PREHOOK: query: create table a (val1 int, val2 int) PREHOOK: type: CREATETABLE POSTHOOK: query: create table a (val1 int, val2 int) POSTHOOK: type: CREATETABLE POSTHOOK: Output: default@a PREHOOK: query: create table b (val1 int, val2 int) PREHOOK: type: CREATETABLE POSTHOOK: query: create table b (val1 int, val2 int) POSTHOOK: type: CREATETABLE POSTHOOK: Output: default@b PREHOOK: query: create table c (val1 int, val2 int) PREHOOK: type: CREATETABLE POSTHOOK: query: create table c (val1 int, val2 int) POSTHOOK: type: CREATETABLE POSTHOOK: Output: default@c PREHOOK: query: create table d (val1 int, val2 int) PREHOOK: type: CREATETABLE POSTHOOK: query: create table d (val1 int, val2 int) POSTHOOK: type: CREATETABLE POSTHOOK: Output: default@d PREHOOK: query: create table e (val1 int, val2 int) PREHOOK: type: CREATETABLE POSTHOOK: query: create table e (val1 int, val2 int) POSTHOOK: type: CREATETABLE POSTHOOK: Output: default@e PREHOOK: query: explain select * from a join b on a.val1=b.val1 join c on a.val1=c.val1 join d on a.val1=d.val1 join e on a.val2=e.val2 PREHOOK: type: QUERY POSTHOOK: query: explain select * from a join b on a.val1=b.val1 join c on a.val1=c.val1 join d on a.val1=d.val1 join e on a.val2=e.val2 POSTHOOK: type: QUERY ABSTRACT SYNTAX TREE: (TOK_QUERY (TOK_FROM (TOK_JOIN (TOK_JOIN (TOK_JOIN (TOK_JOIN (TOK_TABREF (TOK_TABNAME a)) (TOK_TABREF (TOK_TABNAME b)) (= (. (TOK_TABLE_OR_COL a) val1) (. (TOK_TABLE_OR_COL b) val1))) (TOK_TABREF (TOK_TABNAME c)) (= (. (TOK_TABLE_OR_COL a) val1) (. (TOK_TABLE_OR_COL c) val1))) (TOK_TABREF (TOK_TABNAME d)) (= (. (TOK_TABLE_OR_COL a) val1) (. (TOK_TABLE_OR_COL d) val1))) (TOK_TABREF (TOK_TABNAME e)) (= (. (TOK_TABLE_OR_COL a) val2) (. (TOK_TABLE_OR_COL e) val2)))) (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-0 is a root stage STAGE PLANS: Stage: Stage-1 Map Reduce Alias -> Map Operator Tree: a TableScan alias: a Reduce Output Operator key expressions: expr: val1 type: int sort order: + Map-reduce partition columns: expr: val1 type: int tag: 0 value expressions: expr: val1 type: int expr: val2 type: int b TableScan alias: b Reduce Output Operator key expressions: expr: val1 type: int sort order: + Map-reduce partition columns: expr: val1 type: int tag: 1 value expressions: expr: val1 type: int expr: val2 type: int c TableScan alias: c Reduce Output Operator key expressions: expr: val1 type: int sort order: + Map-reduce partition columns: expr: val1 type: int tag: 2 value expressions: expr: val1 type: int expr: val2 type: int d TableScan alias: d Reduce Output Operator key expressions: expr: val1 type: int sort order: + Map-reduce partition columns: expr: val1 type: int tag: 3 value expressions: expr: val1 type: int expr: val2 type: int Reduce Operator Tree: Join Operator condition map: Inner Join 0 to 1 Inner Join 0 to 2 Inner Join 0 to 3 condition expressions: 0 {VALUE._col0} {VALUE._col1} 1 {VALUE._col0} {VALUE._col1} 2 {VALUE._col0} {VALUE._col1} 3 {VALUE._col0} {VALUE._col1} handleSkewJoin: false outputColumnNames: _col0, _col1, _col4, _col5, _col8, _col9, _col12, _col13 File Output Operator compressed: false GlobalTableId: 0 table: input format: org.apache.hadoop.mapred.SequenceFileInputFormat output format: org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat Stage: Stage-2 Map Reduce Alias -> Map Operator Tree: $INTNAME Reduce Output Operator key expressions: expr: _col1 type: int sort order: + Map-reduce partition columns: expr: _col1 type: int tag: 0 value expressions: expr: _col12 type: int expr: _col13 type: int expr: _col4 type: int expr: _col5 type: int expr: _col8 type: int expr: _col9 