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pg_hashids

Short unique id generator for PostgreSQL, using hashids

pg_hashids : Short unique id generator for PostgreSQL, using hashids

Overview

ID Extension Package Version Category License Language
4550 pg_hashids pg_hashids 1.3 FUNC MIT C
Attribute Has Binary Has Library Need Load Has DDL Relocatable Trusted
--s-d-r No Yes No Yes yes no
Relationships
See Also base36 base62 pg_base58 url_encode pg_slug_gen typeid pgqr

Packages

Type Repo Version PG Major Compatibility Package Pattern Dependencies
EXT PIGSTY 1.3 18 17 16 15 14 pg_hashids -
RPM PIGSTY 1.3 18 17 16 15 14 pg_hashids_$v -
DEB PIGSTY 1.3 18 17 16 15 14 postgresql-$v-pg-hashids -
Linux / PG PG18 PG17 PG16 PG15 PG14
el8.x86_64 PIGSTY 1.3 PIGSTY 1.3 PIGSTY 1.3 PIGSTY 1.3 PIGSTY 1.3
el8.aarch64 PIGSTY 1.3 PIGSTY 1.3 PIGSTY 1.3 PIGSTY 1.3 PIGSTY 1.3
el9.x86_64 PIGSTY 1.3 PIGSTY 1.3 PIGSTY 1.3 PIGSTY 1.3 PIGSTY 1.3
el9.aarch64 PIGSTY 1.3 PIGSTY 1.3 PIGSTY 1.3 PIGSTY 1.3 PIGSTY 1.3
el10.x86_64 PIGSTY 1.3 PIGSTY 1.3 PIGSTY 1.3 PIGSTY 1.3 PIGSTY 1.3
el10.aarch64 PIGSTY 1.3 PIGSTY 1.3 PIGSTY 1.3 PIGSTY 1.3 PIGSTY 1.3
d12.x86_64 PIGSTY 1.3 PIGSTY 1.3 PIGSTY 1.3 PIGSTY 1.3 PIGSTY 1.3
d12.aarch64 PIGSTY 1.3 PIGSTY 1.3 PIGSTY 1.3 PIGSTY 1.3 PIGSTY 1.3
d13.x86_64 PIGSTY 1.3 PIGSTY 1.3 PIGSTY 1.3 PIGSTY 1.3 PIGSTY 1.3
d13.aarch64 PIGSTY 1.3 PIGSTY 1.3 PIGSTY 1.3 PIGSTY 1.3 PIGSTY 1.3
u22.x86_64 PIGSTY 1.3 PIGSTY 1.3 PIGSTY 1.3 PIGSTY 1.3 PIGSTY 1.3
u22.aarch64 PIGSTY 1.3 PIGSTY 1.3 PIGSTY 1.3 PIGSTY 1.3 PIGSTY 1.3
u24.x86_64 PIGSTY 1.3 PIGSTY 1.3 PIGSTY 1.3 PIGSTY 1.3 PIGSTY 1.3
u24.aarch64 PIGSTY 1.3 PIGSTY 1.3 PIGSTY 1.3 PIGSTY 1.3 PIGSTY 1.3
u26.x86_64 PIGSTY 1.3 PIGSTY 1.3 PIGSTY 1.3 PIGSTY 1.3 PIGSTY 1.3
u26.aarch64 PIGSTY 1.3 PIGSTY 1.3 PIGSTY 1.3 PIGSTY 1.3 PIGSTY 1.3
Package Version OS ORG SIZE File URL
pg_hashids_18 1.3 el8.x86_64 pigsty 18.6 KiB pg_hashids_18-1.3-1PIGSTY.el8.x86_64.rpm
pg_hashids_18 1.3 el8.aarch64 pigsty 17.9 KiB pg_hashids_18-1.3-1PIGSTY.el8.aarch64.rpm
pg_hashids_18 1.3 el9.x86_64 pigsty 17.2 KiB pg_hashids_18-1.3-1PIGSTY.el9.x86_64.rpm
pg_hashids_18 1.3 el9.aarch64 pigsty 16.6 KiB pg_hashids_18-1.3-1PIGSTY.el9.aarch64.rpm
pg_hashids_18 1.3 el10.x86_64 pigsty 17.2 KiB pg_hashids_18-1.3-1PIGSTY.el10.x86_64.rpm
pg_hashids_18 1.3 el10.aarch64 pigsty 16.7 KiB pg_hashids_18-1.3-1PIGSTY.el10.aarch64.rpm
postgresql-18-pg-hashids 1.3 d12.x86_64 pigsty 27.2 KiB postgresql-18-pg-hashids_1.3-1PIGSTY~bookworm_amd64.deb
postgresql-18-pg-hashids 1.3 d12.aarch64 pigsty 26.4 KiB postgresql-18-pg-hashids_1.3-1PIGSTY~bookworm_arm64.deb
