当前位置：首页 > news >正文

PostgreSQL 向量扩展插件pgvector安装和使用

news 2025/7/11 7:19:37

文章目录

PostgreSQL 向量扩展插件pgvector安装和使用
- 安装postgresql
- pgvector下载和安装
- 安装错误调试
- - 错误调试1
  - - 尝试解决 AP1 ：启动postgresql
  - 错误调试2
  - - 尝试解决 AP2 : 使用apt-get install postgresql-server
  - 错误调试3
  - - 尝试解决 AP3 ：卸载apt-get 安装
  - 错误调试4
  - - 设置环境变量PG_CONFIG
  - 编译成功
- 使用pgvector
- - 测试例
  - 列出当前数据库中已安装的扩展（extensions）
参考

PostgreSQL 向量扩展插件pgvector安装和使用

pgvector 是一个 PostgreSQL 扩展，能够让PostgreSQL 提供向量（vector）数据类型和相关操作功能。

参考：
https://github.com/pgvector/pgvector

安装postgresql

利用pgvector 前提是事先安装好postgresql，安装postgresql例可参考下文。

参考：
Linux（Ubuntu）源码安装postgresql16.3
https://editor.csdn.net/md/?articleId=142500497

pgvector下载和安装

安装命令如下：

cd 
git clone --branch v0.7.4 https://github.com/pgvector/pgvector.git
cd pgvector
make
make install # may need sudo

参考：
https://github.com/pgvector/pgvector

例：下载

root@autodl-container-616f40a3b3-41cb82d9:~#  su - postgres
postgres@autodl-container-616f40a3b3-41cb82d9:~$ pwd
/var/lib/postgresql
postgres@autodl-container-616f40a3b3-41cb82d9:~$ ls
10  pgsql16  postgresql-16.3  postgresql-16.3.tar.gz
postgres@autodl-container-616f40a3b3-41cb82d9:~$ git clone --branch v0.7.4 https://github.com/pgvector/pgvector.git
Cloning into 'pgvector'...
remote: Enumerating objects: 10650, done.
remote: Counting objects: 100% (4165/4165), done.
remote: Compressing objects: 100% (954/954), done.
remote: Total 10650 (delta 3388), reused 3493 (delta 3193), pack-reused 6485 (from 1)
Receiving objects: 100% (10650/10650), 1.60 MiB | 544.00 KiB/s, done.
Resolving deltas: 100% (7952/7952), done.
Note: checking out '103ac50f1a90b47a72003e8e8628a55ec372f202'.You are in 'detached HEAD' state. You can look around, make experimental
changes and commit them, and you can discard any commits you make in this
state without impacting any branches by performing another checkout.If you want to create a new branch to retain commits you create, you may
do so (now or later) by using -b with the checkout command again. Example:git checkout -b <new-branch-name>postgres@autodl-container-616f40a3b3-41cb82d9:~$

安装错误调试

错误调试1

尝试编译和安装
例：

postgres@autodl-container-616f40a3b3-41cb82d9:~/pgvector$ make
You need to install postgresql-server-dev-X.Y for building a server-side extension or libpq-dev for building a client-side application.
cp sql/vector.sql sql/vector--0.7.4.sql

编译时候汇报如上错误可能是由于postgresql没有启动。

postgres@autodl-container-616f40a3b3-41cb82d9:~/pgvector$ psql
psql: error: connection to server on socket "/tmp/.s.PGSQL.5432" failed: Connection refusedIs the server running locally and accepting connections on that socket?
postgres@autodl-container-616f40a3b3-41cb82d9:~/pgvector$ 
postgres@autodl-container-616f40a3b3-41cb82d9:~$ ps -xf|grep postgres1504 pts/3    S+     0:00  \_ grep postgres
postgres@autodl-container-616f40a3b3-41cb82d9:~$ pg_ctl -D /var/lib/postgresql/pgsql16/data status
pg_ctl: no server running

尝试解决 AP1 ：启动postgresql

postgres@autodl-container-616f40a3b3-41cb82d9:~$ pg_ctl -D /var/lib/postgresql/pgsql16/data -l logfile start
pg_ctl: another server might be running; trying to start server anyway
waiting for server to start.... done
server started
postgres@autodl-container-616f40a3b3-41cb82d9:~$  ps -xf|grep postgres1197 pts/0    S+     0:00  \_ grep postgres1188 ?        Ss     0:00 /var/lib/postgresql/pgsql16/bin/postgres -D /var/lib/postgresql/pgsql16/data1189 ?        Ss     0:00  \_ postgres: checkpointer 1190 ?        Ss     0:00  \_ postgres: background writer 1192 ?        Ss     0:00  \_ postgres: walwriter 1193 ?        Ss     0:00  \_ postgres: autovacuum launcher 1194 ?        Ss     0:00  \_ postgres: logical replication launcher 
postgres@autodl-container-616f40a3b3-41cb82d9:~$  psql
psql (16.3)
Type "help" for help.postgres=# help
You are using psql, the command-line interface to PostgreSQL.
Type:  \copyright for distribution terms\h for help with SQL commands\? for help with psql commands\g or terminate with semicolon to execute query\q to quit
postgres=#

错误调试2

再次编译，出错。

postgres@autodl-container-616f40a3b3-41cb82d9:~$ pwd
/var/lib/postgresql
postgres@autodl-container-616f40a3b3-41cb82d9:~$ cd pgvector
postgres@autodl-container-616f40a3b3-41cb82d9:~/pgvector$ 
postgres@autodl-container-616f40a3b3-41cb82d9:~/pgvector$ make
You need to install postgresql-server-dev-X.Y for building a server-side extension or libpq-dev for building a client-side application.
make: Nothing to be done for 'all'.
postgres@autodl-container-616f40a3b3-41cb82d9:~/pgvector$ postgres --version
postgres (PostgreSQL) 16.3
postgres@autodl-container-616f40a3b3-41cb82d9:~/pgvector$ psql --version
psql (PostgreSQL) 16.3

