Postgres-XL-9.5 集群部署测试

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一、部署环境

集群环境如下

CentOS6.6_x86_64

Postgres-XL 9.5

主机名IP角色端口nodename数据目录
pgxlsrv1192.168.1.41GTM6666gtm$PGHOME/data/gtm
Coordinator5301coord1$PGHOME/data/coord1
Coordinator5302coord2$PGHOME/data/coord2
pgxlsrv2192.168.1.42Datanode5401dn1$PGHOME/data/dn1
Datanode5402dn2$PGHOME/data/dn2
pgxlsrv3192.168.1.43Datanode5401dn3$PGHOME/data/dn3
Datanode5402dn4$PGHOME/data/dn4

pgxlsrv1作为gtm与主节点Coordinator协调器

pgxlsrv2,pgxlsrv3 作为数据节点存储数据



二、服务器配置

1、环境变量 (3个节点)

export PGHOME=/home/postgres/pgxl9.5

export LD_LIBRARY_PATH=$PGHOME/lib:$LD_LIBRARY_PATH

export PATH=$PGHOME/bin:$PATH


2、安装依赖软件包 (3个节点)

yum -y install openssh-clients

yum -y install flex bison readline-devel zlib-devel openjade docbook-style-dsssl

yum -y install gcc


3、配置无密钥登录

------- root 用户 -----------------------------------------

--- pgxlsrv1 节点

[root @pgxlsrv1 ~]# ssh-keygen

[root @pgxlsrv1 ~]# ssh-copy-id -i ~/.ssh/id_rsa.pub [email protected]

[root @pgxlsrv1 ~]# ssh-copy-id -i ~/.ssh/id_rsa.pub [email protected]

[root @pgxlsrv1 ~]# ssh-copy-id -i ~/.ssh/id_rsa.pub [email protected]


--- pgxlsrv2 节点

[root @pgxlsrv2 ~]# ssh-keygen

[root @pgxlsrv2 ~]# ssh-copy-id -i ~/.ssh/id_rsa.pub [email protected]

[root @pgxlsrv2 ~]# ssh-copy-id -i ~/.ssh/id_rsa.pub [email protected]

[root @pgxlsrv2 ~]# ssh-copy-id -i ~/.ssh/id_rsa.pub [email protected]


--- pgxlsrv3 节点

[root @pgxlsrv3 ~]# ssh-keygen

[root @pgxlsrv3 ~]# ssh-copy-id -i ~/.ssh/id_rsa.pub [email protected]

[root @pgxlsrv3 ~]# ssh-copy-id -i ~/.ssh/id_rsa.pub [email protected]

[root @pgxlsrv3 ~]# ssh-copy-id -i ~/.ssh/id_rsa.pub [email protected]


-------- 用户 postgres ------------------------------------

--- pgxlsrv1 节点

[postgres @pgxlsrv1 ~]$ ssh-keygen

[postgres @pgxlsrv1 ~]$ ssh-copy-id -i ~/.ssh/id_rsa.pub [email protected]

[postgres @pgxlsrv1 ~]$ ssh-copy-id -i ~/.ssh/id_rsa.pub [email protected]

[postgres @pgxlsrv1 ~]$ ssh-copy-id -i ~/.ssh/id_rsa.pub [email protected]


--- pgxlsrv2 节点

[postgres @pgxlsrv2 ~]$ ssh-keygen

[postgres @pgxlsrv2 ~]$ ssh-copy-id -i ~/.ssh/id_rsa.pub [email protected]

[postgres @pgxlsrv2 ~]$ ssh-copy-id -i ~/.ssh/id_rsa.pub [email protected]

[postgres @pgxlsrv2 ~]$ ssh-copy-id -i ~/.ssh/id_rsa.pub [email protected]


--- pgxlsrv3 节点

[postgres @pgxlsrv3 ~]$ ssh-keygen

[postgres @pgxlsrv3 ~]$ ssh-copy-id -i ~/.ssh/id_rsa.pub [email protected]

[postgres @pgxlsrv3 ~]$ ssh-copy-id -i ~/.ssh/id_rsa.pub [email protected]

[postgres @pgxlsrv3 ~]$ ssh-copy-id -i ~/.ssh/id_rsa.pub [email protected]


