SELECT *
FROM `map-domrebenok`.`wp_postmeta`
WHERE (
CONVERT( `meta_id`
USING utf8 ) LIKE '%/sites/5/%'
OR CONVERT( `post_id`
USING utf8 ) LIKE '%/sites/5/%'
OR CONVERT( `meta_key`
USING utf8 ) LIKE '%/sites/5/%'
OR CONVERT( `meta_value`
USING utf8 ) LIKE '%/sites/5/%'
)
LIMIT 0 , 30