils 0.0.1 This project is a PostgreSQL extension that provides vector manipulation utilities. RAG MIT C
rds_ai 1.0.0 Alibaba Cloud RDS extension for calling LLMs, generating embeddings, semantic retrieval, and end-to-end RAG from SQL RAG C 14–18
rds_embedding 1.0 Alibaba Cloud RDS text-to-vector model invocation extension RAG C 14–17
tencentdb_ai 1.3 TencentDB extension for calling large-model APIs and building in-database RAG workflows. RAG C 14–18