pgcozy

根据先前的pg_buffercache快照预热内存缓冲区

概览

扩展包名	版本	分类	许可证	语言
`pgcozy`	`1.0`	ADMIN	PostgreSQL	SQL

ID	扩展名	Bin	Lib	Load	Create	Trust	Reloc	模式
5190	`pgcozy`	否	否	否	是	否	否	-

相关扩展	`pg_buffercache` `pg_prewarm` `pg_buffercache` `pgfincore` `pg_prewarm` `pg_cooldown`

版本

类型	仓库	版本	PG 大版本	包名	依赖
EXT	PIGSTY	`1.0`	1817161514	`pgcozy`	`pg_buffercache`, `pg_prewarm`
RPM	PIGSTY	`1.0`	1817161514	`pgcozy_$v`	-
DEB	PIGSTY	`1.0`	1817161514	`postgresql-$v-pgcozy`	-

OS / PG	PG18	PG17	PG16	PG15	PG14
el8.x86_64	PIGSTY 1.0 el8.x86_64.pg18 : pgcozy_18 pgcozy_18-1.0-1PIGSTY.el8.x86_64.rpm PIGSTY · 1.0 · 10.7KiB	PIGSTY 1.0 el8.x86_64.pg17 : pgcozy_17 pgcozy_17-1.0-1PIGSTY.el8.x86_64.rpm PIGSTY · 1.0 · 10.7KiB	PIGSTY 1.0 el8.x86_64.pg16 : pgcozy_16 pgcozy_16-1.0-1PIGSTY.el8.x86_64.rpm PIGSTY · 1.0 · 10.7KiB	PIGSTY 1.0 el8.x86_64.pg15 : pgcozy_15 pgcozy_15-1.0-1PIGSTY.el8.x86_64.rpm PIGSTY · 1.0 · 10.7KiB	PIGSTY 1.0 el8.x86_64.pg14 : pgcozy_14 pgcozy_14-1.0-1PIGSTY.el8.x86_64.rpm PIGSTY · 1.0 · 10.7KiB
el8.aarch64	PIGSTY 1.0 el8.aarch64.pg18 : pgcozy_18 pgcozy_18-1.0-1PIGSTY.el8.aarch64.rpm PIGSTY · 1.0 · 10.7KiB	PIGSTY 1.0 el8.aarch64.pg17 : pgcozy_17 pgcozy_17-1.0-1PIGSTY.el8.aarch64.rpm PIGSTY · 1.0 · 10.7KiB	PIGSTY 1.0 el8.aarch64.pg16 : pgcozy_16 pgcozy_16-1.0-1PIGSTY.el8.aarch64.rpm PIGSTY · 1.0 · 10.7KiB	PIGSTY 1.0 el8.aarch64.pg15 : pgcozy_15 pgcozy_15-1.0-1PIGSTY.el8.aarch64.rpm PIGSTY · 1.0 · 10.7KiB	PIGSTY 1.0 el8.aarch64.pg14 : pgcozy_14 pgcozy_14-1.0-1PIGSTY.el8.aarch64.rpm PIGSTY · 1.0 · 10.7KiB
el9.x86_64	PIGSTY 1.0 el9.x86_64.pg18 : pgcozy_18 pgcozy_18-1.0-1PIGSTY.el9.x86_64.rpm PIGSTY · 1.0 · 10.7KiB	PIGSTY 1.0 el9.x86_64.pg17 : pgcozy_17 pgcozy_17-1.0-1PIGSTY.el9.x86_64.rpm PIGSTY · 1.0 · 10.7KiB	PIGSTY 1.0 el9.x86_64.pg16 : pgcozy_16 pgcozy_16-1.0-1PIGSTY.el9.x86_64.rpm PIGSTY · 1.0 · 10.7KiB	PIGSTY 1.0 el9.x86_64.pg15 : pgcozy_15 pgcozy_15-1.0-1PIGSTY.el9.x86_64.rpm PIGSTY · 1.0 · 10.7KiB	PIGSTY 1.0 el9.x86_64.pg14 : pgcozy_14 pgcozy_14-1.0-1PIGSTY.el9.x86_64.rpm PIGSTY · 1.0 · 10.7KiB
el9.aarch64	PIGSTY 1.0 el9.aarch64.pg18 : pgcozy_18 pgcozy_18-1.0-1PIGSTY.el9.aarch64.rpm PIGSTY · 1.0 · 10.7KiB	PIGSTY 1.0 el9.aarch64.pg17 : pgcozy_17 pgcozy_17-1.0-1PIGSTY.el9.aarch64.rpm PIGSTY · 1.0 · 10.7KiB	PIGSTY 1.0 el9.aarch64.pg16 : pgcozy_16 pgcozy_16-1.0-1PIGSTY.el9.aarch64.rpm PIGSTY · 1.0 · 10.7KiB	PIGSTY 1.0 el9.aarch64.pg15 : pgcozy_15 pgcozy_15-1.0-1PIGSTY.el9.aarch64.rpm PIGSTY · 1.0 · 10.7KiB	PIGSTY 1.0 el9.aarch64.pg14 : pgcozy_14 pgcozy_14-1.0-1PIGSTY.el9.aarch64.rpm PIGSTY · 1.0 · 10.7KiB
