查找一下这个文件，pg_bulkload.control，然后放到这个路径下面/opt/pgbinary/pgsql/share/postgresql/extension/,在执行create extension pg_bulkload，看行不行

pg服务是源码编译 插件是rpm安装 这两者不一致

试试插件源码编译下

当前pg_bulkload最新版本3.1.19支持PostgreSQL 9.6/10/11/12/13/14。
建议通过源码编译安装最新版本：

[postgres@pg1 ~]$ ll pg_bulkload-master.zip
-rwxr-xr-x.  1 root     root      531031 Feb 17 17:19 pg_bulkload-master.zip
[postgres@pg1 ~]$ 
[postgres@pg1 ~]$ unzip pg_bulkload-master.zip 
Archive:  pg_bulkload-master.zip
300d058135e482106672aecec674bee2a52d5e2e
   creating: pg_bulkload-master/
......
  inflating: pg_bulkload-master/util/uninstall_pg_timestamp.sql  
[postgres@pg1 ~]$ cd pg_bulkload-master/
[postgres@pg1 pg_bulkload-master]$ make
Makefile:33: warning: overriding recipe for target `check'
......
make[1]: Leaving directory `/home/postgres/pg_bulkload-master/util'
[postgres@pg1 pg_bulkload-master]$ 
[postgres@pg1 pg_bulkload-master]$ make install
Makefile:33: warning: overriding recipe for target `check'
......
make[1]: Leaving directory `/home/postgres/pg_bulkload-master/util'
[postgres@pg1 pg_bulkload-master]$ 
[postgres@pg1 pg_bulkload-master]$ 
[postgres@pg1 pg_bulkload-master]$ psql 
psql (14.1)
Type "help" for help.

postgres=# create extension pg_bulkload ;
CREATE EXTENSION
postgres=# 
复制

提供的两个版本信息都对，从RPM包名也可以看出是PG10为el6编译的包。
找到了这两个的RPM：
https://download.postgresql.org/pub/repos/yum/10/redhat/rhel-6-x86_64/
pg_bulkload10-3.1.16-1.rhel6.x86_64.rpm
pg_bulkload10-client-3.1.16-1.rhel6.x86_64.rpm
解压后，可以发现，pg_bulkload10的安装路径为：/usr/pgsql-10/share/extension/
即，直接安装两个PRM后，文件pg_bulkload.control将位于：/usr/pgsql-10/share/extension/pg_bulkload.control
解决办法：可以将RPM解压，文件复制到PG实际的安装路径下：/opt/pgbinary/pgsql/share/postgresql/extension

[postgres@test_dan pg_bulkload-VERSION3_1_16]$ make
make[1]: Entering directory `/soft/pg-soft/pg_bulkload-VERSION3_1_16/bin'
gcc -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Wendif-labels -Wmissing-format-attribute -Wformat-security -fno-strict-aliasing -fwrapv -g -O2 -DMAP_HUGETLB=0x40000 pg_bulkload.o recovery.o pgut/pgut.o pgut/pgut-fe.o pgut/pgut-list.o -L/opt/pgbinary/pgsql/lib -L/opt/local/Current/lib -Wl,--as-needed -Wl,-rpath,'/opt/pgbinary/pgsql/lib',--enable-new-dtags -Wl,--build-id -L/opt/pgbinary/pgsql/lib -lpq -lpgcommon -lpgport -lpam -lssl -lcrypto -lgssapi_krb5 -lz -ledit -lrt -lcrypt -ldl -lm -o pg_bulkload
/usr/bin/ld: cannot find -lpam
collect2: ld 返回 1
make[1]: *** [pg_bulkload] 错误 1
make[1]: Leaving directory `/soft/pg-soft/pg_bulkload-VERSION3_1_16/bin'
make: *** [all] 错误 2
[postgres@test_dan pg_bulkload-VERSION3_1_16]$ cd ../

我是源码编译没通过，才下载的rpm包，请问这个错误是啥意思