无法识别postgresql-server-dev-X.Y 。

尝试解决 AP2 : 使用apt-get install postgresql-server

postgres@autodl-container-616f40a3b3-41cb82d9:~/pgvector$ apt-get install postgresql-server*
E: Could not open lock file /var/lib/dpkg/lock-frontend - open (13: Permission denied)
E: Unable to acquire the dpkg frontend lock (/var/lib/dpkg/lock-frontend), are you root?
postgres@autodl-container-616f40a3b3-41cb82d9:~/pgvector$ exit
logout
root@autodl-container-616f40a3b3-41cb82d9:~# apt-get install postgresql-server*
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Note, selecting 'postgresql-server-dev-all' for glob 'postgresql-server*'
Note, selecting 'postgresql-server' for glob 'postgresql-server*'
Note, selecting 'postgresql-server-dev-10' for glob 'postgresql-server*'
The following additional packages will be installed:dctrl-tools iproute2 libatm1 libmnl0 libpq-dev libxtables12
Suggested packages:debtags iproute2-doc postgresql-doc-10
The following NEW packages will be installed:dctrl-tools iproute2 libatm1 libmnl0 libpq-dev libxtables12 postgresql-server-dev-10 postgresql-server-dev-all
0 upgraded, 8 newly installed, 0 to remove and 169 not upgraded.
Need to get 1983 kB of archives.
After this operation, 10.9 MB of additional disk space will be used.
Do you want to continue? [Y/n] Y
Get:1 https://repo.huaweicloud.com/ubuntu bionic/main amd64 libmnl0 amd64 1.0.4-2 [12.3 kB]
Get:2 https://repo.huaweicloud.com/ubuntu bionic-updates/main amd64 iproute2 amd64 4.15.0-2ubuntu1.3 [721 kB]
Get:3 https://repo.huaweicloud.com/ubuntu bionic/main amd64 libatm1 amd64 1:2.5.1-2build1 [21.9 kB]
Get:4 https://repo.huaweicloud.com/ubuntu bionic-updates/main amd64 libxtables12 amd64 1.6.1-2ubuntu2.1 [28.1 kB]
Get:5 https://repo.huaweicloud.com/ubuntu bionic/main amd64 dctrl-tools amd64 2.24-2build1 [60.9 kB]
Get:6 https://repo.huaweicloud.com/ubuntu bionic-security/main amd64 libpq-dev amd64 10.23-0ubuntu0.18.04.2 [219 kB]
Get:7 https://repo.huaweicloud.com/ubuntu bionic-security/universe amd64 postgresql-server-dev-10 amd64 10.23-0ubuntu0.18.04.2 [905 kB]
Get:8 https://repo.huaweicloud.com/ubuntu bionic-security/universe amd64 postgresql-server-dev-all all 190ubuntu0.1 [14.1 kB]
Fetched 1983 kB in 1s (3436 kB/s)                     
debconf: delaying package configuration, since apt-utils is not installed
Selecting previously unselected package libmnl0:amd64.
(Reading database ... 44409 files and directories currently installed.)
Preparing to unpack .../0-libmnl0_1.0.4-2_amd64.deb ...
Unpacking libmnl0:amd64 (1.0.4-2) ...
Selecting previously unselected package iproute2.
Preparing to unpack .../1-iproute2_4.15.0-2ubuntu1.3_amd64.deb ...
Unpacking iproute2 (4.15.0-2ubuntu1.3) ...
Selecting previously unselected package libatm1:amd64.
Preparing to unpack .../2-libatm1_1%3a2.5.1-2build1_amd64.deb ...
Unpacking libatm1:amd64 (1:2.5.1-2build1) ...
Selecting previously unselected package libxtables12:amd64.
Preparing to unpack .../3-libxtables12_1.6.1-2ubuntu2.1_amd64.deb ...
Unpacking libxtables12:amd64 (1.6.1-2ubuntu2.1) ...
Selecting previously unselected package dctrl-tools.
Preparing to unpack .../4-dctrl-tools_2.24-2build1_amd64.deb ...
Unpacking dctrl-tools (2.24-2build1) ...
Selecting previously unselected package libpq-dev.
Preparing to unpack .../5-libpq-dev_10.23-0ubuntu0.18.04.2_amd64.deb ...
Unpacking libpq-dev (10.23-0ubuntu0.18.04.2) ...
Selecting previously unselected package postgresql-server-dev-10.
Preparing to unpack .../6-postgresql-server-dev-10_10.23-0ubuntu0.18.04.2_amd64.deb ...
Unpacking postgresql-server-dev-10 (10.23-0ubuntu0.18.04.2) ...
Selecting previously unselected package postgresql-server-dev-all.
Preparing to unpack .../7-postgresql-server-dev-all_190ubuntu0.1_all.deb ...
Unpacking postgresql-server-dev-all (190ubuntu0.1) ...
Setting up libpq-dev (10.23-0ubuntu0.18.04.2) ...
Setting up dctrl-tools (2.24-2build1) ...
Setting up postgresql-server-dev-10 (10.23-0ubuntu0.18.04.2) ...
Setting up libatm1:amd64 (1:2.5.1-2build1) ...
Setting up libxtables12:amd64 (1.6.1-2ubuntu2.1) ...
Setting up libmnl0:amd64 (1.0.4-2) ...
Setting up iproute2 (4.15.0-2ubuntu1.3) ...
Setting up postgresql-server-dev-all (190ubuntu0.1) ...
Processing triggers for libc-bin (2.27-3ubuntu1.2) ...
root@autodl-container-616f40a3b3-41cb82d9:~#

