Hello All,

New to the list, so maybe an expert has the easy answer to this one...

When I use mysqldump to backup a MySQL 5.7.8 database then import that database into a MariaDB 10.4.8 database, at least one (maybe more) of the imported tables is missing rows. This a WordPress database and the table in question is the wp_options table. I'm only getting 29 rows imported when there should be over 600 (in the original MySQL database).

I'm using the mysqldump and mysql utilities located on the MariaDB server:

mysqldump  Ver 10.17 Distrib 10.4.8-MariaDB, for Linux (x86_64)
mysql  Ver 15.1 Distrib 10.4.8-MariaDB, for Linux (x86_64) using readline 5.1

My steps as performed on the MariaDB server.

1. mysqldump -u username -pPassword -h remote_mysql_server database_name > wp_backup.sql

2. mysql -u username -pPassword -h localhost database_name < wp_backup.sql

When I run mysql (on the local MariaDB server) and import the wp_backup.sql to the remote_mysql_server everything works fine and all rows are importing into a test database out there:

mysql -u username -pPassword -h remote_mysql_server database_name < wp_backup.sql

So the above works

I know I'm probably missing something simple but just don't know... they both seem to use the same InnoDB engine. I did notice the Db character set is different between the databases though (highlighted in blue below).

Maybe do I need to upgrade to MariaDB  10.4.14

Any help would be greatly appreciated.....?

Details about each server listed below:

MySQL

Server version:        5.7.28-log Source distribution
Protocol version:    10
Server characterset:    latin1
Db     characterset:    utf8
Client characterset:    utf8
Conn.  characterset:    utf8

*************************** 1. row ***************************
      Engine: InnoDB
     Support: DEFAULT
     Comment: Supports transactions, row-level locking, and foreign keys
Transactions: YES
          XA: YES
  Savepoints: YES


MariaDB

Server version:        5.5.5-10.4.8-MariaDB MariaDB Server
Protocol version:    10
Server characterset:    latin1
Db     characterset:    latin1
Client characterset:    utf8
Conn.  characterset:    utf8

*************************** 7. row ***************************
      Engine: InnoDB
     Support: DEFAULT
     Comment: Supports transactions, row-level locking, foreign keys and encryption for tables
Transactions: YES
          XA: YES
  Savepoints: YES

-- 
Elliot Holden
‪(404)884-8593‬
elliot@elliotmywebguy.com
https://www.ElliotMyWebGuy.com