PREHOOK: query: -- SORT_QUERY_RESULTS -- Disable CBO here, because it messes with the cases specifically crafted for the optimizer. -- Instead, we could improve the optimizer to recognize more cases, e.g. filter before join. explain extended select key from src where false PREHOOK: type: QUERY POSTHOOK: query: -- SORT_QUERY_RESULTS -- Disable CBO here, because it messes with the cases specifically crafted for the optimizer. -- Instead, we could improve the optimizer to recognize more cases, e.g. filter before join. explain extended select key from src where false POSTHOOK: type: QUERY ABSTRACT SYNTAX TREE: TOK_QUERY TOK_FROM TOK_TABREF TOK_TABNAME src TOK_INSERT TOK_DESTINATION TOK_DIR TOK_TMP_FILE TOK_SELECT TOK_SELEXPR TOK_TABLE_OR_COL key TOK_WHERE false STAGE DEPENDENCIES: Stage-1 is a root stage Stage-0 depends on stages: Stage-1 STAGE PLANS: Stage: Stage-1 Map Reduce Map Operator Tree: TableScan alias: src Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE GatherStats: false Filter Operator isSamplingPred: false predicate: false (type: boolean) Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE Select Operator expressions: key (type: string) outputColumnNames: _col0 Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE File Output Operator compressed: false GlobalTableId: 0 #### A masked pattern was here #### NumFilesPerFileSink: 1 Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE #### A masked pattern was here #### table: input format: org.apache.hadoop.mapred.TextInputFormat output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat properties: columns _col0 columns.types string escape.delim \ hive.serialization.extend.nesting.levels true serialization.format 1 serialization.lib org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe TotalFiles: 1 GatherStats: false MultiFileSpray: false Path -> Alias: -mr-10002default.src{} [src] Path -> Partition: -mr-10002default.src{} Partition input format: org.apache.hadoop.hive.ql.io.OneNullRowInputFormat output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat properties: COLUMN_STATS_ACCURATE true bucket_count -1 columns key,value columns.comments 'default','default' columns.types string:string #### A masked pattern was here #### name default.src numFiles 1 numRows 500 rawDataSize 5312 serialization.ddl struct src { string key, string value} serialization.format 1 serialization.lib org.apache.hadoop.hive.serde2.NullStructSerDe totalSize 5812 #### A masked pattern was here #### serde: org.apache.hadoop.hive.serde2.NullStructSerDe input format: org.apache.hadoop.mapred.TextInputFormat output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat properties: COLUMN_STATS_ACCURATE true bucket_count -1 columns key,value columns.comments 'default','default' columns.types string:string #### A masked pattern was here #### name default.src numFiles 1 numRows 500 rawDataSize 5312 serialization.ddl struct src { string key, string value} serialization.format 1 serialization.lib org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe totalSize 5812 #### A masked pattern was here #### serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe name: default.src name: default.src Truncated Path -> Alias: -mr-10002default.src{} [src] Stage: Stage-0 Fetch Operator limit: -1 Processor Tree: ListSink PREHOOK: query: select key from src where false PREHOOK: type: QUERY PREHOOK: Input: default@src #### A masked pattern was here #### POSTHOOK: query: select key from src where false POSTHOOK: type: QUERY POSTHOOK: Input: default@src #### A masked pattern was here #### PREHOOK: query: explain extended select count(key) from srcpart where 1=2 group by key PREHOOK: type: QUERY POSTHOOK: query: explain extended select count(key) from srcpart where 1=2 group by key POSTHOOK: type: QUERY ABSTRACT SYNTAX TREE: TOK_QUERY TOK_FROM TOK_TABREF TOK_TABNAME srcpart TOK_INSERT TOK_DESTINATION TOK_DIR TOK_TMP_FILE TOK_SELECT TOK_SELEXPR TOK_FUNCTION count TOK_TABLE_OR_COL key TOK_WHERE = 1 2 TOK_GROUPBY TOK_TABLE_OR_COL key STAGE DEPENDENCIES: Stage-1 is a root stage Stage-0 depends on stages: Stage-1 STAGE PLANS: Stage: Stage-1 Map Reduce Needs Tagging: false Reduce Operator Tree: Group By Operator aggregations: count(VALUE._col0) keys: KEY._col0 (type: string) mode: mergepartial outputColumnNames: _col0, _col1 Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE Select Operator expressions: _col1 (type: bigint) outputColumnNames: _col0 Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE File Output Operator compressed: false GlobalTableId: 0 #### A masked pattern was here #### NumFilesPerFileSink: 1 Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE #### A masked pattern was here #### table: input format: org.apache.hadoop.mapred.TextInputFormat output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat properties: columns _col0 columns.types bigint escape.delim \ hive.serialization.extend.nesting.levels true serialization.format 1 serialization.lib org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe TotalFiles: 1 GatherStats: false MultiFileSpray: false Stage: Stage-0 Fetch Operator limit: -1 Processor Tree: ListSink PREHOOK: query: select count(key) from srcpart where 1=2 group by key PREHOOK: type: QUERY PREHOOK: Input: default@srcpart #### A masked pattern was here #### POSTHOOK: query: select count(key) from srcpart where 1=2 group by key POSTHOOK: type: QUERY POSTHOOK: Input: default@srcpart #### A masked pattern was here #### PREHOOK: query: explain extended select * from (select key from src where false) a left outer join (select key from srcpart limit 0) b on a.key=b.key PREHOOK: type: QUERY POSTHOOK: query: explain extended select * from (select key from src where false) a left outer join (select key from srcpart limit 0) b on a.key=b.key POSTHOOK: type: QUERY ABSTRACT SYNTAX TREE: TOK_QUERY TOK_FROM TOK_LEFTOUTERJOIN TOK_SUBQUERY TOK_QUERY TOK_FROM TOK_TABREF TOK_TABNAME src TOK_INSERT TOK_DESTINATION TOK_DIR TOK_TMP_FILE TOK_SELECT TOK_SELEXPR TOK_TABLE_OR_COL key TOK_WHERE false a TOK_SUBQUERY TOK_QUERY TOK_FROM TOK_TABREF TOK_TABNAME srcpart TOK_INSERT TOK_DESTINATION TOK_DIR TOK_TMP_FILE TOK_SELECT TOK_SELEXPR TOK_TABLE_OR_COL key TOK_LIMIT 0 b = . TOK_TABLE_OR_COL a key . TOK_TABLE_OR_COL b key TOK_INSERT TOK_DESTINATION TOK_DIR TOK_TMP_FILE TOK_SELECT TOK_SELEXPR TOK_ALLCOLREF STAGE DEPENDENCIES: Stage-2 is a root stage Stage-1 depends on stages: Stage-2 Stage-0 depends on stages: Stage-1 STAGE PLANS: Stage: Stage-2 Map Reduce Map Operator Tree: TableScan alias: srcpart Statistics: Num rows: 2000 Data size: 21248 Basic stats: COMPLETE Column stats: NONE GatherStats: false Select Operator expressions: key (type: string) outputColumnNames: _col0 Statistics: Num rows: 2000 Data size: 21248 Basic stats: COMPLETE Column stats: NONE Limit Number of rows: 0 Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE Reduce Output Operator sort order: Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE tag: -1 value expressions: _col0 (type: string) auto parallelism: false Path -> Alias: -mr-10004default.srcpart{ds=2008-04-08, hr=11} [b:srcpart] -mr-10005default.srcpart{ds=2008-04-08, hr=12} [b:srcpart] -mr-10006default.srcpart{ds=2008-04-09, hr=11} [b:srcpart] -mr-10007default.srcpart{ds=2008-04-09, hr=12} [b:srcpart] Path -> Partition: -mr-10004default.srcpart{ds=2008-04-08, hr=11} Partition input format: org.apache.hadoop.hive.ql.io.OneNullRowInputFormat output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat partition values: ds 2008-04-08 hr 11 properties: COLUMN_STATS_ACCURATE true bucket_count -1 columns key,value columns.comments 