安装的版本不是最新的版本而是10.23。

错误调试3

再次编译。


postgres@autodl-container-616f40a3b3-41cb82d9:~/pgvector$ make
gcc -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Wendif-labels -Wmissing-format-attribute -Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision=standard -Wno-format-truncation -g -g -O2 -fdebug-prefix-map=/build/postgresql-10-XHR5kl/postgresql-10-10.23=. -fstack-protector-strong -Wformat -Werror=format-security -fno-omit-frame-pointer -march=native -ftree-vectorize -fassociative-math -fno-signed-zeros -fno-trapping-math -fPIC -I. -I./ -I/usr/include/postgresql/10/server -I/usr/include/postgresql/internal  -Wdate-time -D_FORTIFY_SOURCE=2 -D_GNU_SOURCE -I/usr/include/libxml2  -I/usr/include/mit-krb5  -c -o src/bitutils.o src/bitutils.c
In file included from src/bitutils.c:3:0:
src/bitutils.h:8:2: error: #error "Requires PostgreSQL 12+"#error "Requires PostgreSQL 12+"^~~~~
src/bitutils.c:5:10: fatal error: port/pg_bitutils.h: No such file or directory#include "port/pg_bitutils.h"^~~~~~~~~~~~~~~~~~~~
compilation terminated.
<builtin>: recipe for target 'src/bitutils.o' failed
make: *** [src/bitutils.o] Error 1
postgres@autodl-container-616f40a3b3-41cb82d9:~/pgvector$

make编译调用的postgresql不是之前安装的 16.3，而是apt-get 安装的10.23版本。

尝试解决 AP3 ：卸载apt-get 安装

卸载apt-get 安装的10.23版本

参考：
卸载apt-get 安装的PostgreSQL版本
https://blog.csdn.net/lukeUnique/article/details/142610650

错误调试4

再次编译。

root@autodl-container-616f40a3b3-41cb82d9:~# su - postgres
postgres@autodl-container-616f40a3b3-41cb82d9:~$ cd /var/lib/postgresql/pgvector
postgres@autodl-container-616f40a3b3-41cb82d9:~/pgvector$ ls
CHANGELOG.md  Dockerfile  LICENSE  META.json  Makefile  Makefile.win  README.md  logfile  sql  src  test  vector.control
postgres@autodl-container-616f40a3b3-41cb82d9:~/pgvector$ make
Makefile:48: /usr/lib/postgresql/10/lib/pgxs/src/makefiles/pgxs.mk: No such file or directory
make: *** No rule to make target '/usr/lib/postgresql/10/lib/pgxs/src/makefiles/pgxs.mk'.  Stop.
postgres@autodl-container-616f40a3b3-41cb82d9:~/pgvector$

make编译pgvector时无法识别安装的postgresql。

设置环境变量PG_CONFIG

为了让make命令找到安装的postgresql 16.3版本。
重新修改.bash_profile，配置PG_CONFIG和LD_LIBRARY_PATH，指定安装的postgresql 16.3版本。

例：

$ vi .bash_profile

修改成如下内容。

# .bash_profile# Get the aliases and functions
if [ -f ~/.bashrc ]; then. ~/.bashrc
fi# User specific environment and startup programs
export PG_HOME=/var/lib/postgresql/pgsql16
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/var/lib/postgresql/pgsql16/lib
export PG_CONFIG=/var/lib/postgresql/pgsql16/bin/pg_config
export PGDATA=/var/lib/postgresql/pgsql16/data
PATH=$PATH:$HOME/.local/bin:$HOME/bin:$PG_HOME/bin
alias psql='/var/lib/postgresql/pgsql16/bin/psql'
export PATH