el10.x86_64	PIGSTY 1.0 el10.x86_64.pg18 : pgcozy_18 pgcozy_18-1.0-1PIGSTY.el10.x86_64.rpm PIGSTY · 1.0 · 10.8KiB	PIGSTY 1.0 el10.x86_64.pg17 : pgcozy_17 pgcozy_17-1.0-1PIGSTY.el10.x86_64.rpm PIGSTY · 1.0 · 10.8KiB	PIGSTY 1.0 el10.x86_64.pg16 : pgcozy_16 pgcozy_16-1.0-1PIGSTY.el10.x86_64.rpm PIGSTY · 1.0 · 10.8KiB	PIGSTY 1.0 el10.x86_64.pg15 : pgcozy_15 pgcozy_15-1.0-1PIGSTY.el10.x86_64.rpm PIGSTY · 1.0 · 10.8KiB	PIGSTY 1.0 el10.x86_64.pg14 : pgcozy_14 pgcozy_14-1.0-1PIGSTY.el10.x86_64.rpm PIGSTY · 1.0 · 10.8KiB
el10.aarch64	PIGSTY 1.0 el10.aarch64.pg18 : pgcozy_18 pgcozy_18-1.0-1PIGSTY.el10.aarch64.rpm PIGSTY · 1.0 · 10.8KiB	PIGSTY 1.0 el10.aarch64.pg17 : pgcozy_17 pgcozy_17-1.0-1PIGSTY.el10.aarch64.rpm PIGSTY · 1.0 · 10.8KiB	PIGSTY 1.0 el10.aarch64.pg16 : pgcozy_16 pgcozy_16-1.0-1PIGSTY.el10.aarch64.rpm PIGSTY · 1.0 · 10.8KiB	PIGSTY 1.0 el10.aarch64.pg15 : pgcozy_15 pgcozy_15-1.0-1PIGSTY.el10.aarch64.rpm PIGSTY · 1.0 · 10.8KiB	PIGSTY 1.0 el10.aarch64.pg14 : pgcozy_14 pgcozy_14-1.0-1PIGSTY.el10.aarch64.rpm PIGSTY · 1.0 · 10.8KiB
d12.x86_64	PIGSTY 1.0 d12.x86_64.pg18 : postgresql-18-pgcozy postgresql-18-pgcozy_1.0-1PIGSTY~bookworm_amd64.deb PIGSTY · 1.0 · 8.2KiB	PIGSTY 1.0 d12.x86_64.pg17 : postgresql-17-pgcozy postgresql-17-pgcozy_1.0-1PIGSTY~bookworm_amd64.deb PIGSTY · 1.0 · 8.2KiB	PIGSTY 1.0 d12.x86_64.pg16 : postgresql-16-pgcozy postgresql-16-pgcozy_1.0-1PIGSTY~bookworm_amd64.deb PIGSTY · 1.0 · 8.2KiB	PIGSTY 1.0 d12.x86_64.pg15 : postgresql-15-pgcozy postgresql-15-pgcozy_1.0-1PIGSTY~bookworm_amd64.deb PIGSTY · 1.0 · 8.2KiB	PIGSTY 1.0 d12.x86_64.pg14 : postgresql-14-pgcozy postgresql-14-pgcozy_1.0-1PIGSTY~bookworm_amd64.deb PIGSTY · 1.0 · 8.2KiB
d12.aarch64	PIGSTY 1.0 d12.aarch64.pg18 : postgresql-18-pgcozy postgresql-18-pgcozy_1.0-1PIGSTY~bookworm_arm64.deb PIGSTY · 1.0 · 8.2KiB	PIGSTY 1.0 d12.aarch64.pg17 : postgresql-17-pgcozy postgresql-17-pgcozy_1.0-1PIGSTY~bookworm_arm64.deb PIGSTY · 1.0 · 8.2KiB	PIGSTY 1.0 d12.aarch64.pg16 : postgresql-16-pgcozy postgresql-16-pgcozy_1.0-1PIGSTY~bookworm_arm64.deb PIGSTY · 1.0 · 8.2KiB	PIGSTY 1.0 d12.aarch64.pg15 : postgresql-15-pgcozy postgresql-15-pgcozy_1.0-1PIGSTY~bookworm_arm64.deb PIGSTY · 1.0 · 8.2KiB	PIGSTY 1.0 d12.aarch64.pg14 : postgresql-14-pgcozy postgresql-14-pgcozy_1.0-1PIGSTY~bookworm_arm64.deb PIGSTY · 1.0 · 8.2KiB