'default','default' columns.types string:string #### A masked pattern was here #### name default.srcpart numFiles 1 numRows 500 partition_columns ds/hr partition_columns.types string:string rawDataSize 5312 serialization.ddl struct srcpart { string key, string value} serialization.format 1 serialization.lib org.apache.hadoop.hive.serde2.NullStructSerDe totalSize 5812 #### A masked pattern was here #### serde: org.apache.hadoop.hive.serde2.NullStructSerDe input format: org.apache.hadoop.mapred.TextInputFormat output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat properties: bucket_count -1 columns key,value columns.comments 'default','default' columns.types string:string #### A masked pattern was here #### name default.srcpart partition_columns ds/hr partition_columns.types string:string serialization.ddl struct srcpart { string key, string value} serialization.format 1 serialization.lib org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe #### A masked pattern was here #### serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe name: default.srcpart name: default.srcpart -mr-10005default.srcpart{ds=2008-04-08, hr=12} Partition input format: org.apache.hadoop.hive.ql.io.OneNullRowInputFormat output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat partition values: ds 2008-04-08 hr 12 properties: COLUMN_STATS_ACCURATE true bucket_count -1 columns key,value columns.comments 'default','default' columns.types string:string #### A masked pattern was here #### name default.srcpart numFiles 1 numRows 500 partition_columns ds/hr partition_columns.types string:string rawDataSize 5312 serialization.ddl struct srcpart { string key, string value} serialization.format 1 serialization.lib org.apache.hadoop.hive.serde2.NullStructSerDe totalSize 5812 #### A masked pattern was here #### serde: org.apache.hadoop.hive.serde2.NullStructSerDe input format: org.apache.hadoop.mapred.TextInputFormat output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat properties: bucket_count -1 columns key,value columns.comments 'default','default' columns.types string:string #### A masked pattern was here #### name default.srcpart partition_columns ds/hr partition_columns.types string:string serialization.ddl struct srcpart { string key, string value} serialization.format 1 serialization.lib org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe #### A masked pattern was here #### serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe name: default.srcpart name: default.srcpart -mr-10006default.srcpart{ds=2008-04-09, hr=11} Partition input format: org.apache.hadoop.hive.ql.io.OneNullRowInputFormat output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat partition values: ds 2008-04-09 hr 11 properties: COLUMN_STATS_ACCURATE true bucket_count -1 columns key,value columns.comments 'default','default' columns.types string:string #### A masked pattern was here #### name default.srcpart numFiles 1 numRows 500 partition_columns ds/hr partition_columns.types string:string rawDataSize 5312 serialization.ddl struct srcpart { string key, string value} serialization.format 1 serialization.lib org.apache.hadoop.hive.serde2.NullStructSerDe totalSize 5812 #### A masked pattern was here #### serde: org.apache.hadoop.hive.serde2.NullStructSerDe input format: org.apache.hadoop.mapred.TextInputFormat output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat properties: bucket_count -1 columns key,value columns.comments 'default','default' columns.types string:string #### A masked pattern was here #### name default.srcpart partition_columns ds/hr partition_columns.types string:string serialization.ddl struct srcpart { string key, string value} serialization.format 1 serialization.lib org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe #### A masked pattern was here #### serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe name: default.srcpart name: default.srcpart -mr-10007default.srcpart{ds=2008-04-09, hr=12} Partition input format: org.apache.hadoop.hive.ql.io.OneNullRowInputFormat output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat partition values: ds 2008-04-09 hr 12 properties: COLUMN_STATS_ACCURATE true bucket_count -1 columns key,value columns.comments 'default','default' columns.types string:string #### A masked pattern was here #### name default.srcpart numFiles 1 numRows 500 partition_columns ds/hr partition_columns.types string:string rawDataSize 5312 serialization.ddl struct srcpart { string key, string value} serialization.format 1 serialization.lib org.apache.hadoop.hive.serde2.NullStructSerDe totalSize 5812 #### A masked pattern was here #### serde: org.apache.hadoop.hive.serde2.NullStructSerDe input format: org.apache.hadoop.mapred.TextInputFormat output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat properties: bucket_count -1 columns key,value columns.comments 'default','default' columns.types string:string #### A masked pattern was here #### name default.srcpart partition_columns ds/hr partition_columns.types string:string serialization.ddl struct srcpart { string key, string value} serialization.format 1 serialization.lib org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe #### A masked pattern was here #### serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe name: default.srcpart name: default.srcpart Truncated Path -> Alias: -mr-10004default.srcpart{ds=2008-04-08, hr=11} [b:srcpart] -mr-10005default.srcpart{ds=2008-04-08, hr=12} [b:srcpart] -mr-10006default.srcpart{ds=2008-04-09, hr=11} [b:srcpart] -mr-10007default.srcpart{ds=2008-04-09, hr=12} [b:srcpart] Needs Tagging: false Reduce Operator Tree: Select Operator expressions: VALUE._col0 (type: string) outputColumnNames: _col0 Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE Limit Number of rows: 0 Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE File Output Operator compressed: false GlobalTableId: 0 #### A masked pattern was here #### NumFilesPerFileSink: 1 table: input format: org.apache.hadoop.mapred.SequenceFileInputFormat output format: org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat properties: columns _col0 columns.types string escape.delim \ serialization.lib org.apache.hadoop.hive.serde2.lazybinary.LazyBinarySerDe serde: org.apache.hadoop.hive.serde2.lazybinary.LazyBinarySerDe TotalFiles: 1 GatherStats: false MultiFileSpray: false Stage: Stage-1 Map Reduce Map Operator Tree: TableScan GatherStats: false Reduce Output Operator key expressions: _col0 (type: string) sort order: + Map-reduce partition columns: _col0 (type: string) Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE tag: 1 auto parallelism: false TableScan alias: src Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE GatherStats: false Filter Operator isSamplingPred: false predicate: false (type: boolean) Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE Select Operator expressions: key (type: string) outputColumnNames: _col0 Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE Reduce Output Operator key expressions: _col0 (type: string) sort order: + Map-reduce partition columns: _col0 (type: string) Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE tag: 0 auto parallelism: false Path -> Alias: -mr-10003default.src{} [a:src] #### A masked pattern was here #### Path -> Partition: -mr-10003default.src{} Partition input format: org.apache.hadoop.hive.ql.io.OneNullRowInputFormat output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat properties: COLUMN_STATS_ACCURATE true bucket_count -1 columns key,value columns.comments 'default','default' columns.types string:string #### A masked pattern was here #### name