编译成功

根据上面的错误调试过程，我们可以看到在编译时候需要配置PG_CONFIG。

root@autodl-container-616f40a3b3-41cb82d9:~# su - postgres
postgres@autodl-container-616f40a3b3-41cb82d9:~$ ls
logfile  pgsql16  pgvector  postgresql-16.3  postgresql-16.3.tar.gz
postgres@autodl-container-616f40a3b3-41cb82d9:~$ cd pgvector
postgres@autodl-container-616f40a3b3-41cb82d9:~/pgvector$ ls
CHANGELOG.md  Dockerfile  LICENSE  META.json  Makefile  Makefile.win  README.md  logfile  sql  src  test  vector.control
postgres@autodl-container-616f40a3b3-41cb82d9:~/pgvector$ make
gcc -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Werror=vla -Wendif-labels -Wmissing-format-attribute -Wimplicit-fallthrough=3 -Wshadow=compatible-local -Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision=standard -Wno-format-truncation -O2 -march=native -ftree-vectorize -fassociative-math -fno-signed-zeros -fno-trapping-math -fPIC -fvisibility=hidden -I. -I./ -I/var/lib/postgresql/pgsql16/include/server -I/var/lib/postgresql/pgsql16/include/internal  -D_GNU_SOURCE   -c -o src/bitutils.o src/bitutils.c
gcc -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Werror=vla -Wendif-labels -Wmissing-format-attribute -Wimplicit-fallthrough=3 -Wshadow=compatible-local -Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision=standard -Wno-format-truncation -O2 -march=native -ftree-vectorize -fassociative-math -fno-signed-zeros -fno-trapping-math -fPIC -fvisibility=hidden -I. -I./ -I/var/lib/postgresql/pgsql16/include/server -I/var/lib/postgresql/pgsql16/include/internal  -D_GNU_SOURCE   -c -o src/bitvec.o src/bitvec.c
gcc -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Werror=vla -Wendif-labels -Wmissing-format-attribute -Wimplicit-fallthrough=3 -Wshadow=compatible-local -Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision=standard -Wno-format-truncation -O2 -march=native -ftree-vectorize -fassociative-math -fno-signed-zeros -fno-trapping-math -fPIC -fvisibility=hidden -I. -I./ -I/var/lib/postgresql/pgsql16/include/server -I/var/lib/postgresql/pgsql16/include/internal  -D_GNU_SOURCE   -c -o src/halfutils.o src/halfutils.c
gcc -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Werror=vla -Wendif-labels -Wmissing-format-attribute -Wimplicit-fallthrough=3 -Wshadow=compatible-local -Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision=standard -Wno-format-truncation -O2 -march=native -ftree-vectorize -fassociative-math -fno-signed-zeros -fno-trapping-math -fPIC -fvisibility=hidden -I. -I./ -I/var/lib/postgresql/pgsql16/include/server -I/var/lib/postgresql/pgsql16/include/internal  -D_GNU_SOURCE   -c -o src/halfvec.o src/halfvec.c
gcc -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Werror=vla -Wendif-labels -Wmissing-format-attribute -Wimplicit-fallthrough=3 -Wshadow=compatible-local -Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision=standard -Wno-format-truncation -O2 -march=native -ftree-vectorize -fassociative-math -fno-signed-zeros -fno-trapping-math -fPIC -fvisibility=hidden -I. -I./ -I/var/lib/postgresql/pgsql16/include/server -I/var/lib/postgresql/pgsql16/include/internal  -D_GNU_SOURCE   -c -o src/hnsw.o src/hnsw.c
gcc -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Werror=vla -Wendif-labels -Wmissing-format-attribute -Wimplicit-fallthrough=3 -Wshadow=compatible-local -Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision=standard -Wno-format-truncation -O2 -march=native -ftree-vectorize -fassociative-math -fno-signed-zeros -fno-trapping-math -fPIC -fvisibility=hidden -I. -I./ -I/var/lib/postgresql/pgsql16/include/server -I/var/lib/postgresql/pgsql16/include/internal  -D_GNU_SOURCE   -c -o src/hnswbuild.o src/hnswbuild.c
gcc -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Werror=vla -Wendif-labels -Wmissing-format-attribute -Wimplicit-fallthrough=3 -Wshadow=compatible-local -Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision=standard -Wno-format-truncation -O2 -march=native -ftree-vectorize -fassociative-math -fno-signed-zeros -fno-trapping-math -fPIC -fvisibility=hidden -I. -I./ -I/var/lib/postgresql/pgsql16/include/server -I/var/lib/postgresql/pgsql16/include/internal  -D_GNU_SOURCE   -c -o src/hnswinsert.o src/hnswinsert.c
gcc -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Werror=vla -Wendif-labels -Wmissing-format-attribute -Wimplicit-fallthrough=3 -Wshadow=compatible-local -Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision=standard -Wno-format-truncation -O2 -march=native -ftree-vectorize -fassociative-math -fno-signed-zeros -fno-trapping-math -fPIC -fvisibility=hidden -I. -I./ -I/var/lib/postgresql/pgsql16/include/server -I/var/lib/postgresql/pgsql16/include/internal  -D_GNU_SOURCE   -c -o src/hnswscan.o src/hnswscan.c
gcc -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Werror=vla -Wendif-labels -Wmissing-format-attribute -Wimplicit-fallthrough=3 -Wshadow=compatible-local -Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision=standard -Wno-format-truncation -O2 -march=native -ftree-vectorize -fassociative-math -fno-signed-zeros -fno-trapping-math -fPIC -fvisibility=hidden -I. -I./ -I/var/lib/postgresql/pgsql16/include/server -I/var/lib/postgresql/pgsql16/include/internal  -D_GNU_SOURCE   -c -o src/hnswutils.o src/hnswutils.c
gcc -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Werror=vla -Wendif-labels -Wmissing-format-attribute -Wimplicit-fallthrough=3 -Wshadow=compatible-local -Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision=standard -Wno-format-truncation -O2 -march=native -ftree-vectorize -fassociative-math -fno-signed-zeros -fno-trapping-math -fPIC -fvisibility=hidden -I. -I./ -I/var/lib/postgresql/pgsql16/include/server -I/var/lib/postgresql/pgsql16/include/internal  -D_GNU_SOURCE   -c -o src/hnswvacuum.o src/hnswvacuum.c
