问题
写sparksql语句时出现的错误,他说该字段不在表中
Exception in thread "main" org.apache.spark.sql.AnalysisException: cannot resolve '`Class`' given input columns: [Cno, Cnam, Tno]; line 1 pos 28;
'Project [*]
+- 'Filter (('Class = 95031) || ('Ssex = 女))
+- SubqueryAlias student
+- Relation[Cno#11,Cnam#12,Tno#13] JDBCRelation(Course) [numPartitions=1]
原因:
我用同一个链接数据库返回的对象创建了几个视图,所以报错
解决措施