d13.x86_64	PIGSTY 1.0 d13.x86_64.pg18 : postgresql-18-pgcozy postgresql-18-pgcozy_1.0-1PIGSTY~trixie_amd64.deb PIGSTY · 1.0 · 8.2KiB	PIGSTY 1.0 d13.x86_64.pg17 : postgresql-17-pgcozy postgresql-17-pgcozy_1.0-1PIGSTY~trixie_amd64.deb PIGSTY · 1.0 · 8.2KiB	PIGSTY 1.0 d13.x86_64.pg16 : postgresql-16-pgcozy postgresql-16-pgcozy_1.0-1PIGSTY~trixie_amd64.deb PIGSTY · 1.0 · 8.2KiB	PIGSTY 1.0 d13.x86_64.pg15 : postgresql-15-pgcozy postgresql-15-pgcozy_1.0-1PIGSTY~trixie_amd64.deb PIGSTY · 1.0 · 8.2KiB	PIGSTY 1.0 d13.x86_64.pg14 : postgresql-14-pgcozy postgresql-14-pgcozy_1.0-1PIGSTY~trixie_amd64.deb PIGSTY · 1.0 · 8.2KiB
d13.aarch64	PIGSTY 1.0 d13.aarch64.pg18 : postgresql-18-pgcozy postgresql-18-pgcozy_1.0-1PIGSTY~trixie_arm64.deb PIGSTY · 1.0 · 8.2KiB	PIGSTY 1.0 d13.aarch64.pg17 : postgresql-17-pgcozy postgresql-17-pgcozy_1.0-1PIGSTY~trixie_arm64.deb PIGSTY · 1.0 · 8.2KiB	PIGSTY 1.0 d13.aarch64.pg16 : postgresql-16-pgcozy postgresql-16-pgcozy_1.0-1PIGSTY~trixie_arm64.deb PIGSTY · 1.0 · 8.2KiB	PIGSTY 1.0 d13.aarch64.pg15 : postgresql-15-pgcozy postgresql-15-pgcozy_1.0-1PIGSTY~trixie_arm64.deb PIGSTY · 1.0 · 8.2KiB	PIGSTY 1.0 d13.aarch64.pg14 : postgresql-14-pgcozy postgresql-14-pgcozy_1.0-1PIGSTY~trixie_arm64.deb PIGSTY · 1.0 · 8.2KiB
u22.x86_64	PIGSTY 1.0 u22.x86_64.pg18 : postgresql-18-pgcozy postgresql-18-pgcozy_1.0-1PIGSTY~jammy_amd64.deb PIGSTY · 1.0 · 8.2KiB	PIGSTY 1.0 u22.x86_64.pg17 : postgresql-17-pgcozy postgresql-17-pgcozy_1.0-1PIGSTY~jammy_amd64.deb PIGSTY · 1.0 · 8.2KiB	PIGSTY 1.0 u22.x86_64.pg16 : postgresql-16-pgcozy postgresql-16-pgcozy_1.0-1PIGSTY~jammy_amd64.deb PIGSTY · 1.0 · 8.2KiB	PIGSTY 1.0 u22.x86_64.pg15 : postgresql-15-pgcozy postgresql-15-pgcozy_1.0-1PIGSTY~jammy_amd64.deb PIGSTY · 1.0 · 8.2KiB	PIGSTY 1.0 u22.x86_64.pg14 : postgresql-14-pgcozy postgresql-14-pgcozy_1.0-1PIGSTY~jammy_amd64.deb PIGSTY · 1.0 · 8.2KiB
u22.aarch64	PIGSTY 1.0 u22.aarch64.pg18 : postgresql-18-pgcozy postgresql-18-pgcozy_1.0-1PIGSTY~jammy_arm64.deb PIGSTY · 1.0 · 8.2KiB	PIGSTY 1.0 u22.aarch64.pg17 : postgresql-17-pgcozy postgresql-17-pgcozy_1.0-1PIGSTY~jammy_arm64.deb PIGSTY · 1.0 · 8.2KiB	PIGSTY 1.0 u22.aarch64.pg16 : postgresql-16-pgcozy postgresql-16-pgcozy_1.0-1PIGSTY~jammy_arm64.deb PIGSTY · 1.0 · 8.2KiB	PIGSTY 1.0 u22.aarch64.pg15 : postgresql-15-pgcozy postgresql-15-pgcozy_1.0-1PIGSTY~jammy_arm64.deb PIGSTY · 1.0 · 8.2KiB	PIGSTY 1.0 u22.aarch64.pg14 : postgresql-14-pgcozy postgresql-14-pgcozy_1.0-1PIGSTY~jammy_arm64.deb PIGSTY · 1.0 · 8.2KiB
