pg_similarity

support similarity queries

Overview

ID	Extension	Package	Version	Category	License	Language
1840	pg_similarity	pg_similarity	`1.0`	RAG	BSD 3-Clause	C

Attribute	Has Binary	Has Library	Need Load	Has DDL	Relocatable	Trusted
--s-d-r	No	Yes	No	Yes	yes	no

Relationships
See Also	vector smlar fuzzystrmatch pg_trgm vchord pg_bigm citext unaccent

Packages

Type	Repo	Version	PG Major Availability	Package Pattern	Dependencies
EL	PIGSTY	`1.0`	18 17 16 15 14 13	`pg_similarity_$v*`	-
Debian	PGDG	`1.0`	18 17 16 15 14 13	`postgresql-$v-similarity`	-

Linux / PG	PG18	PG17	PG16	PG15	PG14	PG13
el8.x86_64	PGDG 1.0	PIGSTY 1.0	PIGSTY 1.0	PIGSTY 1.0	PIGSTY 1.0	PIGSTY 1.0
el8.aarch64	PGDG 1.0	PIGSTY 1.0	PIGSTY 1.0	PIGSTY 1.0	PIGSTY 1.0	PIGSTY 1.0
el9.x86_64	PGDG 1.0	PIGSTY 1.0	PIGSTY 1.0	PIGSTY 1.0	PIGSTY 1.0	PIGSTY 1.0
el9.aarch64	PGDG 1.0	PIGSTY 1.0	PIGSTY 1.0	PIGSTY 1.0	PIGSTY 1.0	PIGSTY 1.0
el10.x86_64	PGDG 1.0	PGDG 1.0	PGDG 1.0	PGDG 1.0	PGDG 1.0	PGDG 1.0
el10.aarch64	PGDG 1.0	PGDG 1.0	PGDG 1.0	PGDG 1.0	PGDG 1.0	PGDG 1.0
d12.x86_64	PGDG 1.0	PGDG 1.0	PGDG 1.0	PGDG 1.0	PGDG 1.0	PGDG 1.0
d12.aarch64	PGDG 1.0	PGDG 1.0	PGDG 1.0	PGDG 1.0	PGDG 1.0	PGDG 1.0
d13.x86_64	PGDG 1.0	PGDG 1.0	PGDG 1.0	PGDG 1.0	PGDG 1.0	PGDG 1.0
d13.aarch64	PGDG 1.0	PGDG 1.0	PGDG 1.0	PGDG 1.0	PGDG 1.0	PGDG 1.0
u22.x86_64	PGDG 1.0	PGDG 1.0	PGDG 1.0	PGDG 1.0	PGDG 1.0	PGDG 1.0
u22.aarch64	PGDG 1.0	PGDG 1.0	PGDG 1.0	PGDG 1.0	PGDG 1.0	PGDG 1.0
u24.x86_64	PGDG 1.0	PGDG 1.0	PGDG 1.0	PGDG 1.0	PGDG 1.0	PGDG 1.0
u24.aarch64	PGDG 1.0	PGDG 1.0	PGDG 1.0	PGDG 1.0	PGDG 1.0	PGDG 1.0