postgresql-18-pg-hashids 1.3 d13.x86_64 pigsty 27.3 KiB postgresql-18-pg-hashids_1.3-1PIGSTY~trixie_amd64.deb
postgresql-18-pg-hashids 1.3 d13.aarch64 pigsty 26.5 KiB postgresql-18-pg-hashids_1.3-1PIGSTY~trixie_arm64.deb
postgresql-18-pg-hashids 1.3 u22.x86_64 pigsty 27.5 KiB postgresql-18-pg-hashids_1.3-1PIGSTY~jammy_amd64.deb
postgresql-18-pg-hashids 1.3 u22.aarch64 pigsty 26.6 KiB postgresql-18-pg-hashids_1.3-1PIGSTY~jammy_arm64.deb
postgresql-18-pg-hashids 1.3 u24.x86_64 pigsty 27.6 KiB postgresql-18-pg-hashids_1.3-1PIGSTY~noble_amd64.deb
postgresql-18-pg-hashids 1.3 u24.aarch64 pigsty 26.7 KiB postgresql-18-pg-hashids_1.3-1PIGSTY~noble_arm64.deb
postgresql-18-pg-hashids 1.3 u26.x86_64 pigsty 27.1 KiB postgresql-18-pg-hashids_1.3-1PIGSTY~resolute_amd64.deb
postgresql-18-pg-hashids 1.3 u26.aarch64 pigsty 26.7 KiB postgresql-18-pg-hashids_1.3-1PIGSTY~resolute_arm64.deb
Package Version OS ORG SIZE File URL
pg_hashids_17 1.3 el8.x86_64 pigsty 18.6 KiB pg_hashids_17-1.3-1PIGSTY.el8.x86_64.rpm
pg_hashids_17 1.3 el8.aarch64 pigsty 17.9 KiB pg_hashids_17-1.3-1PIGSTY.el8.aarch64.rpm
pg_hashids_17 1.3 el9.x86_64 pigsty 17.2 KiB pg_hashids_17-1.3-1PIGSTY.el9.x86_64.rpm
pg_hashids_17 1.3 el9.aarch64 pigsty 16.6 KiB pg_hashids_17-1.3-1PIGSTY.el9.aarch64.rpm
pg_hashids_17 1.3 el10.x86_64 pigsty 17.2 KiB pg_hashids_17-1.3-1PIGSTY.el10.x86_64.rpm
pg_hashids_17 1.3 el10.aarch64 pigsty 16.7 KiB pg_hashids_17-1.3-1PIGSTY.el10.aarch64.rpm
postgresql-17-pg-hashids 1.3 d12.x86_64 pigsty 27.2 KiB postgresql-17-pg-hashids_1.3-1PIGSTY~bookworm_amd64.deb
postgresql-17-pg-hashids 1.3 d12.aarch64 pigsty 26.5 KiB postgresql-17-pg-hashids_1.3-1PIGSTY~bookworm_arm64.deb
postgresql-17-pg-hashids 1.3 d13.x86_64 pigsty 27.2 KiB postgresql-17-pg-hashids_1.3-1PIGSTY~trixie_amd64.deb
postgresql-17-pg-hashids 1.3 d13.aarch64 pigsty 26.5 KiB postgresql-17-pg-hashids_1.3-1PIGSTY~trixie_arm64.deb
postgresql-17-pg-hashids 1.3 u22.x86_64 pigsty 28.4 KiB postgresql-17-pg-hashids_1.3-1PIGSTY~jammy_amd64.deb
postgresql-17-pg-hashids 1.3 u22.aarch64 pigsty 27.6 KiB postgresql-17-pg-hashids_1.3-1PIGSTY~jammy_arm64.deb
postgresql-17-pg-hashids 1.3 u24.x86_64 pigsty 27.6 KiB postgresql-17-pg-hashids_1.3-1PIGSTY~noble_amd64.deb
postgresql-17-pg-hashids 1.3 u24.aarch64 pigsty 26.7 KiB postgresql-17-pg-hashids_1.3-1PIGSTY~noble_arm64.deb
postgresql-17-pg-hashids 1.3 u26.x86_64 pigsty 27.0 KiB postgresql-17-pg-hashids_1.3-1PIGSTY~resolute_amd64.deb
