根据“apachesqoop食谱”,通过使用查询导入,sqoop不能使用数据库目录来获取元数据。那么sqoop如何获取查询选项中提到的表(cities和normcities)的元数据呢?如: --query "SELECT cities.city AS first_city normcities.city AS second_city FROM cities LEFT JOIN normcities USING(id)"
--query "SELECT cities.city AS first_city normcities.city AS second_city FROM cities LEFT JOIN normcities USING(id)"
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