Caused by: java.lang.RuntimeException: Ambigous Column Names
at org.apache.hadoop.hive.ql.parse.RowResolver.add(RowResolver.java:381)
at org.apache.hadoop.hive.ql.parse.RowResolver.add(RowResolver.java:400)
at org.apache.hadoop.hive.ql.parse.SemanticAnalyzer$OptiqBasedPlanner.genOBLogicalPlan(SemanticAnalyzer.java:13366)
at org.apache.hadoop.hive.ql.parse.SemanticAnalyzer$OptiqBasedPlanner.genLogicalPlan(SemanticAnalyzer.java:13912)
at org.apache.hadoop.hive.ql.parse.SemanticAnalyzer$OptiqBasedPlanner.apply(SemanticAnalyzer.java:12204)
at org.apache.hadoop.hive.ql.parse.SemanticAnalyzer$OptiqBasedPlanner.apply(SemanticAnalyzer.java:12154)
at net.hydromatic.optiq.tools.Frameworks$1.apply(Frameworks.java:110)
at net.hydromatic.optiq.prepare.OptiqPrepareImpl.perform(OptiqPrepareImpl.java:613)
at net.hydromatic.optiq.tools.Frameworks.withPrepare(Frameworks.java:143)