gcc -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Werror=vla -Wendif-labels -Wmissing-format-attribute -Wimplicit-fallthrough=3 -Wshadow=compatible-local -Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision=standard -Wno-format-truncation -O2 -march=native -ftree-vectorize -fassociative-math -fno-signed-zeros -fno-trapping-math -fPIC -fvisibility=hidden -I. -I./ -I/var/lib/postgresql/pgsql16/include/server -I/var/lib/postgresql/pgsql16/include/internal  -D_GNU_SOURCE   -c -o src/ivfbuild.o src/ivfbuild.c
gcc -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Werror=vla -Wendif-labels -Wmissing-format-attribute -Wimplicit-fallthrough=3 -Wshadow=compatible-local -Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision=standard -Wno-format-truncation -O2 -march=native -ftree-vectorize -fassociative-math -fno-signed-zeros -fno-trapping-math -fPIC -fvisibility=hidden -I. -I./ -I/var/lib/postgresql/pgsql16/include/server -I/var/lib/postgresql/pgsql16/include/internal  -D_GNU_SOURCE   -c -o src/ivfflat.o src/ivfflat.c
gcc -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Werror=vla -Wendif-labels -Wmissing-format-attribute -Wimplicit-fallthrough=3 -Wshadow=compatible-local -Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision=standard -Wno-format-truncation -O2 -march=native -ftree-vectorize -fassociative-math -fno-signed-zeros -fno-trapping-math -fPIC -fvisibility=hidden -I. -I./ -I/var/lib/postgresql/pgsql16/include/server -I/var/lib/postgresql/pgsql16/include/internal  -D_GNU_SOURCE   -c -o src/ivfinsert.o src/ivfinsert.c
gcc -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Werror=vla -Wendif-labels -Wmissing-format-attribute -Wimplicit-fallthrough=3 -Wshadow=compatible-local -Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision=standard -Wno-format-truncation -O2 -march=native -ftree-vectorize -fassociative-math -fno-signed-zeros -fno-trapping-math -fPIC -fvisibility=hidden -I. -I./ -I/var/lib/postgresql/pgsql16/include/server -I/var/lib/postgresql/pgsql16/include/internal  -D_GNU_SOURCE   -c -o src/ivfkmeans.o src/ivfkmeans.c
gcc -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Werror=vla -Wendif-labels -Wmissing-format-attribute -Wimplicit-fallthrough=3 -Wshadow=compatible-local -Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision=standard -Wno-format-truncation -O2 -march=native -ftree-vectorize -fassociative-math -fno-signed-zeros -fno-trapping-math -fPIC -fvisibility=hidden -I. -I./ -I/var/lib/postgresql/pgsql16/include/server -I/var/lib/postgresql/pgsql16/include/internal  -D_GNU_SOURCE   -c -o src/ivfscan.o src/ivfscan.c
gcc -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Werror=vla -Wendif-labels -Wmissing-format-attribute -Wimplicit-fallthrough=3 -Wshadow=compatible-local -Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision=standard -Wno-format-truncation -O2 -march=native -ftree-vectorize -fassociative-math -fno-signed-zeros -fno-trapping-math -fPIC -fvisibility=hidden -I. -I./ -I/var/lib/postgresql/pgsql16/include/server -I/var/lib/postgresql/pgsql16/include/internal  -D_GNU_SOURCE   -c -o src/ivfutils.o src/ivfutils.c
gcc -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Werror=vla -Wendif-labels -Wmissing-format-attribute -Wimplicit-fallthrough=3 -Wshadow=compatible-local -Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision=standard -Wno-format-truncation -O2 -march=native -ftree-vectorize -fassociative-math -fno-signed-zeros -fno-trapping-math -fPIC -fvisibility=hidden -I. -I./ -I/var/lib/postgresql/pgsql16/include/server -I/var/lib/postgresql/pgsql16/include/internal  -D_GNU_SOURCE   -c -o src/ivfvacuum.o src/ivfvacuum.c
gcc -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Werror=vla -Wendif-labels -Wmissing-format-attribute -Wimplicit-fallthrough=3 -Wshadow=compatible-local -Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision=standard -Wno-format-truncation -O2 -march=native -ftree-vectorize -fassociative-math -fno-signed-zeros -fno-trapping-math -fPIC -fvisibility=hidden -I. -I./ -I/var/lib/postgresql/pgsql16/include/server -I/var/lib/postgresql/pgsql16/include/internal  -D_GNU_SOURCE   -c -o src/sparsevec.o src/sparsevec.c
gcc -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Werror=vla -Wendif-labels -Wmissing-format-attribute -Wimplicit-fallthrough=3 -Wshadow=compatible-local -Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision=standard -Wno-format-truncation -O2 -march=native -ftree-vectorize -fassociative-math -fno-signed-zeros -fno-trapping-math -fPIC -fvisibility=hidden -I. -I./ -I/var/lib/postgresql/pgsql16/include/server -I/var/lib/postgresql/pgsql16/include/internal  -D_GNU_SOURCE   -c -o src/vector.o src/vector.c
gcc -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Werror=vla -Wendif-labels -Wmissing-format-attribute -Wimplicit-fallthrough=3 -Wshadow=compatible-local -Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision=standard -Wno-format-truncation -O2 -march=native -ftree-vectorize -fassociative-math -fno-signed-zeros -fno-trapping-math -fPIC -fvisibility=hidden -shared -o vector.so src/bitutils.o src/bitvec.o src/halfutils.o src/halfvec.o src/hnsw.o src/hnswbuild.o src/hnswinsert.o src/hnswscan.o src/hnswutils.o src/hnswvacuum.o src/ivfbuild.o src/ivfflat.o src/ivfinsert.o src/ivfkmeans.o src/ivfscan.o src/ivfutils.o src/ivfvacuum.o src/sparsevec.o src/vector.o -L/var/lib/postgresql/pgsql16/lib    -Wl,--as-needed -Wl,-rpath,'/var/lib/postgresql/pgsql16/lib',--enable-new-dtags  -fvisibility=hidden 
postgres@autodl-container-616f40a3b3-41cb82d9:~/pgvector$