Package	Version	OS	ORG	SIZE	File URL
`pg_similarity_18`	1.0	`el8.x86_64`	pigsty	44.9 KiB	pg_similarity_18-1.0-2PIGSTY.el8.x86_64.rpm
`pg_similarity_18`	1.0	`el8.x86_64`	pgdg	43.2 KiB	pg_similarity_18-1.0-3PGDG.rhel8.x86_64.rpm
`pg_similarity_18`	1.0	`el8.aarch64`	pigsty	43.0 KiB	pg_similarity_18-1.0-2PIGSTY.el8.aarch64.rpm
`pg_similarity_18`	1.0	`el8.aarch64`	pgdg	40.7 KiB	pg_similarity_18-1.0-3PGDG.rhel8.aarch64.rpm
`pg_similarity_18`	1.0	`el9.x86_64`	pigsty	41.9 KiB	pg_similarity_18-1.0-2PIGSTY.el9.x86_64.rpm
`pg_similarity_18`	1.0	`el9.x86_64`	pgdg	42.6 KiB	pg_similarity_18-1.0-3PGDG.rhel9.x86_64.rpm
`pg_similarity_18`	1.0	`el9.aarch64`	pigsty	40.6 KiB	pg_similarity_18-1.0-2PIGSTY.el9.aarch64.rpm
`pg_similarity_18`	1.0	`el9.aarch64`	pgdg	41.2 KiB	pg_similarity_18-1.0-3PGDG.rhel9.aarch64.rpm
`pg_similarity_18`	1.0	`el10.x86_64`	pigsty	42.3 KiB	pg_similarity_18-1.0-2PIGSTY.el10.x86_64.rpm
`pg_similarity_18`	1.0	`el10.x86_64`	pgdg	43.6 KiB	pg_similarity_18-1.0-3PGDG.rhel10.x86_64.rpm
`pg_similarity_18`	1.0	`el10.aarch64`	pigsty	41.0 KiB	pg_similarity_18-1.0-2PIGSTY.el10.aarch64.rpm
`pg_similarity_18`	1.0	`el10.aarch64`	pgdg	42.3 KiB	pg_similarity_18-1.0-3PGDG.rhel10.aarch64.rpm
`postgresql-18-similarity`	1.0	`d12.x86_64`	pgdg	98.6 KiB	postgresql-18-similarity_1.0-9.pgdg12+1_amd64.deb
`postgresql-18-similarity`	1.0	`d12.aarch64`	pgdg	96.2 KiB	postgresql-18-similarity_1.0-9.pgdg12+1_arm64.deb
`postgresql-18-similarity`	1.0	`d13.x86_64`	pgdg	98.5 KiB	postgresql-18-similarity_1.0-9.pgdg13+1_amd64.deb
`postgresql-18-similarity`	1.0	`d13.aarch64`	pgdg	96.2 KiB	postgresql-18-similarity_1.0-9.pgdg13+1_arm64.deb
`postgresql-18-similarity`	1.0	`u22.x86_64`	pgdg	98.4 KiB	postgresql-18-similarity_1.0-9.pgdg22.04+1_amd64.deb
`postgresql-18-similarity`	1.0	`u22.aarch64`	pgdg	96.2 KiB	postgresql-18-similarity_1.0-9.pgdg22.04+1_arm64.deb
`postgresql-18-similarity`	1.0	`u24.x86_64`	pgdg	97.5 KiB	postgresql-18-similarity_1.0-9.pgdg24.04+1_amd64.deb
`postgresql-18-similarity`	1.0	`u24.aarch64`	pgdg	94.9 KiB	postgresql-18-similarity_1.0-9.pgdg24.04+1_arm64.deb

Package	Version	OS	ORG	SIZE	File URL
`pg_similarity_17`	1.0	`el8.x86_64`	pigsty	44.8 KiB	pg_similarity_17-1.0-2PIGSTY.el8.x86_64.rpm
`pg_similarity_17`	1.0	`el8.aarch64`	pigsty	42.9 KiB	pg_similarity_17-1.0-2PIGSTY.el8.aarch64.rpm
`pg_similarity_17`	1.0	`el9.x86_64`	pigsty	42.0 KiB	pg_similarity_17-1.0-2PIGSTY.el9.x86_64.rpm
`pg_similarity_17`	1.0	`el9.aarch64`	pigsty	40.6 KiB	pg_similarity_17-1.0-2PIGSTY.el9.aarch64.rpm
`pg_similarity_17`	1.0	`el10.x86_64`	pigsty	42.3 KiB	pg_similarity_17-1.0-2PIGSTY.el10.x86_64.rpm
`pg_similarity_17`	1.0	`el10.x86_64`	pgdg	43.6 KiB	pg_similarity_17-1.0-3PGDG.rhel10.x86_64.rpm
`pg_similarity_17`	1.0	`el10.aarch64`	pigsty	41.0 KiB	pg_similarity_17-1.0-2PIGSTY.el10.aarch64.rpm
`pg_similarity_17`	1.0	`el10.aarch64`	pgdg	42.3 KiB	pg_similarity_17-1.0-3PGDG.rhel10.aarch64.rpm
`postgresql-17-similarity`	1.0	`d12.x86_64`	pgdg	98.7 KiB	postgresql-17-similarity_1.0-9.pgdg12+1_amd64.deb
`postgresql-17-similarity`	1.0	`d12.aarch64`	pgdg	96.1 KiB	postgresql-17-similarity_1.0-9.pgdg12+1_arm64.deb
`postgresql-17-similarity`	1.0	`d13.x86_64`	pgdg	98.8 KiB	postgresql-17-similarity_1.0-9.pgdg13+1_amd64.deb
`postgresql-17-similarity`	1.0	`d13.aarch64`	pgdg	96.0 KiB	postgresql-17-similarity_1.0-9.pgdg13+1_arm64.deb
`postgresql-17-similarity`	1.0	`u22.x86_64`	pgdg	103.7 KiB	postgresql-17-similarity_1.0-9.pgdg22.04+1_amd64.deb
`postgresql-17-similarity`	1.0	`u22.aarch64`	pgdg	101.5 KiB	postgresql-17-similarity_1.0-9.pgdg22.04+1_arm64.deb
`postgresql-17-similarity`	1.0	`u24.x86_64`	pgdg	97.6 KiB	postgresql-17-similarity_1.0-9.pgdg24.04+1_amd64.deb
`postgresql-17-similarity`	1.0	`u24.aarch64`	pgdg	95.0 KiB	postgresql-17-similarity_1.0-9.pgdg24.04+1_arm64.deb