u24.x86_64	PIGSTY 1.0 u24.x86_64.pg18 : postgresql-18-pgcozy postgresql-18-pgcozy_1.0-1PIGSTY~noble_amd64.deb PIGSTY · 1.0 · 8.2KiB	PIGSTY 1.0 u24.x86_64.pg17 : postgresql-17-pgcozy postgresql-17-pgcozy_1.0-1PIGSTY~noble_amd64.deb PIGSTY · 1.0 · 8.2KiB	PIGSTY 1.0 u24.x86_64.pg16 : postgresql-16-pgcozy postgresql-16-pgcozy_1.0-1PIGSTY~noble_amd64.deb PIGSTY · 1.0 · 8.2KiB	PIGSTY 1.0 u24.x86_64.pg15 : postgresql-15-pgcozy postgresql-15-pgcozy_1.0-1PIGSTY~noble_amd64.deb PIGSTY · 1.0 · 8.2KiB	PIGSTY 1.0 u24.x86_64.pg14 : postgresql-14-pgcozy postgresql-14-pgcozy_1.0-1PIGSTY~noble_amd64.deb PIGSTY · 1.0 · 8.2KiB
u24.aarch64	PIGSTY 1.0 u24.aarch64.pg18 : postgresql-18-pgcozy postgresql-18-pgcozy_1.0-1PIGSTY~noble_arm64.deb PIGSTY · 1.0 · 8.2KiB	PIGSTY 1.0 u24.aarch64.pg17 : postgresql-17-pgcozy postgresql-17-pgcozy_1.0-1PIGSTY~noble_arm64.deb PIGSTY · 1.0 · 8.2KiB	PIGSTY 1.0 u24.aarch64.pg16 : postgresql-16-pgcozy postgresql-16-pgcozy_1.0-1PIGSTY~noble_arm64.deb PIGSTY · 1.0 · 8.2KiB	PIGSTY 1.0 u24.aarch64.pg15 : postgresql-15-pgcozy postgresql-15-pgcozy_1.0-1PIGSTY~noble_arm64.deb PIGSTY · 1.0 · 8.2KiB	PIGSTY 1.0 u24.aarch64.pg14 : postgresql-14-pgcozy postgresql-14-pgcozy_1.0-1PIGSTY~noble_arm64.deb PIGSTY · 1.0 · 8.2KiB
u26.x86_64	PIGSTY 1.0 u26.x86_64.pg18 : postgresql-18-pgcozy postgresql-18-pgcozy_1.0-1PIGSTY~resolute_amd64.deb PIGSTY · 1.0 · 7.5KiB	PIGSTY 1.0 u26.x86_64.pg17 : postgresql-17-pgcozy postgresql-17-pgcozy_1.0-1PIGSTY~resolute_amd64.deb PIGSTY · 1.0 · 7.5KiB	PIGSTY 1.0 u26.x86_64.pg16 : postgresql-16-pgcozy postgresql-16-pgcozy_1.0-1PIGSTY~resolute_amd64.deb PIGSTY · 1.0 · 7.4KiB	PIGSTY 1.0 u26.x86_64.pg15 : postgresql-15-pgcozy postgresql-15-pgcozy_1.0-1PIGSTY~resolute_amd64.deb PIGSTY · 1.0 · 7.5KiB	PIGSTY 1.0 u26.x86_64.pg14 : postgresql-14-pgcozy postgresql-14-pgcozy_1.0-1PIGSTY~resolute_amd64.deb PIGSTY · 1.0 · 7.5KiB
u26.aarch64	PIGSTY 1.0 u26.aarch64.pg18 : postgresql-18-pgcozy postgresql-18-pgcozy_1.0-1PIGSTY~resolute_arm64.deb PIGSTY · 1.0 · 7.5KiB	PIGSTY 1.0 u26.aarch64.pg17 : postgresql-17-pgcozy postgresql-17-pgcozy_1.0-1PIGSTY~resolute_arm64.deb PIGSTY · 1.0 · 7.5KiB	PIGSTY 1.0 u26.aarch64.pg16 : postgresql-16-pgcozy postgresql-16-pgcozy_1.0-1PIGSTY~resolute_arm64.deb PIGSTY · 1.0 · 7.4KiB	PIGSTY 1.0 u26.aarch64.pg15 : postgresql-15-pgcozy postgresql-15-pgcozy_1.0-1PIGSTY~resolute_arm64.deb PIGSTY · 1.0 · 7.5KiB	PIGSTY 1.0 u26.aarch64.pg14 : postgresql-14-pgcozy postgresql-14-pgcozy_1.0-1PIGSTY~resolute_arm64.deb PIGSTY · 1.0 · 7.5KiB

