mysqldump 導出提示Couldn't execute SELECT COLUMN_NAME...

mysqldump命令：html 　　導出數據庫：mysqldump -h ip -u root -p dbname > db.sql;mysql 　　導出數據庫中的某個表：mysqldump -h ip -u root -p dbname tablename > tablename.sql;sql 錯誤提示：數據庫 　　mysqldump: Couldn't execute 'SELECT CO

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