PREHOOK: query: -- This is to test the union->selectstar->filesink optimization -- Union of 2 subqueries is performed (one of which is a map-only query, and the -- other one contains a nested union where also contains map only sub-queries), -- followed by select star and a file sink. -- There is no need for the union optimization, since the whole query can be performed -- in a single map-only job -- The final file format is different from the input and intermediate file format. -- It does not matter, whether the output is merged or not. In this case, merging is turned -- on -- INCLUDE_HADOOP_MAJOR_VERSIONS(0.23) -- Since this test creates sub-directories for the output table outputTbl1, it might be easier -- to run the test only on hadoop 23 create table inputTbl1(key string, val string) stored as textfile PREHOOK: type: CREATETABLE PREHOOK: Output: database:default PREHOOK: Output: default@inputTbl1 POSTHOOK: query: -- This is to test the union->selectstar->filesink optimization -- Union of 2 subqueries is performed (one of which is a map-only query, and the -- other one contains a nested union where also contains map only sub-queries), -- followed by select star and a file sink. -- There is no need for the union optimization, since the whole query can be performed -- in a single map-only job -- The final file format is different from the input and intermediate file format. -- It does not matter, whether the output is merged or not. In this case, merging is turned -- on -- INCLUDE_HADOOP_MAJOR_VERSIONS(0.23) -- Since this test creates sub-directories for the output table outputTbl1, it might be easier -- to run the test only on hadoop 23 create table inputTbl1(key string, val string) stored as textfile POSTHOOK: type: CREATETABLE POSTHOOK: Output: database:default POSTHOOK: Output: default@inputTbl1 PREHOOK: query: create table outputTbl1(key string, values bigint) stored as rcfile PREHOOK: type: CREATETABLE PREHOOK: Output: database:default PREHOOK: Output: default@outputTbl1 POSTHOOK: query: create table outputTbl1(key string, values bigint) stored as rcfile POSTHOOK: type: CREATETABLE POSTHOOK: Output: database:default POSTHOOK: Output: default@outputTbl1 PREHOOK: query: load data local inpath '../../data/files/T1.txt' into table inputTbl1 PREHOOK: type: LOAD #### A masked pattern was here #### PREHOOK: Output: default@inputtbl1 POSTHOOK: query: load data local inpath '../../data/files/T1.txt' into table inputTbl1 POSTHOOK: type: LOAD #### A masked pattern was here #### POSTHOOK: Output: default@inputtbl1 PREHOOK: query: explain insert overwrite table outputTbl1 SELECT * FROM ( select key, 1 as values from inputTbl1 union all select * FROM ( SELECT key, 2 values from inputTbl1 UNION ALL SELECT key, 3 as values from inputTbl1 ) a )b PREHOOK: type: QUERY POSTHOOK: query: explain insert overwrite table outputTbl1 SELECT * FROM ( select key, 1 as values from inputTbl1 union all select * FROM ( SELECT key, 2 values from inputTbl1 UNION ALL SELECT key, 3 as values from inputTbl1 ) a )b POSTHOOK: type: QUERY STAGE DEPENDENCIES: Stage-1 is a root stage Stage-6 depends on stages: Stage-1 , consists of Stage-3, Stage-2, Stage-4 Stage-3 Stage-0 depends on stages: Stage-3, Stage-2, Stage-5 Stage-2 Stage-4 Stage-5 depends on stages: Stage-4 STAGE PLANS: Stage: Stage-1 Map Reduce Map Operator Tree: TableScan alias: inputtbl1 Statistics: Num rows: 0 Data size: 30 Basic stats: PARTIAL Column stats: NONE Select Operator expressions: key (type: string), 1 (type: int) outputColumnNames: _col0, _col1 Statistics: Num rows: 0 Data size: 30 Basic stats: PARTIAL Column stats: NONE Union Statistics: Num rows: 0 Data size: 90 Basic stats: PARTIAL Column stats: NONE Select Operator expressions: _col0 (type: string), UDFToLong(_col1) (type: bigint) outputColumnNames: _col0, _col1 Statistics: Num rows: 0 Data size: 90 Basic stats: PARTIAL Column stats: NONE File Output Operator compressed: false Statistics: Num rows: 0 Data size: 90 Basic stats: PARTIAL Column stats: NONE table: input format: org.apache.hadoop.hive.ql.io.RCFileInputFormat output format: org.apache.hadoop.hive.ql.io.RCFileOutputFormat serde: org.apache.hadoop.hive.serde2.columnar.ColumnarSerDe name: default.outputtbl1 TableScan alias: inputtbl1 Statistics: Num rows: 0 Data size: 30 Basic stats: PARTIAL Column stats: NONE Select Operator expressions: key (type: string), 2 (type: int) outputColumnNames: _col0, _col1 Statistics: Num rows: 0 Data size: 30 Basic stats: PARTIAL Column stats: NONE Union