make install

postgres@autodl-container-616f40a3b3-41cb82d9:~/pgvector$  make install
/bin/mkdir -p '/var/lib/postgresql/pgsql16/lib'
/bin/mkdir -p '/var/lib/postgresql/pgsql16/share/extension'
/bin/mkdir -p '/var/lib/postgresql/pgsql16/share/extension'
/usr/bin/install -c -m 755  vector.so '/var/lib/postgresql/pgsql16/lib/vector.so'
/usr/bin/install -c -m 644 .//vector.control '/var/lib/postgresql/pgsql16/share/extension/'
/usr/bin/install -c -m 644 .//sql/vector--0.5.0--0.5.1.sql .//sql/vector--0.1.3--0.1.4.sql .//sql/vector--0.1.1--0.1.3.sql .//sql/vector--0.4.3--0.4.4.sql .//sql/vector--0.1.7--0.1.8.sql .//sql/vector--0.2.0--0.2.1.sql .//sql/vector--0.1.5--0.1.6.sql .//sql/vector--0.5.1--0.6.0.sql .//sql/vector--0.3.1--0.3.2.sql .//sql/vector--0.1.8--0.2.0.sql .//sql/vector--0.2.6--0.2.7.sql .//sql/vector--0.3.0--0.3.1.sql .//sql/vector--0.4.2--0.4.3.sql .//sql/vector--0.6.2--0.7.0.sql .//sql/vector--0.1.4--0.1.5.sql .//sql/vector--0.2.7--0.3.0.sql .//sql/vector--0.6.0--0.6.1.sql .//sql/vector--0.4.1--0.4.2.sql .//sql/vector--0.7.3--0.7.4.sql .//sql/vector--0.4.0--0.4.1.sql .//sql/vector--0.7.1--0.7.2.sql .//sql/vector--0.1.0--0.1.1.sql .//sql/vector--0.2.3--0.2.4.sql .//sql/vector--0.1.6--0.1.7.sql .//sql/vector--0.3.2--0.4.0.sql .//sql/vector--0.2.5--0.2.6.sql .//sql/vector--0.4.4--0.5.0.sql .//sql/vector--0.2.1--0.2.2.sql .//sql/vector--0.7.2--0.7.3.sql .//sql/vector--0.7.0--0.7.1.sql .//sql/vector--0.2.2--0.2.3.sql .//sql/vector--0.6.1--0.6.2.sql .//sql/vector--0.2.4--0.2.5.sql sql/vector--0.7.4.sql '/var/lib/postgresql/pgsql16/share/extension/'
/bin/mkdir -p '/var/lib/postgresql/pgsql16/include/server/extension/vector/'
/usr/bin/install -c -m 644   .//src/halfvec.h .//src/sparsevec.h .//src/vector.h '/var/lib/postgresql/pgsql16/include/server/extension/vector/'
postgres@autodl-container-616f40a3b3-41cb82d9:~/pgvector$

pgvector的安装成功。

使用pgvector

使用参考https://github.com/pgvector/pgvector

Getting Started
Enable the extension (do this once in each database where you want to use it)CREATE EXTENSION vector;
Create a vector column with 3 dimensionsCREATE TABLE items (id bigserial PRIMARY KEY, embedding vector(3));
Insert vectorsINSERT INTO items (embedding) VALUES ('[1,2,3]'), ('[4,5,6]');
Get the nearest neighbors by L2 distanceSELECT * FROM items ORDER BY embedding <-> '[3,1,2]' LIMIT 5;
Also supports inner product (<#>), cosine distance (<=>), and L1 distance (<+>, added in 0.7.0)Note: <#> returns the negative inner product since Postgres only supports ASC order index scans on operators

测试例

postgres@autodl-container-616f40a3b3-41cb82d9:~/pgvector$ psql
psql (16.3)
Type "help" for help.postgres=# CREATE EXTENSION vector;
CREATE EXTENSION
postgres=# CREATE TABLE items (id bigserial PRIMARY KEY, embedding vector(3));
CREATE TABLE
postgres=# INSERT INTO items (embedding) VALUES ('[1,2,3]'), ('[4,5,6]');
INSERT 0 2
postgres=# SELECT * FROM items ORDER BY embedding <-> '[3,1,2]' LIMIT 5;id | embedding 
----+-----------1 | [1,2,3]2 | [4,5,6]
(2 rows)

列出当前数据库中已安装的扩展（extensions）


postgres=# \dxList of installed extensionsName   | Version |   Schema   |                     Description                      
---------+---------+------------+------------------------------------------------------plpgsql | 1.0     | pg_catalog | PL/pgSQL procedural languagevector  | 0.7.4   | public     | vector data type and ivfflat and hnsw access methods
(2 rows)postgres=#

参考

实战PG vector 构建DBA 个人知识库之二: 向量数据库与 PG vector 介绍
https://pgfans.cn/a/3606

数据库技术核心：向量检索（pgvector）
https://blog.csdn.net/ChaoMing_H/article/details/141257149

PostgreSQL向量数据插件–pgvector安装（附PostgreSQL安装）
https://blog.csdn.net/m0_62627802/article/details/135027327

PostgreSQL 向量扩展插件pgvector安装和使用

文章目录 PostgreSQL 向量扩展插件pgvector安装和使用安装postgresqlpgvector下载和安装安装错误调试错误调试1尝试解决 AP1 ：启动postgresql 错误调试2尝试解决 AP2 : 使用apt-get install postgresql-server 错误调试3尝试解决 AP3 ：卸载apt-get 安装 …...

编程日记 2024/10/1 23:40:31

【论文阅读】基于真实数据感知的模型功能窃取攻击

摘要目的模型功能窃取攻击是人工智能安全领域的核心问题之一，目的是利用有限的与目标模型有关的信息训练出性能接近的克隆模型，从而实现模型的功能窃取。针对此类问题，一类经典的工作是基于生成模型的方法，这类方法利用生成器…...

编程日记 2024/10/1 23:29:15

线程池：线程池的实现 | 日志

🌈个人主页： 南桥几晴秋 🌈C专栏： 南桥谈C 🌈C语言专栏： C语言学习系列 🌈Linux学习专栏： 南桥谈Linux 🌈数据结构学习专栏： 数据结构杂谈 🌈数据…...

