PREHOOK: query: select /*+ mapjoin(b) */ * from src a join src b on (a.key=b.key) PREHOOK: type: QUERY PREHOOK: Input: default@src PREHOOK: Output: file:/data/users/nzhang/work/876/apache-hive/build/ql/tmp/1224835023/10000 POSTHOOK: query: select /*+ mapjoin(b) */ * from src a join src b on (a.key=b.key) POSTHOOK: type: QUERY POSTHOOK: Input: default@src POSTHOOK: Output: file:/data/users/nzhang/work/876/apache-hive/build/ql/tmp/1224835023/10000