default.src numFiles 1 numRows 500 rawDataSize 5312 serialization.ddl struct src { string key, string value} serialization.format 1 serialization.lib org.apache.hadoop.hive.serde2.NullStructSerDe totalSize 5812 #### A masked pattern was here #### serde: org.apache.hadoop.hive.serde2.NullStructSerDe input format: org.apache.hadoop.mapred.TextInputFormat output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat properties: COLUMN_STATS_ACCURATE true bucket_count -1 columns key,value columns.comments 'default','default' columns.types string:string #### A masked pattern was here #### name default.src numFiles 1 numRows 500 rawDataSize 5312 serialization.ddl struct src { string key, string value} serialization.format 1 serialization.lib org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe totalSize 5812 #### A masked pattern was here #### serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe name: default.src name: default.src #### A masked pattern was here #### Partition base file name: -mr-10002 input format: org.apache.hadoop.mapred.SequenceFileInputFormat output format: org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat properties: columns _col0 columns.types string escape.delim \ serialization.lib org.apache.hadoop.hive.serde2.lazybinary.LazyBinarySerDe serde: org.apache.hadoop.hive.serde2.lazybinary.LazyBinarySerDe input format: org.apache.hadoop.mapred.SequenceFileInputFormat output format: org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat properties: columns _col0 columns.types string escape.delim \ serialization.lib org.apache.hadoop.hive.serde2.lazybinary.LazyBinarySerDe serde: org.apache.hadoop.hive.serde2.lazybinary.LazyBinarySerDe Truncated Path -> Alias: -mr-10003default.src{} [a:src] #### A masked pattern was here #### Needs Tagging: true Reduce Operator Tree: Join Operator condition map: Left Outer Join0 to 1 keys: 0 _col0 (type: string) 1 _col0 (type: string) outputColumnNames: _col0, _col1 Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE Select Operator expressions: _col0 (type: string), _col1 (type: string) outputColumnNames: _col0, _col1 Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE File Output Operator compressed: false GlobalTableId: 0 #### A masked pattern was here #### NumFilesPerFileSink: 1 Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE #### A masked pattern was here #### table: input format: org.apache.hadoop.mapred.TextInputFormat output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat properties: columns _col0,_col1 columns.types string:string escape.delim \ hive.serialization.extend.nesting.levels true serialization.format 1 serialization.lib org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe TotalFiles: 1 GatherStats: false MultiFileSpray: false Stage: Stage-0 Fetch Operator limit: -1 Processor Tree: ListSink PREHOOK: query: select * from (select key from src where false) a left outer join (select key from srcpart limit 0) b on a.key=b.key PREHOOK: type: QUERY PREHOOK: Input: default@src PREHOOK: Input: default@srcpart PREHOOK: Input: default@srcpart@ds=2008-04-08/hr=11 PREHOOK: Input: default@srcpart@ds=2008-04-08/hr=12 PREHOOK: Input: default@srcpart@ds=2008-04-09/hr=11 PREHOOK: Input: default@srcpart@ds=2008-04-09/hr=12 #### A masked pattern was here #### POSTHOOK: query: select * from (select key from src where false) a left outer join (select key from srcpart limit 0) b on a.key=b.key POSTHOOK: type: QUERY POSTHOOK: Input: default@src POSTHOOK: Input: default@srcpart POSTHOOK: Input: default@srcpart@ds=2008-04-08/hr=11 POSTHOOK: Input: default@srcpart@ds=2008-04-08/hr=12 POSTHOOK: Input: default@srcpart@ds=2008-04-09/hr=11 POSTHOOK: Input: default@srcpart@ds=2008-04-09/hr=12 #### A masked pattern was here #### PREHOOK: query: explain extended select count(key) from src where false union all select count(key) from srcpart PREHOOK: type: QUERY POSTHOOK: query: explain extended select count(key) from src where false union all select count(key) from srcpart POSTHOOK: type: QUERY ABSTRACT SYNTAX TREE: TOK_QUERY TOK_FROM TOK_SUBQUERY TOK_UNION TOK_QUERY TOK_FROM TOK_TABREF TOK_TABNAME src TOK_INSERT TOK_DESTINATION TOK_DIR TOK_TMP_FILE TOK_SELECT TOK_SELEXPR TOK_FUNCTION count TOK_TABLE_OR_COL key TOK_WHERE false TOK_QUERY TOK_FROM TOK_TABREF TOK_TABNAME srcpart TOK_INSERT TOK_DESTINATION TOK_DIR TOK_TMP_FILE TOK_SELECT TOK_SELEXPR TOK_FUNCTION count TOK_TABLE_OR_COL key _u1 TOK_INSERT TOK_DESTINATION TOK_DIR TOK_TMP_FILE TOK_SELECT TOK_SELEXPR TOK_ALLCOLREF STAGE DEPENDENCIES: Stage-1 is a root stage Stage-2 depends on stages: Stage-1, Stage-3 Stage-3 is a root stage Stage-0 depends on stages: Stage-2 STAGE PLANS: Stage: Stage-1 Map Reduce Map Operator Tree: TableScan alias: src Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE GatherStats: false Filter Operator isSamplingPred: false predicate: false (type: boolean) Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE Group By Operator aggregations: count(key) mode: hash outputColumnNames: _col0 Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: NONE Reduce Output Operator sort order: Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: NONE tag: -1 value expressions: _col0 (type: bigint) auto parallelism: false Path -> Alias: -mr-10004default.src{} [null-subquery1:_u1-subquery1:src] Path -> Partition: -mr-10004default.src{} Partition input format: org.apache.hadoop.hive.ql.io.OneNullRowInputFormat output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat properties: COLUMN_STATS_ACCURATE true bucket_count -1 columns key,value columns.comments 'default','default' columns.types string:string #### A masked pattern was here #### name default.src numFiles 1 numRows 500 rawDataSize 5312 serialization.ddl struct src { string key, string value} serialization.format 1 serialization.lib org.apache.hadoop.hive.serde2.NullStructSerDe totalSize 5812 #### A masked pattern was here #### serde: org.apache.hadoop.hive.serde2.NullStructSerDe input format: org.apache.hadoop.mapred.TextInputFormat output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat properties: COLUMN_STATS_ACCURATE true bucket_count -1 columns key,value columns.comments 'default','default' columns.types string:string #### A masked pattern was here #### name default.src numFiles 1 numRows 500 rawDataSize 5312 serialization.ddl struct src { string key, string value} serialization.format 1 serialization.lib org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe totalSize 5812 #### A masked pattern was here #### serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe name: default.src name: default.src Truncated Path -> Alias: -mr-10004default.src{} [null-subquery1:_u1-subquery1:src] Needs Tagging: false Reduce Operator Tree: Group By Operator aggregations: count(VALUE._col0) mode: mergepartial outputColumnNames: _col0 Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: NONE File Output Operator compressed: false GlobalTableId: 0 #### A masked pattern was here #### NumFilesPerFileSink: 1 table: input format: org.apache.hadoop.mapred.SequenceFileInputFormat output format: org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat properties: columns _col0 columns.types bigint escape.delim \ serialization.lib org.apache.hadoop.hive.serde2.lazybinary.LazyBinarySerDe serde: org.apache.hadoop.hive.serde2.lazybinary.LazyBinarySerDe TotalFiles: 1 GatherStats: false MultiFileSpray: false Stage: Stage-2 Map Reduce Map Operator Tree: TableScan GatherStats: false Union Statistics: Num rows: 2 Data size: 16 Basic stats: COMPLETE Column stats: NONE Select Operator expressions: _col0 (type: bigint) outputColumnNames: _col0 Statistics: Num rows: 2 Data size: 16 Basic stats: COMPLETE Column stats: NONE File Output Operator compressed: false GlobalTableId: 0 #### A masked pattern was here #### NumFilesPerFileSink: 1 Statistics: Num rows: 2 Data size: 16 Basic stats: COMPLETE Column stats: NONE #### A masked pattern was here #### table: input format: org.apache.hadoop.mapred.TextInputFormat output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat properties: columns _col0 columns.types bigint escape.delim \ hive.serialization.extend.nesting.levels true serialization.format 1 serialization.lib org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe TotalFiles: 1 GatherStats: false MultiFileSpray: false TableScan GatherStats: false Union Statistics: Num rows: 2 Data size: 16 Basic stats: COMPLETE Column stats: NONE Select Operator expressions: _col0 (type: bigint) outputColumnNames: _col0 Statistics: Num rows: 2 Data size: 16 Basic stats: COMPLETE Column stats: NONE File Output Operator compressed: false GlobalTableId: 0 #### A masked pattern was here #### NumFilesPerFileSink: 1 Statistics: Num rows: 2 Data size: 16 Basic stats: COMPLETE Column stats: NONE #### A masked pattern was here #### table: input format: org.apache.hadoop.mapred.TextInputFormat output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat properties: columns _col0 columns.types bigint escape.delim \ hive.serialization.extend.nesting.levels true serialization.format 1 serialization.lib org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe TotalFiles: 1 GatherStats: false MultiFileSpray: false Path -> Alias: #### A masked pattern was here #### Path -> Partition: #### A masked pattern was here #### Partition base file name: -mr-10002 input format: org.apache.hadoop.mapred.SequenceFileInputFormat output format: org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat properties: columns _col0 columns.types bigint escape.delim \ serialization.lib org.apache.hadoop.hive.serde2.lazybinary.LazyBinarySerDe serde: org.apache.hadoop.hive.serde2.lazybinary.LazyBinarySerDe input format: org.apache.hadoop.mapred.SequenceFileInputFormat output format: org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat properties: columns _col0 columns.types bigint escape.delim \ serialization.lib org.apache.hadoop.hive.serde2.lazybinary.LazyBinarySerDe serde: org.apache.hadoop.hive.serde2.lazybinary.LazyBinarySerDe #### A masked pattern was here #### Partition base file name: -mr-10003 input format: org.apache.hadoop.mapred.SequenceFileInputFormat output format: org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat properties: columns _col0 columns.types bigint escape.delim \ serialization.lib org.apache.hadoop.hive.serde2.lazybinary.LazyBinarySerDe serde: org.apache.hadoop.hive.serde2.lazybinary.LazyBinarySerDe input format: org.apache.hadoop.mapred.SequenceFileInputFormat output format: org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat properties: columns _col0 columns.types bigint escape.delim \ serialization.lib org.apache.hadoop.hive.serde2.lazybinary.LazyBinarySerDe serde: org.apache.hadoop.hive.serde2.lazybinary.LazyBinarySerDe Truncated Path -> Alias: #### A masked pattern was here #### Stage: Stage-3 Map Reduce Map Operator Tree: TableScan alias: srcpart Statistics: Num rows: 2000 Data size: 21248 Basic stats: COMPLETE Column stats: NONE GatherStats: false Select Operator expressions: key (type: string) outputColumnNames: key Statistics: Num rows: 2000 Data size: 21248 Basic stats: COMPLETE Column stats: NONE Group By Operator aggregations: count(key) mode: hash outputColumnNames: _col0 Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: NONE Reduce Output Operator sort order: Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: NONE tag: -1 value expressions: _col0 (type: bigint) auto parallelism: false Path -> Alias: #### A masked pattern was here #### Path -> Partition: #### A masked pattern was here #### Partition base file name: hr=11 input format: org.apache.hadoop.mapred.TextInputFormat output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat partition values: ds 2008-04-08 hr 11 properties: COLUMN_STATS_ACCURATE true bucket_count -1 columns key,value columns.comments 'default','default' columns.types string:string #### A masked pattern was here #### name default.srcpart numFiles 1 numRows 500 partition_columns ds/hr partition_columns.types string:string rawDataSize 5312 serialization.ddl struct srcpart { string key, string value} serialization.format 1 serialization.lib org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe totalSize 5812 #### A masked pattern was here #### serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe input format: org.apache.hadoop.mapred.TextInputFormat output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat properties: bucket_count -1 columns key,value columns.comments 'default','default' columns.types string:string #### A masked pattern was here #### name default.srcpart partition_columns ds/hr partition_columns.types string:string serialization.ddl struct srcpart { string key, string value} serialization.format 1 serialization.lib org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe #### A masked pattern was here #### serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe name: default.srcpart name: default.srcpart #### A masked pattern was here #### Partition base file name: hr=12 input format: org.apache.hadoop.mapred.TextInputFormat output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat partition values: ds 2008-04-08 hr 12 properties: COLUMN_STATS_ACCURATE true bucket_count -1 columns key,value columns.comments 'default','default' columns.types string:string #### A masked pattern was here #### name default.srcpart numFiles 1 numRows 500 partition_columns ds/hr partition_columns.types string:string rawDataSize 5312 serialization.ddl struct srcpart { string key, string value} serialization.format 1 serialization.lib org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe totalSize 5812 #### A masked pattern was here #### serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe input format: org.apache.hadoop.mapred.TextInputFormat output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat properties: bucket_count -1 columns key,value columns.comments 'default','default' columns.types string:string #### A masked pattern was here #### name default.srcpart partition_columns ds/hr partition_columns.types string:string serialization.ddl struct srcpart { string key, string value} serialization.format 1 serialization.lib org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe #### A masked pattern was here #### serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe name: default.srcpart name: default.srcpart #### A masked pattern was here #### Partition base file name: hr=11 input format: org.apache.hadoop.mapred.TextInputFormat output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat partition values: ds 2008-04-09 hr 11 properties: COLUMN_STATS_ACCURATE true bucket_count -1 columns key,value columns.comments 'default','default' columns.types string:string #### A masked pattern was here #### name default.srcpart numFiles 1 numRows 500 partition_columns ds/hr partition_columns.types string:string rawDataSize 5312 serialization.ddl struct srcpart { string key, string value} serialization.format 1 serialization.lib org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe totalSize 5812 #### A masked pattern was here #### serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe input format: org.apache.hadoop.mapred.TextInputFormat