For some reasons I am getting the following error when executing the below query:
(What I am trying to achieve is to sync and merge two left-joined table to into one
You have an error in your SQL syntax; check the manual that
corresponds to your MySQL server version for the right syntax to use
near 'ENGINE=FEDERATED' at line 35
CREATE TABLE users AS (
SELECT
ID, user_email, user_registered,
first_name.meta_value as first_name,
last_name.meta_value as last_name,
telephone.meta_value as telephone,
country.meta_value as country,
company.meta_value as company,
address.meta_value as address,
city.meta_value as city,
professional_title.meta_value as professional_title,
state.meta_value as state,
areas_of_interest.meta_value as areas_of_interest
FROM wp_users
LEFT JOIN wp_usermeta AS first_name ON first_name.user_id=ID
AND first_name.meta_key='first_name'
LEFT JOIN wp_usermeta AS last_name ON last_name.user_id=ID
AND last_name.meta_key='last_name'
LEFT JOIN wp_usermeta AS telephone ON telephone.user_id=ID
AND telephone.meta_key='telephone'
LEFT JOIN wp_usermeta AS country ON country.user_id=ID
AND country.meta_key='country'
LEFT JOIN wp_usermeta AS company ON company.user_id=ID
AND company.meta_key='company'
LEFT JOIN wp_usermeta AS address ON address.user_id=ID
AND address.meta_key='address'
LEFT JOIN wp_usermeta AS city ON city.user_id=ID
AND city.meta_key='city'
LEFT JOIN wp_usermeta AS professional_title ON professional_title.user_id=ID
AND professional_title.meta_key='professional_title'
LEFT JOIN wp_usermeta AS state ON state.user_id=ID
AND state.meta_key='state'
LEFT JOIN wp_usermeta AS areas_of_interest ON areas_of_interest.user_id=ID
AND areas_of_interest.meta_key='areas_of_interest'
) ENGINE=FEDERATED DEFAULT CHARSET=latin1 CONNECTION 'mysql://*********';
Note: FEDERATED Engine is on and working on other non-joined table.
Best Answer
To define a FEDERATED table the field definition on local table much match field types on remote table. You are creating a brand new table by joining existing tables. I don't think this is legal.
http://dev.mysql.com/doc/refman/5.5/en/federated-description.html