xxhash

xxhash哈希函数包

概览

扩展包名版本分类许可证语言
pg_xxhash0.0.1UTILBSD 2-ClauseC
ID扩展名BinLibLoadCreateTrustReloc模式
4430xxhash-
相关扩展hashlib shacrypt pgcrypto gzip bzip zstd http pg_net

版本

类型仓库版本PG 大版本包名依赖
EXTPIGSTY0.0.11817161514pg_xxhash-
RPMPIGSTY0.0.11817161514pg_xxhash_$v-
DEBPIGSTY0.0.11817161514postgresql-$v-pg-xxhash-
OS / PGPG18PG17PG16PG15PG14
el8.x86_64
el8.aarch64
el9.x86_64
el9.aarch64
el10.x86_64
el10.aarch64
d12.x86_64
d12.aarch64
d13.x86_64
PIGSTY 0.0.1
PIGSTY 0.0.1
PIGSTY 0.0.1
PIGSTY 0.0.1
PIGSTY 0.0.1
d13.aarch64
PIGSTY 0.0.1
PIGSTY 0.0.1
PIGSTY 0.0.1
PIGSTY 0.0.1
PIGSTY 0.0.1
u22.x86_64
PIGSTY 0.0.1
PIGSTY 0.0.1
PIGSTY 0.0.1
PIGSTY 0.0.1
PIGSTY 0.0.1
u22.aarch64
PIGSTY 0.0.1
PIGSTY 0.0.1
PIGSTY 0.0.1
PIGSTY 0.0.1
PIGSTY 0.0.1
u24.x86_64
PIGSTY 0.0.1
PIGSTY 0.0.1
PIGSTY 0.0.1
PIGSTY 0.0.1
PIGSTY 0.0.1
u24.aarch64
PIGSTY 0.0.1
PIGSTY 0.0.1
PIGSTY 0.0.1
PIGSTY 0.0.1
PIGSTY 0.0.1

构建

您可以使用 pig build 命令构建 pg_xxhash 扩展的 RPM / DEB 包:

pig build pkg pg_xxhash         # 构建 RPM / DEB 包

安装

您可以直接安装 pg_xxhash 扩展包的预置二进制包,首先确保 PGDGPIGSTY 仓库已经添加并启用:

pig repo add pgsql -u          # 添加仓库并更新缓存

使用 pig 或者是 apt/yum/dnf 安装扩展:

pig install pg_xxhash;          # 当前活跃 PG 版本安装
pig ext install -y pg_xxhash -v 18  # PG 18
pig ext install -y pg_xxhash -v 17  # PG 17
pig ext install -y pg_xxhash -v 16  # PG 16
pig ext install -y pg_xxhash -v 15  # PG 15
pig ext install -y pg_xxhash -v 14  # PG 14
dnf install -y pg_xxhash_18       # PG 18
dnf install -y pg_xxhash_17       # PG 17
dnf install -y pg_xxhash_16       # PG 16
dnf install -y pg_xxhash_15       # PG 15
dnf install -y pg_xxhash_14       # PG 14
apt install -y postgresql-18-pg-xxhash   # PG 18
apt install -y postgresql-17-pg-xxhash   # PG 17
apt install -y postgresql-16-pg-xxhash   # PG 16
apt install -y postgresql-15-pg-xxhash   # PG 15
apt install -y postgresql-14-pg-xxhash   # PG 14

创建扩展

CREATE EXTENSION xxhash;

用法

xxhash: PostgreSQL 的 xxHash 哈希函数

提供 xxHash 非加密哈希函数,返回十六进制字符串或 bytea。

文本输出函数

SELECT xxh32('https://example.com');     -- 'ba15a4a8'
SELECT xxh64('https://example.com');     -- 'b131752760b48654'
SELECT xxh3_64('https://example.com');   -- '9398cc7c078760e6'
SELECT xxh128('https://example.com');    -- '4879d6aa9d88e9c7a169c008892d4829'

二进制输出函数

SELECT xxh32b('https://example.com');    -- \xba15a4a8
SELECT xxh64b('https://example.com');    -- \xb131752760b48654
SELECT xxh3_64b('https://example.com');  -- \x9398cc7c078760e6
SELECT xxh128b('https://example.com');   -- \x4879d6aa9d88e9c7a169c008892d4829

可用函数

函数位数输出
xxh32(text)32十六进制文本
xxh64(text)64十六进制文本
xxh3_64(text)64十六进制文本
xxh128(text)128十六进制文本
xxh32b(text)32bytea
xxh64b(text)64bytea
xxh3_64b(text)64bytea
xxh128b(text)128bytea

最后修改 2026-03-14: update extension metadata (953cbd0)