Statistics: Num rows: 0 Data size: 90 Basic stats: PARTIAL Column stats: NONE Select Operator expressions: _col0 (type: string), UDFToLong(_col1) (type: bigint) outputColumnNames: _col0, _col1 Statistics: Num rows: 0 Data size: 90 Basic stats: PARTIAL Column stats: NONE File Output Operator compressed: false Statistics: Num rows: 0 Data size: 90 Basic stats: PARTIAL Column stats: NONE table: input format: org.apache.hadoop.hive.ql.io.RCFileInputFormat output format: org.apache.hadoop.hive.ql.io.RCFileOutputFormat serde: org.apache.hadoop.hive.serde2.columnar.ColumnarSerDe name: default.outputtbl1 TableScan alias: inputtbl1 Statistics: Num rows: 0 Data size: 30 Basic stats: PARTIAL Column stats: NONE Select Operator expressions: key (type: string), 3 (type: int) outputColumnNames: _col0, _col1 Statistics: Num rows: 0 Data size: 30 Basic stats: PARTIAL Column stats: NONE Union Statistics: Num rows: 0 Data size: 90 Basic stats: PARTIAL Column stats: NONE Select Operator expressions: _col0 (type: string), UDFToLong(_col1) (type: bigint) outputColumnNames: _col0, _col1 Statistics: Num rows: 0 Data size: 90 Basic stats: PARTIAL Column stats: NONE File Output Operator compressed: false Statistics: Num rows: 0 Data size: 90 Basic stats: PARTIAL Column stats: NONE table: input format: org.apache.hadoop.hive.ql.io.RCFileInputFormat output format: org.apache.hadoop.hive.ql.io.RCFileOutputFormat serde: org.apache.hadoop.hive.serde2.columnar.ColumnarSerDe name: default.outputtbl1 Stage: Stage-6 Conditional Operator Stage: Stage-3 Move Operator files: hdfs directory: true #### A masked pattern was here #### Stage: Stage-0 Move Operator tables: replace: true table: input format: org.apache.hadoop.hive.ql.io.RCFileInputFormat output format: org.apache.hadoop.hive.ql.io.RCFileOutputFormat serde: org.apache.hadoop.hive.serde2.columnar.ColumnarSerDe name: default.outputtbl1 Stage: Stage-2 Merge File Operator Map Operator Tree: RCFile Merge Operator merge level: block input format: org.apache.hadoop.hive.ql.io.RCFileInputFormat Stage: Stage-4 Merge File Operator Map Operator Tree: RCFile Merge Operator merge level: block input format: org.apache.hadoop.hive.ql.io.RCFileInputFormat Stage: Stage-5 Move Operator files: hdfs directory: true #### A masked pattern was here #### PREHOOK: query: insert overwrite table outputTbl1 SELECT * FROM ( select key, 1 as values from inputTbl1 union all select * FROM ( SELECT key, 2 as values from inputTbl1 UNION ALL SELECT key, 3 as values from inputTbl1 ) a )b PREHOOK: type: QUERY PREHOOK: Input: default@inputtbl1 PREHOOK: Output: default@outputtbl1 POSTHOOK: query: insert overwrite table outputTbl1 SELECT * FROM ( select key, 1 as values from inputTbl1 union all select * FROM ( SELECT key, 2 as values from inputTbl1 UNION ALL SELECT key, 3 as values from inputTbl1 ) a )b POSTHOOK: type: QUERY POSTHOOK: Input: default@inputtbl1 POSTHOOK: Output: default@outputtbl1 POSTHOOK: Lineage: outputtbl1.key EXPRESSION [(inputtbl1)inputtbl1.FieldSchema(name:key, type:string, comment:null), (inputtbl1)inputtbl1.FieldSchema(name:key, type:string, comment:null), (inputtbl1)inputtbl1.FieldSchema(name:key, type:string, comment:null), ] POSTHOOK: Lineage: outputtbl1.values EXPRESSION [] PREHOOK: query: desc formatted outputTbl1 PREHOOK: type: DESCTABLE PREHOOK: Input: default@outputtbl1 POSTHOOK: query: desc formatted outputTbl1 POSTHOOK: type: DESCTABLE POSTHOOK: Input: default@outputtbl1 # col_name data_type comment key string values bigint # Detailed Table Information Database: default #### A masked pattern was here #### Protect Mode: None Retention: 0 #### A masked pattern was here #### Table Type: MANAGED_TABLE Table Parameters: COLUMN_STATS_ACCURATE false numFiles 1 numRows -1 rawDataSize -1 totalSize 115 #### A masked pattern was here #### # Storage Information SerDe Library: org.apache.hadoop.hive.serde2.columnar.ColumnarSerDe InputFormat: org.apache.hadoop.hive.ql.io.RCFileInputFormat OutputFormat: org.apache.hadoop.hive.ql.io.RCFileOutputFormat Compressed: No Num Buckets: -1 Bucket Columns: [] Sort Columns: [] Storage Desc Params: serialization.format 1 PREHOOK: query: select * from outputTbl1 order by key, values PREHOOK: type: QUERY PREHOOK: Input: default@outputtbl1 #### A masked pattern was here #### POSTHOOK: query: select * from outputTbl1 order by key, values POSTHOOK: type: QUERY POSTHOOK: Input: default@outputtbl1 #### A masked pattern was here #### 1 1 1 2 1 3 2 1 2 2 2 3 3 1 3 2 3 3 7 1 7 2 7 3 8 1 8 1 8 2 8 2 8 3 8 3