output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat properties: bucket_count -1 columns key,value columns.comments 'default','default' columns.types string:string #### A masked pattern was here #### name default.srcpart partition_columns ds/hr partition_columns.types string:string serialization.ddl struct srcpart { string key, string value} serialization.format 1 serialization.lib org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe #### A masked pattern was here #### serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe name: default.srcpart name: default.srcpart #### A masked pattern was here #### Partition base file name: hr=12 input format: org.apache.hadoop.mapred.TextInputFormat output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat partition values: ds 2008-04-09 hr 12 properties: COLUMN_STATS_ACCURATE true bucket_count -1 columns key,value columns.comments 'default','default' columns.types string:string #### A masked pattern was here #### name default.srcpart numFiles 1 numRows 500 partition_columns ds/hr partition_columns.types string:string rawDataSize 5312 serialization.ddl struct srcpart { string key, string value} serialization.format 1 serialization.lib org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe totalSize 5812 #### A masked pattern was here #### serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe input format: org.apache.hadoop.mapred.TextInputFormat output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat properties: bucket_count -1 columns key,value columns.comments 'default','default' columns.types string:string #### A masked pattern was here #### name default.srcpart partition_columns ds/hr partition_columns.types string:string serialization.ddl struct srcpart { string key, string value} serialization.format 1 serialization.lib org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe #### A masked pattern was here #### serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe name: default.srcpart name: default.srcpart Truncated Path -> Alias: /srcpart/ds=2008-04-08/hr=11 [null-subquery2:_u1-subquery2:srcpart] /srcpart/ds=2008-04-08/hr=12 [null-subquery2:_u1-subquery2:srcpart] /srcpart/ds=2008-04-09/hr=11 [null-subquery2:_u1-subquery2:srcpart] /srcpart/ds=2008-04-09/hr=12 [null-subquery2:_u1-subquery2:srcpart] Needs Tagging: false Reduce Operator Tree: Group By Operator aggregations: count(VALUE._col0) mode: mergepartial outputColumnNames: _col0 Statistics: Num rows: 1 Data size: 8 Basic stats: COMPLETE Column stats: NONE File Output Operator compressed: false GlobalTableId: 0 #### A masked pattern was here #### NumFilesPerFileSink: 1 table: input format: org.apache.hadoop.mapred.SequenceFileInputFormat output format: org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat properties: columns _col0 columns.types bigint escape.delim \ serialization.lib org.apache.hadoop.hive.serde2.lazybinary.LazyBinarySerDe serde: org.apache.hadoop.hive.serde2.lazybinary.LazyBinarySerDe TotalFiles: 1 GatherStats: false MultiFileSpray: false Stage: Stage-0 Fetch Operator limit: -1 Processor Tree: ListSink PREHOOK: query: select count(key) from src where false union all select count(key) from srcpart PREHOOK: type: QUERY PREHOOK: Input: default@src PREHOOK: Input: default@srcpart PREHOOK: Input: default@srcpart@ds=2008-04-08/hr=11 PREHOOK: Input: default@srcpart@ds=2008-04-08/hr=12 PREHOOK: Input: default@srcpart@ds=2008-04-09/hr=11 PREHOOK: Input: default@srcpart@ds=2008-04-09/hr=12 #### A masked pattern was here #### POSTHOOK: query: select count(key) from src where false union all select count(key) from srcpart POSTHOOK: type: QUERY POSTHOOK: Input: default@src POSTHOOK: Input: default@srcpart POSTHOOK: Input: default@srcpart@ds=2008-04-08/hr=11 POSTHOOK: Input: default@srcpart@ds=2008-04-08/hr=12 POSTHOOK: Input: default@srcpart@ds=2008-04-09/hr=11 POSTHOOK: Input: default@srcpart@ds=2008-04-09/hr=12 #### A masked pattern was here #### 0 2000 Warning: Shuffle Join JOIN[11][tables = [a, b]] in Stage 'Stage-1:MAPRED' is a cross product PREHOOK: query: explain extended select * from (select key from src where false) a left outer join (select value from srcpart limit 0) b PREHOOK: type: QUERY POSTHOOK: query: explain extended select * from (select key from src where false) a left outer join (select value from srcpart limit 0) b POSTHOOK: type: QUERY ABSTRACT SYNTAX TREE: TOK_QUERY TOK_FROM TOK_LEFTOUTERJOIN TOK_SUBQUERY TOK_QUERY TOK_FROM TOK_TABREF TOK_TABNAME src TOK_INSERT TOK_DESTINATION TOK_DIR TOK_TMP_FILE TOK_SELECT TOK_SELEXPR TOK_TABLE_OR_COL key TOK_WHERE false a TOK_SUBQUERY TOK_QUERY TOK_FROM TOK_TABREF TOK_TABNAME srcpart TOK_INSERT TOK_DESTINATION TOK_DIR TOK_TMP_FILE TOK_SELECT TOK_SELEXPR TOK_TABLE_OR_COL value TOK_LIMIT 0 b TOK_INSERT TOK_DESTINATION TOK_DIR TOK_TMP_FILE TOK_SELECT TOK_SELEXPR TOK_ALLCOLREF STAGE DEPENDENCIES: Stage-2 is a root stage Stage-1 depends on stages: Stage-2 Stage-0 depends on stages: Stage-1 STAGE PLANS: Stage: Stage-2 Map Reduce Map Operator Tree: TableScan alias: srcpart Statistics: Num rows: 2000 Data size: 21248 Basic stats: COMPLETE Column stats: NONE GatherStats: false Select Operator expressions: value (type: string) outputColumnNames: _col0 Statistics: Num rows: 2000 Data size: 21248 Basic stats: COMPLETE Column stats: NONE Limit Number of rows: 0 Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE Reduce Output Operator sort order: Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE tag: -1 value expressions: _col0 (type: string) auto parallelism: false Path -> Alias: -mr-10004default.srcpart{ds=2008-04-08, hr=11} [b:srcpart] -mr-10005default.srcpart{ds=2008-04-08, hr=12} [b:srcpart] -mr-10006default.srcpart{ds=2008-04-09, hr=11} [b:srcpart] -mr-10007default.srcpart{ds=2008-04-09, hr=12} [b:srcpart] Path -> Partition: -mr-10004default.srcpart{ds=2008-04-08, hr=11} Partition input format: org.apache.hadoop.hive.ql.io.OneNullRowInputFormat output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat partition values: ds 2008-04-08 hr 11 properties: COLUMN_STATS_ACCURATE true bucket_count -1 columns key,value columns.comments 'default','default' columns.types string:string #### A masked pattern was here #### name default.srcpart numFiles 1 numRows 500 partition_columns ds/hr partition_columns.types string:string rawDataSize 5312 serialization.ddl struct srcpart { string key, string value} serialization.format 1 serialization.lib org.apache.hadoop.hive.serde2.NullStructSerDe totalSize 5812 #### A masked pattern was here #### serde: org.apache.hadoop.hive.serde2.NullStructSerDe input format: org.apache.hadoop.mapred.TextInputFormat output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat properties: bucket_count -1 columns key,value columns.comments 'default','default' columns.types string:string #### A masked pattern was here #### name default.srcpart partition_columns ds/hr partition_columns.types string:string serialization.ddl struct srcpart { string key, string value} serialization.format 1 serialization.lib org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe #### A masked pattern was here #### serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe name: default.srcpart name: default.srcpart -mr-10005default.srcpart{ds=2008-04-08, hr=12} Partition input format: org.apache.hadoop.hive.ql.io.OneNullRowInputFormat output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat partition values: ds 2008-04-08 hr 12 properties: COLUMN_STATS_ACCURATE true bucket_count -1 columns key,value columns.comments 'default','default' columns.types string:string #### A masked pattern was here #### name default.srcpart