postgresql-17-pg-hashids 1.3 u26.aarch64 pigsty 26.7 KiB postgresql-17-pg-hashids_1.3-1PIGSTY~resolute_arm64.deb
Package Version OS ORG SIZE File URL
pg_hashids_16 1.3 el8.x86_64 pigsty 18.6 KiB pg_hashids_16-1.3-1PIGSTY.el8.x86_64.rpm
pg_hashids_16 1.3 el8.aarch64 pigsty 17.9 KiB pg_hashids_16-1.3-1PIGSTY.el8.aarch64.rpm
pg_hashids_16 1.3 el9.x86_64 pigsty 17.2 KiB pg_hashids_16-1.3-1PIGSTY.el9.x86_64.rpm
pg_hashids_16 1.3 el9.aarch64 pigsty 16.6 KiB pg_hashids_16-1.3-1PIGSTY.el9.aarch64.rpm
pg_hashids_16 1.3 el10.x86_64 pigsty 17.2 KiB pg_hashids_16-1.3-1PIGSTY.el10.x86_64.rpm
pg_hashids_16 1.3 el10.aarch64 pigsty 16.7 KiB pg_hashids_16-1.3-1PIGSTY.el10.aarch64.rpm
postgresql-16-pg-hashids 1.3 d12.x86_64 pigsty 27.2 KiB postgresql-16-pg-hashids_1.3-1PIGSTY~bookworm_amd64.deb
postgresql-16-pg-hashids 1.3 d12.aarch64 pigsty 26.4 KiB postgresql-16-pg-hashids_1.3-1PIGSTY~bookworm_arm64.deb
postgresql-16-pg-hashids 1.3 d13.x86_64 pigsty 27.3 KiB postgresql-16-pg-hashids_1.3-1PIGSTY~trixie_amd64.deb
postgresql-16-pg-hashids 1.3 d13.aarch64 pigsty 26.5 KiB postgresql-16-pg-hashids_1.3-1PIGSTY~trixie_arm64.deb
postgresql-16-pg-hashids 1.3 u22.x86_64 pigsty 28.4 KiB postgresql-16-pg-hashids_1.3-1PIGSTY~jammy_amd64.deb
postgresql-16-pg-hashids 1.3 u22.aarch64 pigsty 27.6 KiB postgresql-16-pg-hashids_1.3-1PIGSTY~jammy_arm64.deb
postgresql-16-pg-hashids 1.3 u24.x86_64 pigsty 27.6 KiB postgresql-16-pg-hashids_1.3-1PIGSTY~noble_amd64.deb
postgresql-16-pg-hashids 1.3 u24.aarch64 pigsty 26.7 KiB postgresql-16-pg-hashids_1.3-1PIGSTY~noble_arm64.deb
postgresql-16-pg-hashids 1.3 u26.x86_64 pigsty 27.0 KiB postgresql-16-pg-hashids_1.3-1PIGSTY~resolute_amd64.deb
postgresql-16-pg-hashids 1.3 u26.aarch64 pigsty 26.7 KiB postgresql-16-pg-hashids_1.3-1PIGSTY~resolute_arm64.deb
Package Version OS ORG SIZE File URL
pg_hashids_15 1.3 el8.x86_64 pigsty 18.9 KiB pg_hashids_15-1.3-1PIGSTY.el8.x86_64.rpm
pg_hashids_15 1.3 el8.aarch64 pigsty 18.2 KiB pg_hashids_15-1.3-1PIGSTY.el8.aarch64.rpm
pg_hashids_15 1.3 el9.x86_64 pigsty 18.6 KiB pg_hashids_15-1.3-1PIGSTY.el9.x86_64.rpm
pg_hashids_15 1.3 el9.aarch64 pigsty 18.1 KiB pg_hashids_15-1.3-1PIGSTY.el9.aarch64.rpm
pg_hashids_15 1.3 el10.x86_64 pigsty 18.7 KiB pg_hashids_15-1.3-1PIGSTY.el10.x86_64.rpm
pg_hashids_15 1.3 el10.aarch64 pigsty 18.4 KiB pg_hashids_15-1.3-1PIGSTY.el10.aarch64.rpm
postgresql-15-pg-hashids 1.3 d12.x86_64 pigsty 27.5 KiB postgresql-15-pg-hashids_1.3-1PIGSTY~bookworm_amd64.deb
postgresql-15-pg-hashids 1.3 d12.aarch64 pigsty 26.7 KiB postgresql-15-pg-hashids_1.3-1PIGSTY~bookworm_arm64.deb
