将MySQL的表数据全量导入clichhouse库中

一、环境

• tidb06 mysql5.7.32
• tidb05 clickhouse20.8.3.18

二、创建测试库表写入测试数据

tidb06库创建复制账户:

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1 2	GRANT SELECT , REPLICATION SLAVE, REPLICATION CLIENT ON *.* TO 'click_rep' @ '172.16.0.246' identified by 'jwts996' ;flush privileges ; Query OK, 0 rows affected, 1 warning (0.00 sec)

tidb06库创建测试库表test01.tb2并且写入测试数据：

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CREATE TABLE `tb2` ( `id` int (8) NOT NULL AUTO_INCREMENT,  `username` varchar (20) COLLATE utf8_unicode_ci NOT NULL , ` password ` varchar (20) COLLATE utf8_unicode_ci NOT NULL ,  `create_time` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间' , PRIMARY KEY (`id`) #主键ID ) ENGINE=innodb AUTO_INCREMENT=0 DEFAULT CHARSET=utf8 COLLATE =utf8_unicode_ci;   INSERT INTO tb2(username, password ,create_time) values ( 'tomcat' , 'xiaohuahua' ,now()); INSERT INTO tb2(username, password ,create_time) values ( 'java' , 'xiaohuahua' ,now()); root@tidb06 14:01:  [test01]> select * from tb2; + ----+----------+------------+---------------------+ | id | username | password   | create_time         | + ----+----------+------------+---------------------+ |  1 | tomcat   | xiaohuahua | 2021-07-21 14:01:50 | |  2 | java     | xiaohuahua | 2021-07-21 14:01:59 | + ----+----------+------------+---------------------+ 2 rows in set (0.00 sec)

clickhouse库的建表创建方法:

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1	CREATE TABLE tb2 ENGINE = MergeTree PARTITION BY toYYYYMM(create_time) ORDER BY create_time AS SELECT * FROM mysql( '172.16.0.247:3306' , 'test01' , 'tb2' , 'click_rep' , 'jwts996' );

提示:clichhouse表中要求必须至少包含一个时间字段

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tidb05 :) CREATE TABLE tb2 ENGINE = MergeTree PARTITION BY toYYYYMM(create_time) ORDER BY create_time AS SELECT * FROM mysql( '172.16.0.247:3306' , 'test01' , 'tb2' , 'click_rep' , 'jwts996' );   CREATE TABLE tb2 ENGINE = MergeTree PARTITION BY toYYYYMM(create_time) ORDER BY create_time AS SELECT * FROM mysql( '172.16.0.247:3306' , 'test01' , 'tb2' , 'click_rep' , 'jwts996' )   Ok.   0 rows in set . Elapsed: 0.014 sec.    tidb05 :) select * from tb2;   SELECT * FROM tb2   ┌─id─┬─username─┬─ password ───┬─────────create_time─┐ │  1 │ tomcat   │ xiaohuahua │ 2021-07-21 14:01:50 │ │  2 │ java     │ xiaohuahua │ 2021-07-21 14:01:59 │ └────┴──────────┴────────────┴─────────────────────┘   2 rows in set . Elapsed: 0.002 sec.

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原文链接：https://blog.51cto.com/wujianwei/3157528