三、 Postgres-XL安装

1、在3个节点分别安装postgrex-xl软件

-- pgxlsrv1 节点

[root @pgxlsrv1 ~]# cd /mytmp

[root @pgxlsrv1 mytmp]# tar -xzvf postgres-xl-9.5r1.5.tar.gz

[root @pgxlsrv1 mytmp]# chown -R postgres:postgres postgres-xl-9.5r1.5

[root @pgxlsrv1 mytmp]# su - postgres

[postgres @pgxlsrv1 ~]$ cd /mytmp/postgres-xl-9.5r1.5

[postgres @pgxlsrv1 postgres-xl-9.5r1.5]$ ./configure --prefix=/home/postgres/pgxl9.5

[postgres @pgxlsrv1 postgres-xl-9.5r1.5]$ make

[postgres @pgxlsrv1 postgres-xl-9.5r1.5]$ make install


-- pgxlsrv2 节点

[root @pgxlsrv2 ~]# cd /mytmp

[root @pgxlsrv2 mytmp]# tar -xzvf postgres-xl-9.5r1.5.tar.gz

[root @pgxlsrv2 mytmp]# chown -R postgres:postgres postgres-xl-9.5r1.5

[root @pgxlsrv2 mytmp]# su - postgres

[postgres @pgxlsrv2 ~]$ cd /mytmp/postgres-xl-9.5r1.5

[postgres @pgxlsrv2 postgres-xl-9.5r1.5]$ ./configure --prefix=/home/postgres/pgxl9.5

[postgres @pgxlsrv2 postgres-xl-9.5r1.5]$ make

[postgres @pgxlsrv2 postgres-xl-9.5r1.5]$ make install


-- pgxlsrv3 节点

[root @pgxlsrv3 ~]# cd /mytmp

[root @pgxlsrv3 mytmp]# tar -xzvf postgres-xl-9.5r1.5.tar.gz

[root @pgxlsrv3 mytmp]# chown -R postgres:postgres postgres-xl-9.5r1.5

[root @pgxlsrv3 mytmp]# su - postgres

[postgres @pgxlsrv3 ~]$ cd /mytmp/postgres-xl-9.5r1.5

[postgres @pgxlsrv3 postgres-xl-9.5r1.5]$ ./configure --prefix=/home/postgres/pgxl9.5

[postgres @pgxlsrv3 postgres-xl-9.5r1.5]$ make

[postgres @pgxlsrv3 postgres-xl-9.5r1.5]$ make install


2、创建 gtm、coordinator、datanode 相关目录

-- pgxlsrv1 节点

[postgres @pgxlsrv1 ~]$ cd $PGHOME

[postgres @pgxlsrv1 pgxl9.5]$ mkdir data

[postgres @pgxlsrv1 pgxl9.5]$ cd data

[postgres @pgxlsrv1 data]$ mkdir gtm

[postgres @pgxlsrv1 data]$ mkdir coord1

[postgres @pgxlsrv1 data]$ mkdir coord2


-- pgxlsrv2 节点

[postgres @pgxlsrv2 ~]$ cd $PGHOME

[postgres @pgxlsrv2 pgxl9.5]$ mkdir data

[postgres @pgxlsrv2 pgxl9.5]$ cd data

[postgres @pgxlsrv2 data]$ mkdir dn1

[postgres @pgxlsrv2 data]$ mkdir dn2


-- pgxlsrv3 节点

[postgres @pgxlsrv3 ~]$ cd $PGHOME

[postgres @pgxlsrv3 pgxl9.5]$ mkdir data

[postgres @pgxlsrv3 pgxl9.5]$ cd data

[postgres @pgxlsrv3 data]$ mkdir dn3

[postgres @pgxlsrv3 data]$ mkdir dn4


3、gtm、coordinator 初始化及配置

-- 初始化gtm

[postgres @pgxlsrv1 ~]$ initgtm -Z gtm -D /home/postgres/pgxl9.5/data/gtm


--初始化coord1

[postgres @pgxlsrv1 ~]$ initdb -D /home/postgres/pgxl9.5/data/coord1 --nodename coord1 -E UTF8 --locale=C -U postgres -W


--初始化coord2

[postgres @pgxlsrv1 ~]$ initdb -D /home/postgres/pgxl9.5/data/coord2 --nodename coord2 -E UTF8 --locale=C -U postgres -W


