將MySQL的表數(shù)據(jù)全量導(dǎo)入clichhouse庫中
一、環(huán)境
- tidb06 mysql5.7.32
- tidb05 clickhouse20.8.3.18
二、創(chuàng)建測試庫表寫入測試數(shù)據(jù)
tidb06庫創(chuàng)建復(fù)制賬戶:
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庫創(chuàng)建測試庫表test01.tb2并且寫入測試數(shù)據(jù):
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 '創(chuàng)建時間', PRIMARY KEY (`id`) #主鍵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庫的建表創(chuàng)建方法:
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表中要求必須至少包含一個時間字段
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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