numFiles 1 numRows 500 partition_columns ds/hr partition_columns.types string:string rawDataSize 5312 serialization.ddl struct srcpart { string key, string value} serialization.format 1 serialization.lib org.apache.hadoop.hive.serde2.NullStructSerDe totalSize 5812 #### A masked pattern was here #### serde: org.apache.hadoop.hive.serde2.NullStructSerDe input format: org.apache.hadoop.mapred.TextInputFormat output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat properties: bucket_count -1 columns key,value columns.comments 'default','default' columns.types string:string #### A masked pattern was here #### name default.srcpart partition_columns ds/hr partition_columns.types string:string serialization.ddl struct srcpart { string key, string value} serialization.format 1 serialization.lib org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe #### A masked pattern was here #### serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe name: default.srcpart name: default.srcpart -mr-10006default.srcpart{ds=2008-04-09, hr=11} Partition input format: org.apache.hadoop.hive.ql.io.OneNullRowInputFormat output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat partition values: ds 2008-04-09 hr 11 properties: COLUMN_STATS_ACCURATE true bucket_count -1 columns key,value columns.comments 'default','default' columns.types string:string #### A masked pattern was here #### name default.srcpart numFiles 1 numRows 500 partition_columns ds/hr partition_columns.types string:string rawDataSize 5312 serialization.ddl struct srcpart { string key, string value} serialization.format 1 serialization.lib org.apache.hadoop.hive.serde2.NullStructSerDe totalSize 5812 #### A masked pattern was here #### serde: org.apache.hadoop.hive.serde2.NullStructSerDe input format: org.apache.hadoop.mapred.TextInputFormat output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat properties: bucket_count -1 columns key,value columns.comments 'default','default' columns.types string:string #### A masked pattern was here #### name default.srcpart partition_columns ds/hr partition_columns.types string:string serialization.ddl struct srcpart { string key, string value} serialization.format 1 serialization.lib org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe #### A masked pattern was here #### serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe name: default.srcpart name: default.srcpart -mr-10007default.srcpart{ds=2008-04-09, hr=12} Partition input format: org.apache.hadoop.hive.ql.io.OneNullRowInputFormat output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat partition values: ds 2008-04-09 hr 12 properties: COLUMN_STATS_ACCURATE true bucket_count -1 columns key,value columns.comments 'default','default' columns.types string:string #### A masked pattern was here #### name default.srcpart numFiles 1 numRows 500 partition_columns ds/hr partition_columns.types string:string rawDataSize 5312 serialization.ddl struct srcpart { string key, string value} serialization.format 1 serialization.lib org.apache.hadoop.hive.serde2.NullStructSerDe totalSize 5812 #### A masked pattern was here #### serde: org.apache.hadoop.hive.serde2.NullStructSerDe input format: org.apache.hadoop.mapred.TextInputFormat output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat properties: bucket_count -1 columns key,value columns.comments 'default','default' columns.types string:string #### A masked pattern was here #### name default.srcpart partition_columns ds/hr partition_columns.types string:string serialization.ddl struct srcpart { string key, string value} serialization.format 1 serialization.lib org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe #### A masked pattern was here #### serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe name: default.srcpart name: default.srcpart Truncated Path -> Alias: -mr-10004default.srcpart{ds=2008-04-08, hr=11} [b:srcpart] -mr-10005default.srcpart{ds=2008-04-08, hr=12} [b:srcpart] -mr-10006default.srcpart{ds=2008-04-09, hr=11} [b:srcpart] -mr-10007default.srcpart{ds=2008-04-09, hr=12} [b:srcpart] Needs Tagging: false Reduce Operator Tree: Select Operator expressions: VALUE._col0 (type: string) outputColumnNames: _col0 Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE Limit Number of rows: 0 Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE File Output Operator compressed: false GlobalTableId: 0 #### A masked pattern was here #### NumFilesPerFileSink: 1 table: input format: org.apache.hadoop.mapred.SequenceFileInputFormat output format: org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat properties: columns _col0 columns.types string escape.delim \ serialization.lib org.apache.hadoop.hive.serde2.lazybinary.LazyBinarySerDe serde: org.apache.hadoop.hive.serde2.lazybinary.LazyBinarySerDe TotalFiles: 1 GatherStats: false MultiFileSpray: false Stage: Stage-1 Map Reduce Map Operator Tree: TableScan GatherStats: false Reduce Output Operator sort order: Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE tag: 1 value expressions: _col0 (type: string) auto parallelism: false TableScan alias: src Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE GatherStats: false Filter Operator isSamplingPred: false predicate: false (type: boolean) Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE Select Operator expressions: key (type: string) outputColumnNames: _col0 Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE Reduce Output Operator sort order: Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE tag: 0 value expressions: _col0 (type: string) auto parallelism: false Path -> Alias: -mr-10003default.src{} [a:src] #### A masked pattern was here #### Path -> Partition: -mr-10003default.src{} Partition input format: org.apache.hadoop.hive.ql.io.OneNullRowInputFormat output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat properties: COLUMN_STATS_ACCURATE true bucket_count -1 columns key,value columns.comments 'default','default' columns.types string:string #### A masked pattern was here #### name default.src numFiles 1 numRows 500 rawDataSize 5312 serialization.ddl struct src { string key, string value} serialization.format 1 serialization.lib org.apache.hadoop.hive.serde2.NullStructSerDe totalSize 5812 #### A masked pattern was here #### serde: org.apache.hadoop.hive.serde2.NullStructSerDe input format: org.apache.hadoop.mapred.TextInputFormat output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat properties: COLUMN_STATS_ACCURATE true bucket_count -1 columns key,value columns.comments 'default','default' columns.types string:string #### A masked pattern was here #### name default.src numFiles 1 numRows 500 rawDataSize 5312 serialization.ddl struct src { string key, string value} serialization.format 1 serialization.lib org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe totalSize 5812 #### A masked pattern was here #### serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe name: default.src name: default.src #### A masked pattern was here #### Partition base file name: -mr-10002 input format: org.apache.hadoop.mapred.SequenceFileInputFormat output format: org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat properties: columns _col0 columns.types string escape.delim \ serialization.lib org.apache.hadoop.hive.serde2.lazybinary.LazyBinarySerDe serde: org.apache.hadoop.hive.serde2.lazybinary.LazyBinarySerDe input format: org.apache.hadoop.mapred.SequenceFileInputFormat output format: org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat properties: columns _col0 columns.types string escape.delim \ serialization.lib org.apache.hadoop.hive.serde2.lazybinary.LazyBinarySerDe