-- 配置gtm

[postgres @pgxlsrv1 ~]$ vi /home/postgres/pgxl9.5/data/gtm/gtm.conf

nodename = ‘gtm‘

listen_addresses = ‘*‘

port =6666

startup = ACT


-- 配置 coord1、coord2

[postgres @pgxlsrv1 ~]$ vi /home/postgres/pgxl9.5/data/coord1/postgresql.conf

# - Connection Settings -

listen_addresses = ‘*‘

port = 5301  #coord2这个端口改为5302

max_connections = 100


# DATA NODES AND CONNECTION POOLING

#----------------------------------

pooler_port = 6701      #coord2这个端口改为6702

max_pool_size = 100


# GTM CONNECTION

#--------------------------

gtm_host = ‘192.168.1.41‘   #即pgxlsrv1,也就是gtm所在的主机地址

gtm_port = 6666    #gtm配置中,gtm端口号配置为6666

pgxc_node_name = ‘coord1‘


------- 配置文件 pg_hba.conf

# "local" is for Unix domain socket connections only

local   all             all                                     trust

# IPv4 local connections:

host    all             all             0.0.0.0/0            trust

# IPv6 local connections:

host    all             all             ::1/128                 trust


4、dn1、dn2、dn3、dn4 初始化及配置

---------- pgxlsrv2 节点 ----------------------------------

--dn1初始化

[postgres @pgxlsrv2 ~]$ initdb -D /home/postgres/pgxl9.5/data/dn1 --nodename dn1 -E UTF8 --locale=C -U postgres -W


--dn2初始化

[postgres @pgxlsrv2 ~]$ initdb -D /home/postgres/pgxl9.5/data/dn2 --nodename dn2 -E UTF8 --locale=C -U postgres -W


----------- pgxlsrv3 节点 ---------------------------------

--dn3初始化

[postgres @pgxlsrv3 ~]$ initdb -D /home/postgres/pgxl9.5/data/dn3 --nodename dn3 -E UTF8 --locale=C -U postgres -W


--dn4初始化

[postgres @pgxlsrv3 ~]$ initdb -D /home/postgres/pgxl9.5/data/dn4 --nodename dn4 -E UTF8 --locale=C -U postgres -W


---------- pgxlsrv2 节点 ---------------------------------

-- dn1 配置

[postgres @pgxlsrv2 ~]$ vi /home/postgres/pgxl9.5/data/dn1/postgresql.conf

CONNECTIONS AND AUTHENTICATION

#------------------------------------

listen_addresses = ‘*‘

port =5401 #dn2,dn3,dn4配置文件分别改为5402、5401、5402

max_connections = 100


# DATA NODES AND CONNECTION POOLING

#----------------------------------------------

pooler_port = 6801 #dn2,dn3,dn4配置文件分别改为6802、6801、6802

#同一台机器要使用不同的端口,如dn1,dn2在同一台机器pgxlsrv2上分别是6801,6802

#dn3,dn4在pgxlsrv3上端口号也是6801,6802。就是同一机器端口号不同即可。

max_pool_size = 100


# GTM CONNECTION

#-----------------------------

gtm_host = ‘192.168.1.41‘ #gtm所在的pgxlsrv1的ip地址

gtm_port = 6666 #gtm端口号

pgxc_node_name = ‘dn1‘  


5、启动Postgres-XL

--启动gtm (pgxlsrv1)

[postgres @pgxlsrv1 ~]$ gtm_ctl start -Z gtm -D /home/postgres/pgxl9.5/data/gtm


--启动datanode (pgxlsrv2)

[postgres @pgxlsrv2 ~]$ pg_ctl start -Z datanode -D /home/postgres/pgxl9.5/data/dn1

[postgres @pgxlsrv2 ~]$ pg_ctl start -Z datanode -D /home/postgres/pgxl9.5/data/dn2


--启动datanode (pgxlsrv3)

[postgres @pgxlsrv3 ~]$ pg_ctl start -Z datanode -D /home/postgres/pgxl9.5/data/dn3

[postgres @pgxlsrv3 ~]$ pg_ctl start -Z datanode -D /home/postgres/pgxl9.5/data/dn4


--启动coordinator (pgxlsrv1)

[postgres @pgxlsrv1 ~]$ pg_ctl start -Z coordinator -D /home/postgres/pgxl9.5/data/coord1