Package	Version	OS	ORG	SIZE	File URL
`pg_similarity_16`	1.0	`el8.x86_64`	pigsty	44.8 KiB	pg_similarity_16-1.0-2PIGSTY.el8.x86_64.rpm
`pg_similarity_16`	1.0	`el8.aarch64`	pigsty	43.0 KiB	pg_similarity_16-1.0-2PIGSTY.el8.aarch64.rpm
`pg_similarity_16`	1.0	`el9.x86_64`	pigsty	41.9 KiB	pg_similarity_16-1.0-2PIGSTY.el9.x86_64.rpm
`pg_similarity_16`	1.0	`el9.aarch64`	pigsty	40.5 KiB	pg_similarity_16-1.0-2PIGSTY.el9.aarch64.rpm
`pg_similarity_16`	1.0	`el10.x86_64`	pigsty	42.3 KiB	pg_similarity_16-1.0-2PIGSTY.el10.x86_64.rpm
`pg_similarity_16`	1.0	`el10.x86_64`	pgdg	43.6 KiB	pg_similarity_16-1.0-3PGDG.rhel10.x86_64.rpm
`pg_similarity_16`	1.0	`el10.aarch64`	pigsty	41.0 KiB	pg_similarity_16-1.0-2PIGSTY.el10.aarch64.rpm
`pg_similarity_16`	1.0	`el10.aarch64`	pgdg	42.3 KiB	pg_similarity_16-1.0-3PGDG.rhel10.aarch64.rpm
`postgresql-16-similarity`	1.0	`d12.x86_64`	pgdg	98.7 KiB	postgresql-16-similarity_1.0-9.pgdg12+1_amd64.deb
`postgresql-16-similarity`	1.0	`d12.aarch64`	pgdg	96.1 KiB	postgresql-16-similarity_1.0-9.pgdg12+1_arm64.deb
`postgresql-16-similarity`	1.0	`d13.x86_64`	pgdg	98.6 KiB	postgresql-16-similarity_1.0-9.pgdg13+1_amd64.deb
`postgresql-16-similarity`	1.0	`d13.aarch64`	pgdg	96.2 KiB	postgresql-16-similarity_1.0-9.pgdg13+1_arm64.deb
`postgresql-16-similarity`	1.0	`u22.x86_64`	pgdg	103.6 KiB	postgresql-16-similarity_1.0-9.pgdg22.04+1_amd64.deb
`postgresql-16-similarity`	1.0	`u22.aarch64`	pgdg	101.5 KiB	postgresql-16-similarity_1.0-9.pgdg22.04+1_arm64.deb
`postgresql-16-similarity`	1.0	`u24.x86_64`	pgdg	97.5 KiB	postgresql-16-similarity_1.0-9.pgdg24.04+1_amd64.deb
`postgresql-16-similarity`	1.0	`u24.aarch64`	pgdg	95.1 KiB	postgresql-16-similarity_1.0-9.pgdg24.04+1_arm64.deb