serde: org.apache.hadoop.hive.serde2.lazybinary.LazyBinarySerDe Truncated Path -> Alias: -mr-10003default.src{} [a:src] #### A masked pattern was here #### Needs Tagging: true Reduce Operator Tree: Join Operator condition map: Left Outer Join0 to 1 keys: 0 1 outputColumnNames: _col0, _col1 Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE Select Operator expressions: _col0 (type: string), _col1 (type: string) outputColumnNames: _col0, _col1 Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE File Output Operator compressed: false GlobalTableId: 0 #### A masked pattern was here #### NumFilesPerFileSink: 1 Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE #### A masked pattern was here #### table: input format: org.apache.hadoop.mapred.TextInputFormat output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat properties: columns _col0,_col1 columns.types string:string escape.delim \ hive.serialization.extend.nesting.levels true serialization.format 1 serialization.lib org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe TotalFiles: 1 GatherStats: false MultiFileSpray: false Stage: Stage-0 Fetch Operator limit: -1 Processor Tree: ListSink Warning: Shuffle Join JOIN[11][tables = [a, b]] in Stage 'Stage-1:MAPRED' is a cross product PREHOOK: query: select * from (select key from src where false) a left outer join (select value from srcpart limit 0) b PREHOOK: type: QUERY PREHOOK: Input: default@src PREHOOK: Input: default@srcpart PREHOOK: Input: default@srcpart@ds=2008-04-08/hr=11 PREHOOK: Input: default@srcpart@ds=2008-04-08/hr=12 PREHOOK: Input: default@srcpart@ds=2008-04-09/hr=11 PREHOOK: Input: default@srcpart@ds=2008-04-09/hr=12 #### A masked pattern was here #### POSTHOOK: query: select * from (select key from src where false) a left outer join (select value from srcpart limit 0) b POSTHOOK: type: QUERY POSTHOOK: Input: default@src POSTHOOK: Input: default@srcpart POSTHOOK: Input: default@srcpart@ds=2008-04-08/hr=11 POSTHOOK: Input: default@srcpart@ds=2008-04-08/hr=12 POSTHOOK: Input: default@srcpart@ds=2008-04-09/hr=11 POSTHOOK: Input: default@srcpart@ds=2008-04-09/hr=12 #### A masked pattern was here #### PREHOOK: query: explain extended select * from (select key from src union all select src.key from src left outer join srcpart on src.key = srcpart.key) a where false PREHOOK: type: QUERY POSTHOOK: query: explain extended select * from (select key from src union all select src.key from src left outer join srcpart on src.key = srcpart.key) a where false POSTHOOK: type: QUERY ABSTRACT SYNTAX TREE: TOK_QUERY TOK_FROM TOK_SUBQUERY TOK_UNION TOK_QUERY TOK_FROM TOK_TABREF TOK_TABNAME src TOK_INSERT TOK_DESTINATION TOK_DIR TOK_TMP_FILE TOK_SELECT TOK_SELEXPR TOK_TABLE_OR_COL key TOK_QUERY TOK_FROM TOK_LEFTOUTERJOIN TOK_TABREF TOK_TABNAME src TOK_TABREF TOK_TABNAME srcpart = . TOK_TABLE_OR_COL src key . TOK_TABLE_OR_COL srcpart key TOK_INSERT TOK_DESTINATION TOK_DIR TOK_TMP_FILE TOK_SELECT TOK_SELEXPR . TOK_TABLE_OR_COL src key a TOK_INSERT TOK_DESTINATION TOK_DIR TOK_TMP_FILE TOK_SELECT TOK_SELEXPR TOK_ALLCOLREF TOK_WHERE false STAGE DEPENDENCIES: Stage-3 is a root stage Stage-2 depends on stages: Stage-3 Stage-0 depends on stages: Stage-2 STAGE PLANS: Stage: Stage-3 Map Reduce Map Operator Tree: TableScan alias: src Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE GatherStats: false Filter Operator isSamplingPred: false predicate: false (type: boolean) Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE Reduce Output Operator key expressions: key (type: string) sort order: + Map-reduce partition columns: key (type: string) Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE tag: 0 auto parallelism: false Path -> Alias: -mr-10004default.src{} [null-subquery2:a-subquery2:src] Path -> Partition: -mr-10004default.src{} Partition input format: org.apache.hadoop.hive.ql.io.OneNullRowInputFormat output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat properties: COLUMN_STATS_ACCURATE true bucket_count -1 columns key,value columns.comments 'default','default' columns.types string:string #### A masked pattern was here #### name default.src numFiles 1 numRows 500 rawDataSize 5312 serialization.ddl struct src { string key, string value} serialization.format 1 serialization.lib org.apache.hadoop.hive.serde2.NullStructSerDe totalSize 5812 #### A masked pattern was here #### serde: org.apache.hadoop.hive.serde2.NullStructSerDe input format: org.apache.hadoop.mapred.TextInputFormat output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat properties: COLUMN_STATS_ACCURATE true bucket_count -1 columns key,value columns.comments 'default','default' columns.types string:string #### A masked pattern was here #### name default.src numFiles 1 numRows 500 rawDataSize 5312 serialization.ddl struct src { string key, string value} serialization.format 1 serialization.lib org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe totalSize 5812 #### A masked pattern was here #### serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe name: default.src name: default.src Truncated Path -> Alias: -mr-10004default.src{} [null-subquery2:a-subquery2:src] Needs Tagging: true Reduce Operator Tree: Join Operator condition map: Left Outer Join0 to 1 keys: 0 key (type: string) 1 key (type: string) outputColumnNames: _col0 Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE File Output Operator compressed: false GlobalTableId: 0 #### A masked pattern was here #### NumFilesPerFileSink: 1 table: input format: org.apache.hadoop.mapred.SequenceFileInputFormat output format: org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat properties: columns _col0 columns.types string escape.delim \ serialization.lib org.apache.hadoop.hive.serde2.lazybinary.LazyBinarySerDe serde: org.apache.hadoop.hive.serde2.lazybinary.LazyBinarySerDe TotalFiles: 1 GatherStats: false MultiFileSpray: false Stage: Stage-2 Map Reduce Map Operator Tree: TableScan GatherStats: false Union Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE Select Operator expressions: _col0 (type: string) outputColumnNames: _col0 Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE File Output Operator compressed: false GlobalTableId: 0 #### A masked pattern was here #### NumFilesPerFileSink: 1 Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE #### A masked pattern was here #### table: input format: org.apache.hadoop.mapred.TextInputFormat output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat properties: columns _col0 columns.types string escape.delim \ hive.serialization.extend.nesting.levels true serialization.format 1 serialization.lib org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe TotalFiles: 1 GatherStats: false MultiFileSpray: false TableScan alias: src Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE GatherStats: false Filter Operator isSamplingPred: false predicate: false (type: boolean) Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE Select Operator expressions: key (type: string) outputColumnNames: _col0 Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE Union Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE Select Operator expressions: _col0 (type: string) outputColumnNames: _col0 Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE File Output Operator compressed: false GlobalTableId: 0 #### A masked pattern was here #### NumFilesPerFileSink: 1 Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE #### A masked pattern was here #### table: input format: org.apache.hadoop.mapred.TextInputFormat output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat properties: columns _col0 columns.types string escape.delim \ hive.serialization.extend.nesting.levels true serialization.format 1 serialization.lib org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe TotalFiles: 1 GatherStats: false MultiFileSpray: false Path -> Alias: -mr-10003default.src{} [null-subquery1:a-subquery1:src] #### A masked pattern was here #### Path -> Partition: -mr-10003default.src{} Partition input format: org.apache.hadoop.hive.ql.io.OneNullRowInputFormat output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat properties: COLUMN_STATS_ACCURATE true bucket_count -1 columns key,value columns.comments 'default','default' columns.types string:string #### A masked pattern was here #### name default.src numFiles 1 numRows 500 rawDataSize 5312 serialization.ddl struct src { string key, string value} serialization.format 1 serialization.lib org.apache.hadoop.hive.serde2.NullStructSerDe totalSize 5812 #### A masked pattern was here #### serde: org.apache.hadoop.hive.serde2.NullStructSerDe input format: org.apache.hadoop.mapred.TextInputFormat output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat properties: COLUMN_STATS_ACCURATE true bucket_count -1 columns key,value columns.comments 'default','default' columns.types string:string #### A masked pattern was here #### name default.src numFiles 1 numRows 500 rawDataSize 5312 serialization.ddl struct src { string key, string value} serialization.format 1 serialization.lib org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe totalSize 5812 #### A masked pattern was here #### serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe name: default.src name: default.src #### A masked pattern was here #### Partition base file name: -mr-10002 input format: org.apache.hadoop.mapred.SequenceFileInputFormat output format: org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat properties: columns _col0 columns.types string escape.delim \ serialization.lib org.apache.hadoop.hive.serde2.lazybinary.LazyBinarySerDe serde: org.apache.hadoop.hive.serde2.lazybinary.LazyBinarySerDe input format: org.apache.hadoop.mapred.SequenceFileInputFormat output format: org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat properties: columns _col0 columns.types string escape.delim \ serialization.lib org.apache.hadoop.hive.serde2.lazybinary.LazyBinarySerDe serde: org.apache.hadoop.hive.serde2.lazybinary.LazyBinarySerDe Truncated Path -> Alias: -mr-10003default.src{} [null-subquery1:a-subquery1:src] #### A masked pattern was here #### Stage: Stage-0 Fetch Operator limit: -1 Processor Tree: ListSink PREHOOK: query: select * from (select key from src union all select src.key from src left outer join srcpart on src.key = srcpart.key) a where false PREHOOK: type: QUERY PREHOOK: Input: default@src PREHOOK: Input: default@srcpart #### A masked pattern was here #### POSTHOOK: query: select * from (select key from src union all select src.key from src left outer join srcpart on src.key = srcpart.key) a where false POSTHOOK: type: QUERY POSTHOOK: Input: default@src POSTHOOK: Input: default@srcpart #### A masked pattern was here #### PREHOOK: query: explain extended select * from src s1, src s2 where false and s1.value = s2.value PREHOOK: type: QUERY POSTHOOK: query: explain extended select * from src s1, src s2 where false and s1.value = s2.value POSTHOOK: type: QUERY ABSTRACT SYNTAX TREE: TOK_QUERY TOK_FROM TOK_JOIN TOK_TABREF TOK_TABNAME src s1 TOK_TABREF TOK_TABNAME src s2 TOK_INSERT TOK_DESTINATION TOK_DIR TOK_TMP_FILE TOK_SELECT TOK_SELEXPR TOK_ALLCOLREF TOK_WHERE and false = . TOK_TABLE_OR_COL s1 value . TOK_TABLE_OR_COL s2 value STAGE DEPENDENCIES: Stage-1 is a root stage Stage-0 depends on stages: Stage-1 STAGE PLANS: Stage: Stage-1 Map Reduce Map Operator Tree: TableScan alias: s1 Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE GatherStats: false Filter Operator isSamplingPred: false predicate: false (type: boolean) Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE Reduce Output Operator key expressions: value (type: string) sort order: + Map-reduce partition columns: value (type: string) Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE tag: 0 value expressions: key (type: string) auto parallelism: false TableScan alias: s2 Statistics: Num rows: 500 Data size: 5312 Basic stats: COMPLETE Column stats: NONE GatherStats: false Filter Operator isSamplingPred: false predicate: false (type: boolean) Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE Reduce Output Operator key expressions: value (type: string) sort order: + Map-reduce partition columns: value (type: string) Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE tag: 1 value expressions: key (type: string) auto parallelism: false Path -> Alias: -mr-10002default.src{} [s1, s2] Path -> Partition: -mr-10002default.src{} Partition input format: org.apache.hadoop.hive.ql.io.OneNullRowInputFormat output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat properties: COLUMN_STATS_ACCURATE true bucket_count -1 columns key,value columns.comments 'default','default' columns.types string:string #### A masked pattern was here #### name default.src numFiles 1 numRows 500 rawDataSize 5312 serialization.ddl struct src { string key, string value} serialization.format 1 serialization.lib org.apache.hadoop.hive.serde2.NullStructSerDe totalSize 5812 #### A masked pattern was here #### serde: org.apache.hadoop.hive.serde2.NullStructSerDe input format: org.apache.hadoop.mapred.TextInputFormat output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat properties: COLUMN_STATS_ACCURATE true bucket_count -1 columns key,value columns.comments 'default','default' columns.types string:string #### A masked pattern was here #### name default.src numFiles 1 numRows 500 rawDataSize 5312 serialization.ddl struct src { string key, string value} serialization.format 1 serialization.lib org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe totalSize 5812 #### A masked pattern was here #### serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe name: default.src name: default.src Truncated Path -> Alias: -mr-10002default.src{} [s1, s2] Needs Tagging: true Reduce Operator Tree: Join Operator condition map: Inner Join 0 to 1 keys: 0 value (type: string) 1 value (type: string) outputColumnNames: _col0, _col1, _col5, _col6 Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE Select Operator expressions: _col0 (type: string), _col1 (type: string), _col5 (type: string), _col6 (type: string) outputColumnNames: _col0, _col1, _col2, _col3 Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE File Output Operator compressed: false GlobalTableId: 0 #### A masked pattern was here #### NumFilesPerFileSink: 1 Statistics: Num rows: 0 Data size: 0 Basic stats: NONE Column stats: NONE #### A masked pattern was here #### table: input format: org.apache.hadoop.mapred.TextInputFormat output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat properties: columns _col0,_col1,_col2,_col3 columns.types string:string:string:string escape.delim \ hive.serialization.extend.nesting.levels true serialization.format 1 serialization.lib org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe TotalFiles: 1 GatherStats: false MultiFileSpray: false Stage: Stage-0 Fetch Operator limit: -1 Processor Tree: ListSink PREHOOK: query: select * from src s1, src s2 where false and s1.value = s2.value PREHOOK: type: QUERY PREHOOK: Input: default@src #### A masked pattern was here #### POSTHOOK: query: select * from src s1, src s2 where false and s1.value = s2.value POSTHOOK: type: QUERY POSTHOOK: Input: default@src #### A masked pattern was here ####