[postgres @pgxlsrv1 ~]$ pg_ctl start -Z coordinator -D /home/postgres/pgxl9.5/data/coord2


6、Postgres-XL集群配置

-- 集群配置 --

--配置coord1节点,以postgres用户下进入psql。coord1配置端口号是5301,直接以psql加端口号进入配置

[[email protected] ~]$ psql -p 5301

psql (PGXL 9.5r1.5, based on PG 9.5.6 (Postgres-XL 9.5r1.5))

Type "help" for help.


postgres=# select * from pgxc_node;


postgres=# alter  node coord1 with (type=coordinator,host=‘192.168.1.41‘, port=5301);

postgres=# create node coord2 with (type=coordinator,host=‘192.168.1.41‘, port=5302);


postgres=# create node dn1 with (type=datanode, host=‘192.168.1.42‘,port=5401,primary,preferred);

postgres=# create node dn2 with (type=datanode, host=‘192.168.1.42‘,port=5402);

postgres=# create node dn3 with (type=datanode, host=‘192.168.1.43‘,port=5401);

postgres=# create node dn4 with (type=datanode, host=‘192.168.1.43‘,port=5402);


postgres=# select pgxc_pool_reload();

postgres=# select * from pgxc_node;


--配置coord2节点,以postgres用户下进入psql。coord2配置端口号是5302,直接以psql加端口号进入配置

[[email protected] ~]$ psql -p 5302

psql (PGXL 9.5r1.5, based on PG 9.5.6 (Postgres-XL 9.5r1.5))

Type "help" for help.


postgres=# select * from pgxc_node;

postgres=# alter  node coord2 with (type=coordinator,host=‘192.168.1.41‘, port=5302);

postgres=# create node coord1 with (type=coordinator,host=‘192.168.1.41‘, port=5301);


postgres=# create node dn1 with (type=datanode, host=‘192.168.1.42‘,port=5401,primary,preferred);

postgres=# create node dn2 with (type=datanode, host=‘192.168.1.42‘,port=5402);

postgres=# create node dn3 with (type=datanode, host=‘192.168.1.43‘,port=5401);

postgres=# create node dn4 with (type=datanode, host=‘192.168.1.43‘,port=5402);


postgres=# select pgxc_pool_reload();

postgres=# select * from pgxc_node;


--  配置数据节点(pgxlsrv2) --

--dn1

[[email protected] ~]$ psql -p 5401

psql (PGXL 9.5r1.5, based on PG 9.5.6 (Postgres-XL 9.5r1.5))

Type "help" for help.


postgres=# select * from pgxc_node;


postgres=# create node coord1 with (type=coordinator,host=‘192.168.1.41‘, port=5301);

postgres=# create node coord2 with (type=coordinator,host=‘192.168.1.41‘, port=5302);


postgres=# alter  node dn1 with (type=datanode, host=‘192.168.1.42‘,port=5401,primary,preferred);

postgres=# create node dn2 with (type=datanode, host=‘192.168.1.42‘,port=5402);

postgres=# create node dn3 with (type=datanode, host=‘192.168.1.43‘,port=5401);

postgres=# create node dn4 with (type=datanode, host=‘192.168.1.43‘,port=5402);


postgres=# select pgxc_pool_reload();

postgres=# select * from pgxc_node;


--dn2

[[email protected] ~]$ psql -p 5402

psql (PGXL 9.5r1.5, based on PG 9.5.6 (Postgres-XL 9.5r1.5))

Type "help" for help.


postgres=# select * from pgxc_node;


postgres=# create node coord1 with (type=coordinator,host=‘192.168.1.41‘, port=5301);

postgres=# create node coord2 with (type=coordinator,host=‘192.168.1.41‘, port=5302);


postgres=# alter  node dn2 with (type=datanode, host=‘192.168.1.42‘,port=5402);

postgres=# create node dn1 with (type=datanode, host=‘192.168.1.42‘,port=5401,primary,preferred);

postgres=# create node dn3 with (type=datanode, host=‘192.168.1.43‘,port=5401);

postgres=# create node dn4 with (type=datanode, host=‘192.168.1.43‘,port=5402);


postgres=# select pgxc_pool_reload();

postgres=# select * from pgxc_node;


--  配置数据节点(pgxlsrv3) --

--dn3

[[email protected] ~]$ psql -p 5401

psql (PGXL 9.5r1.5, based on PG 9.5.6 (Postgres-XL 9.5r1.5))