postgresql-15-pg-hashids 1.3 d13.x86_64 pigsty 27.6 KiB postgresql-15-pg-hashids_1.3-1PIGSTY~trixie_amd64.deb
postgresql-15-pg-hashids 1.3 d13.aarch64 pigsty 26.8 KiB postgresql-15-pg-hashids_1.3-1PIGSTY~trixie_arm64.deb
postgresql-15-pg-hashids 1.3 u22.x86_64 pigsty 29.7 KiB postgresql-15-pg-hashids_1.3-1PIGSTY~jammy_amd64.deb
postgresql-15-pg-hashids 1.3 u22.aarch64 pigsty 28.9 KiB postgresql-15-pg-hashids_1.3-1PIGSTY~jammy_arm64.deb
postgresql-15-pg-hashids 1.3 u24.x86_64 pigsty 28.8 KiB postgresql-15-pg-hashids_1.3-1PIGSTY~noble_amd64.deb
postgresql-15-pg-hashids 1.3 u24.aarch64 pigsty 28.0 KiB postgresql-15-pg-hashids_1.3-1PIGSTY~noble_arm64.deb
postgresql-15-pg-hashids 1.3 u26.x86_64 pigsty 28.5 KiB postgresql-15-pg-hashids_1.3-1PIGSTY~resolute_amd64.deb
postgresql-15-pg-hashids 1.3 u26.aarch64 pigsty 28.1 KiB postgresql-15-pg-hashids_1.3-1PIGSTY~resolute_arm64.deb
Package Version OS ORG SIZE File URL
pg_hashids_14 1.3 el8.x86_64 pigsty 18.9 KiB pg_hashids_14-1.3-1PIGSTY.el8.x86_64.rpm
pg_hashids_14 1.3 el8.aarch64 pigsty 18.2 KiB pg_hashids_14-1.3-1PIGSTY.el8.aarch64.rpm
pg_hashids_14 1.3 el9.x86_64 pigsty 18.6 KiB pg_hashids_14-1.3-1PIGSTY.el9.x86_64.rpm
pg_hashids_14 1.3 el9.aarch64 pigsty 18.0 KiB pg_hashids_14-1.3-1PIGSTY.el9.aarch64.rpm
pg_hashids_14 1.3 el10.x86_64 pigsty 18.7 KiB pg_hashids_14-1.3-1PIGSTY.el10.x86_64.rpm
pg_hashids_14 1.3 el10.aarch64 pigsty 18.5 KiB pg_hashids_14-1.3-1PIGSTY.el10.aarch64.rpm
postgresql-14-pg-hashids 1.3 d12.x86_64 pigsty 27.4 KiB postgresql-14-pg-hashids_1.3-1PIGSTY~bookworm_amd64.deb
postgresql-14-pg-hashids 1.3 d12.aarch64 pigsty 26.7 KiB postgresql-14-pg-hashids_1.3-1PIGSTY~bookworm_arm64.deb
postgresql-14-pg-hashids 1.3 d13.x86_64 pigsty 27.5 KiB postgresql-14-pg-hashids_1.3-1PIGSTY~trixie_amd64.deb
postgresql-14-pg-hashids 1.3 d13.aarch64 pigsty 26.8 KiB postgresql-14-pg-hashids_1.3-1PIGSTY~trixie_arm64.deb
postgresql-14-pg-hashids 1.3 u22.x86_64 pigsty 29.6 KiB postgresql-14-pg-hashids_1.3-1PIGSTY~jammy_amd64.deb
postgresql-14-pg-hashids 1.3 u22.aarch64 pigsty 28.9 KiB postgresql-14-pg-hashids_1.3-1PIGSTY~jammy_arm64.deb
postgresql-14-pg-hashids 1.3 u24.x86_64 pigsty 28.8 KiB postgresql-14-pg-hashids_1.3-1PIGSTY~noble_amd64.deb
postgresql-14-pg-hashids 1.3 u24.aarch64 pigsty 28.0 KiB postgresql-14-pg-hashids_1.3-1PIGSTY~noble_arm64.deb
postgresql-14-pg-hashids 1.3 u26.x86_64 pigsty 28.4 KiB postgresql-14-pg-hashids_1.3-1PIGSTY~resolute_amd64.deb
postgresql-14-pg-hashids 1.3 u26.aarch64 pigsty 28.0 KiB postgresql-14-pg-hashids_1.3-1PIGSTY~resolute_arm64.deb