编程日记 2024/10/1 23:25:11

海信和TCL雷鸟智能电视的体验

买了型号为32E2F(9008)的海信智能的电视有一段时间了，要使用这个智能电视还真能考验你的智商。海信电视有很多优点，它的屏幕比较靓丽，色彩好看，遥控器不用对着屏幕就能操作。但也有不少缺点。 1. 海信智能电视会强迫自动更新操作…...

编程日记 2024/10/1 23:21:07

自动化学习3：日志记录及测试报告的生成--自动化框架搭建

一.日志记录 1.配置文件pytest.ini：将日志写入文件方便日后查询或查看执行信息。需要将文件处理器（文件存放位置/时间/格式等等）添加到配置文件中的【日志记录器】 # pytest.ini [pytest] # ---------------日志文件，需要配合…...

编程日记 2024/10/1 23:20:05

【STM32单片机_(HAL库)】4-1【定时器TIM】定时器中断点灯实验

1.硬件 STM32单片机最小系统LED灯模块 2.软件 timer驱动文件添加定时器HAL驱动层文件添加GPIO常用函数定时器中断配置流程main.c程序 #include "sys.h" #include "delay.h" #include "led.h" #include "timer.h"int main(void) {H…...

编程日记 2024/10/1 23:19:03

Linux编译安装Mysql笔记

1.Mysql介绍 MySQL是一个广泛使用的开源关系型数据库管理系统（RDBMS），它基于SQL（Structured Query Language）进行操作。MySQL是由瑞典MySQL AB公司开发的，后来被Sun Microsystems收购，最终成为…...

编程日记 2024/10/1 23:14:59

在java后端发送HTTPClient请求

简介 HttpClient遵循http协议的客户端编程工具包支持最新的http协议部分依赖自动传递依赖了HttpClient的jar包明明项目中没有引入 HttpClient 的Maven坐标，但是却可以直接使用HttpClient原因是：阿里云的sdk依赖中传递依赖了HttpClient的jar包发送get请…...

编程日记 2024/10/1 23:13:58

【STM32单片机_(HAL库)】4-3-2【定时器TIM】测量按键按下时间1——编程实现捕获功能

测量按键按下时长思路测量按键按下时间实验目的使用定时器 2 通道 2 来捕获按键 （按键接PA0）按下时间，并通过串口打印。计一个数的时间：1us，PSC71，ARR65535 下降沿捕获、输入通道 2 映射在 TI2 上、不分…...

编程日记 2024/10/1 23:12:57

MySQL：2059 - Authentication plugin ‘caching_sha2_password‘ cannot be loaded

关于MySQL 客户端在尝试连接到 MySQL 服务器时报错：“2059 - Authentication plugin caching_sha2_password cannot be loaded”，具体是由于 MySQL 服务器默认使用的 caching_sha2_password 认证插件无法加载或不被当前客户端支持。错误原因 MySQL 8.0…...

编程日记 2024/10/1 23:09:54

【JavaSE】反射、枚举、lambda表达式

目录反射反射相关类获取类中属性相关方法常用获得类相关的方法示例常用获得类中属性相关的方法示例获得类中注解相关的方法反射优缺点枚举常用方法优缺点枚举与反射lambda表达式语法函数式接口简化规则使用示例变量捕获集合中的应用优缺点反射 Java的反射（reﬂ…...

编程日记 2024/10/1 23:06:51

P3227 [HNOI2013] 切糕

题意: n ∗ m n*m n∗m的矩阵,每个点可以选择一个值 a i , j k a_{i,j}k ai,jk,然后你能获得 w ( i , j , k ) w(i,j,k) w(i,j,k)的得分，但是相邻两点之间的差值有限制，让你求最大得分。考虑最小割。每个点 ( i , j ) (i,j) (i,j)弄出一条长为 R…...

编程日记 2024/10/1 23:01:46

超分服务的分量保存

分量说明分量的概念主要是对于显卡解码，编码和网络传输而言，显卡可以同时进行几个线程，多个显卡可以分布式计算，对分量进行AI识别，比如我们有cuda的显卡，cuda的核心量可以分给不同的分片视频，第…...

编程日记 2024/10/1 23:00:46

Windows11系统下SkyWalking环境搭建教程

目录前言SkyWalking简介SkyWalking下载Agent监控实现启动配置SkyWalking启动Java应用程序启动Elasticsearch安装总结前言本文为博主在项目环境搭建时记录的SkyWalking安装流程，希望对大家能够有所帮助，不足之处欢迎批评指正🤝&#x1f91…...

编程日记 2024/10/1 22:58:44

前端BOM常用操作

BOM操作常用命令详解及代码案例 BOM（Browser Object Model）是浏览器对象模型，是浏览器提供的JavaScript操作浏览器的API。BOM提供了与网页无关的浏览器的功能对象，虽然没有正式的标准，但现代浏览器已经几乎实现了Java…...

编程日记 2024/10/1 22:56:42

【Go】-viper库的使用

目录 viper简介 viper使用通过viper.Set设置值读取配置文件说明读取配置文件读取多个配置文件读取配置项的值读取命令行的值 io.Reader中读取值写配置文件 WriteConfig() 和 SafeWriteConfig() 区别: viper简介配置管理解析库，是由大神 Steve Fr…...

编程日记 2024/10/1 22:53:39

JavaWeb酒店管理系统（详细版）

✅作者简介：2022年博客新星第八。热爱国学的Java后端开发者，修心和技术同步精进。 🍎个人主页：Java Fans的博客 🍊个人信条：不迁怒，不贰过。小知识，大智慧。 💞当前专栏…...