Type "help" for help.


postgres=# select * from pgxc_node;


postgres=# create node coord1 with (type=coordinator,host=‘192.168.1.41‘, port=5301);

postgres=# create node coord2 with (type=coordinator,host=‘192.168.1.41‘, port=5302);


postgres=# alter  node dn3 with (type=datanode, host=‘192.168.1.43‘,port=5401);

postgres=# create node dn1 with (type=datanode, host=‘192.168.1.42‘,port=5401,primary,preferred);

postgres=# create node dn2 with (type=datanode, host=‘192.168.1.42‘,port=5402);

postgres=# create node dn4 with (type=datanode, host=‘192.168.1.43‘,port=5402);


postgres=# select pgxc_pool_reload();

postgres=# select * from pgxc_node;


--dn4

[[email protected] ~]$ psql -p 5402

psql (PGXL 9.5r1.5, based on PG 9.5.6 (Postgres-XL 9.5r1.5))

Type "help" for help.


postgres=# select * from pgxc_node;


postgres=# create node coord1 with (type=coordinator,host=‘192.168.1.41‘, port=5301);

postgres=# create node coord2 with (type=coordinator,host=‘192.168.1.41‘, port=5302);


postgres=# alter  node dn4 with (type=datanode, host=‘192.168.1.43‘,port=5402);

postgres=# create node dn1 with (type=datanode, host=‘192.168.1.42‘,port=5401,primary,preferred);

postgres=# create node dn2 with (type=datanode, host=‘192.168.1.42‘,port=5402);

postgres=# create node dn3 with (type=datanode, host=‘192.168.1.43‘,port=5401);


postgres=# select pgxc_pool_reload();

postgres=# select * from pgxc_node;


四、验证测试

1、 创建分布模式的测试表并插入数据

[[email protected]]$ psql -p 5301

psql (PGXL 9.5r1.5, based on PG 9.5.6 (Postgres-XL 9.5r1.5))

Type "help" for help.

postgres=#  create table t1(id integer, name varchar(20));

postgres=#  insert into t1 values(1,‘测试1‘);

postgres=#  insert into t1 values(2,‘测试2‘);

postgres=#  insert into t1 values(3,‘测试3‘);

postgres=#  insert into t1 values(4,‘测试4‘);

postgres=#  insert into t1 values(5,‘测试5‘);

postgres=#  insert into t1 values(6,‘测试6‘);

postgres=#  insert into t1 values(7,‘测试7‘);

postgres=#  insert into t1 values(8,‘测试8‘);


-- 插入记录验证 --

-- 在 coord1 和 coord2 上都能查询到所有记录

[[email protected]]$ psql -p 5301

psql (PGXL 9.5r1.5, based on PG 9.5.6 (Postgres-XL 9.5r1.5))

Type "help" for help.

postgres=# select * from t1;

id | name  

----+-------

 5 | 测试5

 6 | 测试6

 8 | 测试8

 3 | 测试3

 4 | 测试4

 7 | 测试7

 1 | 测试1

 2 | 测试2

(8 rows)


[[email protected]]$ psql -p 5302

psql (PGXL 9.5r1.5, based on PG 9.5.6 (Postgres-XL 9.5r1.5))

Type "help" for help.

postgres=# select * from t1;

id | name  

----+-------

 5 | 测试5

 6 | 测试6

 8 | 测试8

 3 | 测试3

 4 | 测试4

 7 | 测试7

 1 | 测试1

 2 | 测试2

(8 rows)


--在数据节点 dn1, dn2, dn3, dn4 分别查询

[[email protected]]$ psql -p 5401

psql (PGXL 9.5r1.5, based on PG 9.5.6 (Postgres-XL 9.5r1.5))

Type "help" for help.

postgres=# select * from t1;

id | name  

----+-------

 5 | 测试5

 6 | 测试6

 8 | 测试8

(3 rows)


[[email protected]]$ psql -p 5402

psql (PGXL 9.5r1.5, based on PG 9.5.6 (Postgres-XL 9.5r1.5))

Type "help" for help.

postgres=# select * from t1;

id | name  

----+-------

(0 rows)


[[email protected]]$ psql -p 5401

psql (PGXL 9.5r1.5, based on PG 9.5.6 (Postgres-XL 9.5r1.5))