Source 

pig build pkg pg_hashids;		# build rpm/deb

Install

Make sure PGDG and PIGSTY repo available:

pig repo add pgsql -u   # add both repo and update cache

Install this extension with pig:

pig install pg_hashids;		# install via package name, for the active PG version

pig install pg_hashids -v 18;   # install for PG 18
pig install pg_hashids -v 17;   # install for PG 17
pig install pg_hashids -v 16;   # install for PG 16
pig install pg_hashids -v 15;   # install for PG 15
pig install pg_hashids -v 14;   # install for PG 14

Create this extension with:

CREATE EXTENSION pg_hashids;

Usage

pg_hashids: generate short unique ids from integers

Converts numbers like 347 into strings like “yr8”. Useful for obfuscating database primary keys.

CREATE EXTENSION pg_hashids;

Functions

Function Description
id_encode(number [, salt [, min_length [, alphabet]]]) Encode an integer to a hashid string
id_decode(hash, salt, min_length [, alphabet]) Decode a hashid string back to integer array
id_decode_once(hash [, salt [, min_length [, alphabet]]]) Decode a hashid string back to a single integer

Examples 

-- Basic encoding
SELECT id_encode(1001);                                    -- 'jNl'
SELECT id_encode(1234567, 'This is my salt');              -- 'Pdzxp'
SELECT id_encode(1234567, 'This is my salt', 10);          -- 'PlRPdzxpR7'

-- Custom alphabet
SELECT id_encode(1234567, 'This is my salt', 10, 'abcdefghijABCDxFGHIJ1234567890');
-- '3GJ956J9B9'

-- Decoding (use the same salt!)
SELECT id_decode('PlRPdzxpR7', 'This is my salt', 10);     -- 1234567
SELECT id_decode_once('jNl');                               -- 1001
SELECT id_decode_once('Pdzxp', 'This is my salt');          -- 1234567