Database, Data Engineering, Dbms, Data Modeling, Data Management.
`demo`.`dictionary_tbl` ( `user_id` varchar(50) NOT NULL, `aid` BIGINT NOT NULL AUTO_INCREMENT ) ENGINE=OLAP UNIQUE KEY(`user_id`) DISTRIBUTED BY HASH(`user_id`) BUCKETS 32 PROPERTIES ( "replication_allocation" = "tag.location.default: 3" ); Load the existing user_id into the dictionary table, and