构建

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

BASH

pig build pkg pgcozy         # 构建 RPM / DEB 包

安装

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

BASH

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：

安装

BASH

pig install pgcozy;          # 当前活跃 PG 版本安装

pig

BASH

pig ext install -y pgcozy -v 18  # PG 18
pig ext install -y pgcozy -v 17  # PG 17
pig ext install -y pgcozy -v 16  # PG 16
pig ext install -y pgcozy -v 15  # PG 15
pig ext install -y pgcozy -v 14  # PG 14

dnf

BASH

dnf install -y pgcozy_18       # PG 18
dnf install -y pgcozy_17       # PG 17
dnf install -y pgcozy_16       # PG 16
dnf install -y pgcozy_15       # PG 15
dnf install -y pgcozy_14       # PG 14

apt

BASH

apt install -y postgresql-18-pgcozy   # PG 18
apt install -y postgresql-17-pgcozy   # PG 17
apt install -y postgresql-16-pgcozy   # PG 16
apt install -y postgresql-15-pgcozy   # PG 15
apt install -y postgresql-14-pgcozy   # PG 14

创建扩展：

SQL

CREATE EXTENSION pgcozy CASCADE;  -- 依赖: pg_buffercache, pg_prewarm

用法

pgcozy: 根据之前的 pg_buffercache 快照预热 PostgreSQL 共享缓冲区

pgcozy 对当前共享缓冲区状态进行快照，并可稍后从这些快照恢复（预热）缓冲区。需要 pg_buffercache 和 pg_prewarm 扩展。

初始化

SQL

SELECT pgcozy_init();

创建 pgcozy 模式，包含 snapshots 表和 cozy_type 类型。

拍摄快照

SQL

-- 快照使用次数 >= 3 的缓冲页（热度 1-5）
SELECT pgcozy_snapshot(3);

-- 快照所有缓冲页（热度 = 0）
SELECT pgcozy_snapshot(0);

快照以 JSONB 格式存储在 pgcozy.snapshots 中，包含列：id、snapshot_date、snapshot。每条记录包含 table_name、block_no 和 popularity。

从快照预热

SQL

-- 从特定快照 ID 预热
SELECT pgcozy_warm(1);

-- 从最新快照预热
SELECT pgcozy_warm(0);

查看快照

SQL

SELECT id, snapshot_date FROM pgcozy.snapshots;

快照以 JSONB 存储，可以查看、备份或在服务器之间传输。

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