Type "help" for help.

postgres=# select * from t1;

id | name  

----+-------

 1 | 测试1

 2 | 测试2

(2 rows)


[[email protected]]$ psql -p 5402

psql (PGXL 9.5r1.5, based on PG 9.5.6 (Postgres-XL 9.5r1.5))

Type "help" for help.

postgres=# select * from t1;

id | name  

----+-------

 3 | 测试3

 4 | 测试4

 7 | 测试7

(3 rows)



2、 创建复制模式的测试表并插入数据

[[email protected]]$ psql -p 5301

psql (PGXL 9.5r1.5, based on PG 9.5.6 (Postgres-XL 9.5r1.5))

Type "help" for help.

postgres=#  create table t2(id integer, name varchar(20)) distribute by replication;

postgres=#  insert into t2 values(1,‘测试1‘);

postgres=#  insert into t2 values(2,‘测试2‘);

postgres=#  insert into t2 values(3,‘测试3‘);

postgres=#  insert into t2 values(4,‘测试4‘);

postgres=#  insert into t2 values(5,‘测试5‘);

postgres=#  insert into t2 values(6,‘测试6‘);

postgres=#  insert into t2 values(7,‘测试7‘);

postgres=#  insert into t2 values(8,‘测试8‘);


-- 插入记录验证 --

-- 在 coord1 和 coord2 以及 dn1、dn2、dn3、dn4 上都能查询到所有记录


-- coord1 --

[[email protected]]$ psql -p 5301

psql (PGXL 9.5r1.5, based on PG 9.5.6 (Postgres-XL 9.5r1.5))

Type "help" for help.

postgres=# select * from t2;

id | name  

----+-------

 1 | 测试1

 2 | 测试2

 3 | 测试3

 4 | 测试4

 5 | 测试5

 6 | 测试6

 7 | 测试7

 8 | 测试8

(8 rows)


-- coord2 --

[[email protected]]$ psql -p 5302

psql (PGXL 9.5r1.5, based on PG 9.5.6 (Postgres-XL 9.5r1.5))

Type "help" for help.

postgres=# select * from t2;

id | name  

----+-------

 1 | 测试1

 2 | 测试2

 3 | 测试3

 4 | 测试4

 5 | 测试5

 6 | 测试6

 7 | 测试7

 8 | 测试8

(8 rows)


-- dn1 --

[[email protected]]$ psql -p 5401

psql (PGXL 9.5r1.5, based on PG 9.5.6 (Postgres-XL 9.5r1.5))

Type "help" for help.

postgres=# select * from t2;

id | name  

----+-------

 1 | 测试1

 2 | 测试2

 3 | 测试3

 4 | 测试4

 5 | 测试5

 6 | 测试6

 7 | 测试7

 8 | 测试8

(8 rows)


-- dn2 --

[[email protected]]$ psql -p 5402

psql (PGXL 9.5r1.5, based on PG 9.5.6 (Postgres-XL 9.5r1.5))

Type "help" for help.

postgres=# select * from t2;

id | name  

----+-------

 1 | 测试1

 2 | 测试2

 3 | 测试3

 4 | 测试4

 5 | 测试5

 6 | 测试6

 7 | 测试7

 8 | 测试8

(8 rows)


-- dn3 --

[[email protected]]$ psql -p 5401

psql (PGXL 9.5r1.5, based on PG 9.5.6 (Postgres-XL 9.5r1.5))

Type "help" for help.

postgres=# select * from t2;

id | name  

----+-------

 1 | 测试1

 2 | 测试2

 3 | 测试3

 4 | 测试4

 5 | 测试5

 6 | 测试6

 7 | 测试7

 8 | 测试8

(8 rows)


-- dn4 --

[[email protected]]$ psql -p 5402

psql (PGXL 9.5r1.5, based on PG 9.5.6 (Postgres-XL 9.5r1.5))

Type "help" for help.

postgres=# select * from t2;

id | name  

----+-------

 1 | 测试1

 2 | 测试2

 3 | 测试3

 4 | 测试4

 5 | 测试5

 6 | 测试6

 7 | 测试7

 8 | 测试8

(8 rows)


----------------------------- 测试完毕 -----------------------------------

本文出自 “独孤九剑” 博客,请务必保留此出处http://130030.blog.51cto.com/120030/1918316

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