编程日记 2024/10/1 22:52:38

C++ | 定长内存池 | 对象池

文章目录 C | 定长内存池 | 对象池一、内存池的引入二、代码中的内存池实现 - ObjectPool类（一）整体结构（二）内存分配 - New函数（三）内存回收 - Delete函数三、内存池在TreeNode示例中的性能测试演示四、脱…...

编程日记 2024/10/1 22:50:36

python画图|自制渐变柱状图

在前述学习过程中，我们已经通过官网学习了如何绘制渐变的柱状图及其背景。掌握一门技能的最佳检验方式就是通过实战，因此，本文尝试做一些渐变设计。前述学习记录可查看链接： Python画图|渐变背景-CSDN博客【1】柱状图渐变 …...

编程日记 2024/10/1 22:49:35

基于RPA+BERT的文档辅助“悦读”系统 | OPENAIGC开发者大赛高校组AI创作力奖

在第二届拯救者杯OPENAIGC开发者大赛中，涌现出一批技术突出、创意卓越的作品。为了让这些优秀项目被更多人看到，我们特意开设了优秀作品报道专栏，旨在展示其独特之处和开发者的精彩故事。无论您是技术专家还是爱好者，希望能带给…...

编程日记 2024/10/1 22:48:34

Rust 异步编程

Rust 异步编程引言 Rust 是一种系统编程语言，以其高性能、安全性以及零成本抽象而著称。在多核处理器成为主流的今天，异步编程成为了一种提高应用性能、优化资源利用的有效手段。本文将深入探讨 Rust 异步编程的核心概念、常用库以及最佳实践。异步编程基础什么是异步…...

编程新知 2025/6/20 11:52:30

vue3+vite项目中使用.env文件环境变量方法

vue3vite项目中使用.env文件环境变量方法 .env文件作用命名规则常用的配置项示例使用方法注意事项在vite.config.js文件中读取环境变量方法 .env文件作用 .env 文件用于定义环境变量，这些变量可以在项目中通过 import.meta.env 进行访问。Vite 会自动加载这些环境变…...

编程新知 2025/7/10 2:41:30

R 语言科研绘图第 55 期 --- 网络图-聚类

在发表科研论文的过程中，科研绘图是必不可少的，一张好看的图形会是文章很大的加分项。为了便于使用，本系列文章介绍的所有绘图都已收录到了 sciRplot 项目中，获取方式： R 语言科研绘图模板 --- sciRplothttps://mp.…...

编程新知 2025/7/10 23:49:09

手机平板能效生态设计指令EU 2023/1670标准解读

手机平板能效生态设计指令EU 2023/1670标准解读以下是针对欧盟《手机和平板电脑生态设计法规》(EU) 2023/1670 的核心解读，综合法规核心要求、最新修正及企业合规要点： 一、法规背景与目标生效与强制时间发布于2023年8月31日（OJ公报&…...

编程新知 2025/7/10 2:39:12

MyBatis中关于缓存的理解

MyBatis缓存 MyBatis系统当中默认定义两级缓存：一级缓存、二级缓存默认情况下，只有一级缓存开启（sqlSession级别的缓存）二级缓存需要手动开启配置，需要局域namespace级别的缓存一级缓存（本地缓存&#…...

编程新知 2025/7/9 15:42:42

面试高频问题

文章目录 🚀 消息队列核心技术揭秘：从入门到秒杀面试官1️⃣ Kafka为何能"吞云吐雾"？性能背后的秘密1.1 顺序写入与零拷贝：性能的双引擎1.2 分区并行：数据的"八车道高速公路"1.3 页缓存与批量处理…...

编程新知 2025/7/9 0:00:40

C# winform教程(二)----checkbox

一、作用提供一个用户选择或者不选的状态，这是一个可以多选的控件。二、属性其实功能大差不差，除了特殊的几个外，与button基本相同，所有说几个独有的 checkbox属性名称内容含义appearance控件外观可以变成按钮形状checkali…...

编程新知 2025/7/8 1:51:53

【Java多线程从青铜到王者】单例设计模式(八)

wait和sleep的区别我们的wait也是提供了一个还有超时时间的版本，sleep也是可以指定时间的，也就是说时间一到就会解除阻塞，继续执行 wait和sleep都能被提前唤醒(虽然时间还没有到也可以提前唤醒)，wait能被notify提前唤醒&#xf…...

编程新知 2025/7/9 15:41:14

spring boot使用HttpServletResponse实现sse后端流式输出消息

1.以前只是看过SSE的相关文章，没有具体实践，这次接入AI大模型使用到了流式输出，涉及到给前端流式返回，所以记录一下。 2.resp要设置为text/event-stream resp.setContentType("text/event-stream"); resp.setCharacter…...

编程新知 2025/7/10 2:35:34

java 局域网 rtsp 取流 WebSocket 推送到前端显示低延迟

众所周知摄像头取流推流显示前端延迟大传统方法是服务器取摄像头的rtsp流然后客户端连服务器中转多了，延迟一定不小。假设相机没有专网公网 1相机自带推流直接推送到云服务器然后客户端拉去 2相机只有rtsp ，边缘服务器拉流推送到云服务器 …...

编程新知 2025/7/6 22:46:35

文章目录

PostgreSQL 向量扩展插件pgvector安装和使用

安装postgresql

pgvector下载和安装

安装错误调试

错误调试1

尝试解决 AP1 ：启动postgresql

错误调试2

尝试解决 AP2 : 使用apt-get install postgresql-server

错误调试3

尝试解决 AP3 ：卸载apt-get 安装

错误调试4

设置环境变量PG_CONFIG

编译成功

使用pgvector

测试例

列出当前数据库中已安装的扩展（extensions）

参考

相关文章：