type: int expr: _col0 type: int expr: _col1 type: int e TableScan alias: e Reduce Output Operator key expressions: expr: val2 type: int sort order: + Map-reduce partition columns: expr: val2 type: int tag: 1 value expressions: expr: val1 type: int expr: val2 type: int Reduce Operator Tree: Join Operator condition map: Inner Join 0 to 1 condition expressions: 0 {VALUE._col0} {VALUE._col1} {VALUE._col4} {VALUE._col5} {VALUE._col8} {VALUE._col9} {VALUE._col12} {VALUE._col13} 1 {VALUE._col0} {VALUE._col1} handleSkewJoin: false outputColumnNames: _col0, _col1, _col4, _col5, _col8, _col9, _col12, _col13, _col16, _col17 Select Operator expressions: expr: _col12 type: int expr: _col13 type: int expr: _col4 type: int expr: _col5 type: int expr: _col8 type: int expr: _col9 type: int expr: _col0 type: int expr: _col1 type: int expr: _col16 type: int expr: _col17 type: int outputColumnNames: _col0, _col1, _col2, _col3, _col4, _col5, _col6, _col7, _col8, _col9 File Output Operator compressed: false GlobalTableId: 0 table: input format: org.apache.hadoop.mapred.TextInputFormat output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat Stage: Stage-0 Fetch Operator limit: -1 PREHOOK: query: --HIVE-3070 filter on outer join condition removed while merging join tree explain select * from src a join src b on a.key=b.key left outer join src c on b.key=c.key and b.key<10 PREHOOK: type: QUERY POSTHOOK: query: --HIVE-3070 filter on outer join condition removed while merging join tree explain select * from src a join src b on a.key=b.key left outer join src c on b.key=c.key and b.key<10 POSTHOOK: type: QUERY ABSTRACT SYNTAX TREE: (TOK_QUERY (TOK_FROM (TOK_LEFTOUTERJOIN (TOK_JOIN (TOK_TABREF (TOK_TABNAME src) a) (TOK_TABREF (TOK_TABNAME src) b) (= (. (TOK_TABLE_OR_COL a) key) (. (TOK_TABLE_OR_COL b) key))) (TOK_TABREF (TOK_TABNAME src) c) (and (= (. (TOK_TABLE_OR_COL b) key) (. (TOK_TABLE_OR_COL c) key)) (< (. (TOK_TABLE_OR_COL b) key) 10)))) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR TOK_ALLCOLREF)))) STAGE DEPENDENCIES: Stage-1 is a root stage Stage-0 is a root stage STAGE PLANS: Stage: Stage-1 Map Reduce Alias -> Map Operator Tree: a TableScan alias: a Reduce Output Operator key expressions: expr: key type: string sort order: + Map-reduce partition columns: expr: key type: string tag: 0 value expressions: expr: key type: string expr: value type: string b TableScan alias: b Reduce Output Operator key expressions: expr: key type: string sort order: + Map-reduce partition columns: expr: key type: string tag: 1 value expressions: expr: key type: string expr: value type: string c TableScan alias: c Reduce Output Operator key expressions: expr: key type: string sort order: + Map-reduce partition columns: expr: key type: string tag: 2 value expressions: expr: key type: string expr: value type: string Reduce Operator Tree: Join Operator condition map: Inner Join 0 to 1 Left Outer Join1 to 2 condition expressions: 0 {VALUE._col0} {VALUE._col1} 1 {VALUE._col0} {VALUE._col1} 2 {VALUE._col0} {VALUE._col1} filter predicates: 0 1 {(VALUE._col0 < 10)} 2 handleSkewJoin: false outputColumnNames: _col0, _col1, _col4, _col5, _col8, _col9 Select Operator expressions: expr: _col0 type: string expr: _col1 type: string expr: _col4 type: string expr: _col5 type: string expr: _col8 type: string expr: _col9 type: string outputColumnNames: _col0, _col1, _col2, _col3, _col4, _col5 File Output Operator compressed: false GlobalTableId: 0 table: input format: org.apache.hadoop.mapred.TextInputFormat output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat Stage: Stage-0 Fetch Operator limit: -1