Import the data in MariaDB into columnstore

1 stay columnStore Empty meter built in

# View the table definition on the source side

show create table baidd.t1;

CREATE TABLE `t1` (

  `id` int(11) NOT NULL,

  `name` varchar(30) COLLATE utf8mb4_bin NOT NULL,

  `name3` varchar(30) COLLATE utf8mb4_bin DEFAULT NULL,

  PRIMARY KEY (`id`,`name`)

) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_bin

# Change the definition in the following table at the target end

# Change the storage engine to columnstore, Remove all indexes （ Include primary key ）, Sort character sets and related information .

After the reform ：

CREATE TABLE `t1` (

  `id` INT(11) NOT NULL,

  `name` VARCHAR(30)  NOT NULL,

  `name3` VARCHAR(30)  DEFAULT NULL

) ENGINE=columnstore

2 Leading data

# Export on the source side

select * from baidd.t1 into outfile '/tmp/t1.txt'   FIELDS TERMINATED BY ',' OPTIONALLY ENCLOSED BY '"'  LINES TERMINATED BY '\n';

# Copy the file to the target side

# stay columnStore Import in

grammar ：

cpimport dbName tblName [ Load the file ]

Example ：

cpimport baidd t1 /opt/t1.txt -E   '"'  -s ','

#-E Is the delimiter of the string

#-s Is the end character of the field

After importing, you will be prompted as follows ：

2022-04-15 19:37:43 (7959) INFO : For table baidd.t1: 3 rows processed and 3 rows inserted.
2022-04-15 19:37:44 (7959) INFO : Bulk load completed, total run time : 1.08667 seconds