Package	Version	OS	ORG	SIZE	File URL
`pg_similarity_15`	1.0	`el8.x86_64`	pigsty	45.9 KiB	pg_similarity_15-1.0-2PIGSTY.el8.x86_64.rpm
`pg_similarity_15`	1.0	`el8.aarch64`	pigsty	43.9 KiB	pg_similarity_15-1.0-2PIGSTY.el8.aarch64.rpm
`pg_similarity_15`	1.0	`el9.x86_64`	pigsty	44.1 KiB	pg_similarity_15-1.0-2PIGSTY.el9.x86_64.rpm
`pg_similarity_15`	1.0	`el9.aarch64`	pigsty	42.5 KiB	pg_similarity_15-1.0-2PIGSTY.el9.aarch64.rpm
`pg_similarity_15`	1.0	`el10.x86_64`	pigsty	44.5 KiB	pg_similarity_15-1.0-2PIGSTY.el10.x86_64.rpm
`pg_similarity_15`	1.0	`el10.x86_64`	pgdg	45.8 KiB	pg_similarity_15-1.0-3PGDG.rhel10.x86_64.rpm
`pg_similarity_15`	1.0	`el10.aarch64`	pigsty	43.0 KiB	pg_similarity_15-1.0-2PIGSTY.el10.aarch64.rpm
`pg_similarity_15`	1.0	`el10.aarch64`	pgdg	44.2 KiB	pg_similarity_15-1.0-3PGDG.rhel10.aarch64.rpm
`postgresql-15-similarity`	1.0	`d12.x86_64`	pgdg	99.5 KiB	postgresql-15-similarity_1.0-9.pgdg12+1_amd64.deb
`postgresql-15-similarity`	1.0	`d12.aarch64`	pgdg	96.9 KiB	postgresql-15-similarity_1.0-9.pgdg12+1_arm64.deb
`postgresql-15-similarity`	1.0	`d13.x86_64`	pgdg	99.7 KiB	postgresql-15-similarity_1.0-9.pgdg13+1_amd64.deb
`postgresql-15-similarity`	1.0	`d13.aarch64`	pgdg	96.9 KiB	postgresql-15-similarity_1.0-9.pgdg13+1_arm64.deb
`postgresql-15-similarity`	1.0	`u22.x86_64`	pgdg	105.4 KiB	postgresql-15-similarity_1.0-9.pgdg22.04+1_amd64.deb
`postgresql-15-similarity`	1.0	`u22.aarch64`	pgdg	103.0 KiB	postgresql-15-similarity_1.0-9.pgdg22.04+1_arm64.deb
`postgresql-15-similarity`	1.0	`u24.x86_64`	pgdg	99.3 KiB	postgresql-15-similarity_1.0-9.pgdg24.04+1_amd64.deb
`postgresql-15-similarity`	1.0	`u24.aarch64`	pgdg	96.4 KiB	postgresql-15-similarity_1.0-9.pgdg24.04+1_arm64.deb

Package	Version	OS	ORG	SIZE	File URL
`pg_similarity_14`	1.0	`el8.x86_64`	pigsty	45.9 KiB	pg_similarity_14-1.0-2PIGSTY.el8.x86_64.rpm
`pg_similarity_14`	1.0	`el8.aarch64`	pigsty	43.9 KiB	pg_similarity_14-1.0-2PIGSTY.el8.aarch64.rpm
`pg_similarity_14`	1.0	`el9.x86_64`	pigsty	44.2 KiB	pg_similarity_14-1.0-2PIGSTY.el9.x86_64.rpm
`pg_similarity_14`	1.0	`el9.aarch64`	pigsty	42.5 KiB	pg_similarity_14-1.0-2PIGSTY.el9.aarch64.rpm
`pg_similarity_14`	1.0	`el10.x86_64`	pigsty	44.5 KiB	pg_similarity_14-1.0-2PIGSTY.el10.x86_64.rpm
`pg_similarity_14`	1.0	`el10.x86_64`	pgdg	45.7 KiB	pg_similarity_14-1.0-3PGDG.rhel10.x86_64.rpm
`pg_similarity_14`	1.0	`el10.aarch64`	pigsty	43.0 KiB	pg_similarity_14-1.0-2PIGSTY.el10.aarch64.rpm
`pg_similarity_14`	1.0	`el10.aarch64`	pgdg	44.2 KiB	pg_similarity_14-1.0-3PGDG.rhel10.aarch64.rpm
`postgresql-14-similarity`	1.0	`d12.x86_64`	pgdg	99.5 KiB	postgresql-14-similarity_1.0-9.pgdg12+1_amd64.deb
`postgresql-14-similarity`	1.0	`d12.aarch64`	pgdg	96.8 KiB	postgresql-14-similarity_1.0-9.pgdg12+1_arm64.deb
`postgresql-14-similarity`	1.0	`d13.x86_64`	pgdg	99.4 KiB	postgresql-14-similarity_1.0-9.pgdg13+1_amd64.deb
`postgresql-14-similarity`	1.0	`d13.aarch64`	pgdg	96.9 KiB	postgresql-14-similarity_1.0-9.pgdg13+1_arm64.deb
`postgresql-14-similarity`	1.0	`u22.x86_64`	pgdg	105.4 KiB	postgresql-14-similarity_1.0-9.pgdg22.04+1_amd64.deb
`postgresql-14-similarity`	1.0	`u22.aarch64`	pgdg	102.8 KiB	postgresql-14-similarity_1.0-9.pgdg22.04+1_arm64.deb
`postgresql-14-similarity`	1.0	`u24.x86_64`	pgdg	99.3 KiB	postgresql-14-similarity_1.0-9.pgdg24.04+1_amd64.deb
`postgresql-14-similarity`	1.0	`u24.aarch64`	pgdg	96.4 KiB	postgresql-14-similarity_1.0-9.pgdg24.04+1_arm64.deb

