Before you query this table, set the configuration variable innodb_ft_aux_table to the name (including the database name) of the table that contains the FULLTEXT index, for example test/articles. (书写表名时,需要添加数据库名称)
innodb_ft_aux_table:指定包含FULLTEXT索引的InnoDB表的的名称。该变量在运行时设置用于诊断目的。设置该值后INNODB_FT_INDEX_TABLE, INNODB_FT_INDEX_CACHE, INNODB_FT_CONFIG,INNODB_FT_DELETED和INNODB_FT_BEING_DELETED表将被填充与innodb_ft_aux_table指定的表关联的搜索索引相关信息。