Package	Version	OS	ORG	SIZE	File URL
`pg_similarity_13`	1.0	`el8.x86_64`	pigsty	45.4 KiB	pg_similarity_13-1.0-2PIGSTY.el8.x86_64.rpm
`pg_similarity_13`	1.0	`el8.aarch64`	pigsty	43.8 KiB	pg_similarity_13-1.0-2PIGSTY.el8.aarch64.rpm
`pg_similarity_13`	1.0	`el9.x86_64`	pigsty	44.1 KiB	pg_similarity_13-1.0-2PIGSTY.el9.x86_64.rpm
`pg_similarity_13`	1.0	`el9.aarch64`	pigsty	42.5 KiB	pg_similarity_13-1.0-2PIGSTY.el9.aarch64.rpm
`pg_similarity_13`	1.0	`el10.x86_64`	pigsty	44.5 KiB	pg_similarity_13-1.0-2PIGSTY.el10.x86_64.rpm
`pg_similarity_13`	1.0	`el10.x86_64`	pgdg	45.6 KiB	pg_similarity_13-1.0-3PGDG.rhel10.x86_64.rpm
`pg_similarity_13`	1.0	`el10.aarch64`	pigsty	43.0 KiB	pg_similarity_13-1.0-2PIGSTY.el10.aarch64.rpm
`pg_similarity_13`	1.0	`el10.aarch64`	pgdg	44.1 KiB	pg_similarity_13-1.0-3PGDG.rhel10.aarch64.rpm
`postgresql-13-similarity`	1.0	`d12.x86_64`	pgdg	99.0 KiB	postgresql-13-similarity_1.0-9.pgdg12+1_amd64.deb
`postgresql-13-similarity`	1.0	`d12.aarch64`	pgdg	96.3 KiB	postgresql-13-similarity_1.0-9.pgdg12+1_arm64.deb
`postgresql-13-similarity`	1.0	`d13.x86_64`	pgdg	99.2 KiB	postgresql-13-similarity_1.0-9.pgdg13+1_amd64.deb
`postgresql-13-similarity`	1.0	`d13.aarch64`	pgdg	96.5 KiB	postgresql-13-similarity_1.0-9.pgdg13+1_arm64.deb
`postgresql-13-similarity`	1.0	`u22.x86_64`	pgdg	104.9 KiB	postgresql-13-similarity_1.0-9.pgdg22.04+1_amd64.deb
`postgresql-13-similarity`	1.0	`u22.aarch64`	pgdg	102.2 KiB	postgresql-13-similarity_1.0-9.pgdg22.04+1_arm64.deb
`postgresql-13-similarity`	1.0	`u24.x86_64`	pgdg	98.6 KiB	postgresql-13-similarity_1.0-9.pgdg24.04+1_amd64.deb
`postgresql-13-similarity`	1.0	`u24.aarch64`	pgdg	96.0 KiB	postgresql-13-similarity_1.0-9.pgdg24.04+1_arm64.deb

Source

Repository

github.com/eulerto/pg_similarity

Source Tarball

pg_similarity-1.0.tar.gz

pig build get pg_similarity; # get pg_similarity source code
pig build dep pg_similarity; # install build dependencies
pig build pkg pg_similarity; # build extension rpm or deb
pig build ext pg_similarity; # build extension rpms

Install

To add the required PGDG / PIGSTY upstream repository, use:

pig repo add pgsql -u   # add PGDG + Pigsty repo and update cache (leave existing repos)

Install this extension with:

pig ext install pg_similarity; # install by extension name, for the current active PG version
pig ext install pg_similarity; # install via package alias, for the active PG version
pig ext install pg_similarity -v 18;   # install for PG 18
pig ext install pg_similarity -v 17;   # install for PG 17
pig ext install pg_similarity -v 16;   # install for PG 16
pig ext install pg_similarity -v 15;   # install for PG 15
pig ext install pg_similarity -v 14;   # install for PG 14
pig ext install pg_similarity -v 13;   # install for PG 13

Create this extension with:

CREATE EXTENSION pg_similarity;

Last updated on 2025-11-02

vectorize smlar