Details
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Bug
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Status: Closed
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Major
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Resolution: Fixed
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None
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None
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None
Description
SELECT tmp3.key, tmp3.value, tmp3.count FROM (SELECT tmp1.key as key, tmp1.value as value, tmp2.count as count FROM (SELECT key, value FROM src) tmp1 JOIN (SELECT count(*) as count FROM src) tmp2 ) tmp3;
The plan is executable.
SELECT tmp3.key, tmp3.value, tmp3.count FROM (SELECT tmp1.key as key, tmp1.value as value, tmp2.count as count FROM (SELECT * FROM src) tmp1 JOIN (SELECT count(*) as count FROM src) tmp2 ) tmp3;
The plan is executable.
SELECT tmp4.key, tmp4.value, tmp4.count FROM (SELECT tmp2.key as key, tmp2.value as value, tmp3.count as count FROM (SELECT * FROM (SELECT key, value FROM src) tmp1 ) tmp2 JOIN (SELECT count(*) as count FROM src) tmp3 ) tmp4;
The plan is not executable.
The plan related to the MapJoin is
Stage: Stage-5 Map Reduce Local Work Alias -> Map Local Tables: tmp4:tmp2:tmp1:src Fetch Operator limit: -1 Alias -> Map Local Operator Tree: tmp4:tmp2:tmp1:src TableScan alias: src Select Operator expressions: expr: key type: string expr: value type: string outputColumnNames: _col0, _col1 HashTable Sink Operator condition expressions: 0 1 {_col0} handleSkewJoin: false keys: 0 [] 1 [] Position of Big Table: 1 Stage: Stage-4 Map Reduce Alias -> Map Operator Tree: $INTNAME Map Join Operator condition map: Inner Join 0 to 1 condition expressions: 0 1 {_col0} handleSkewJoin: false keys: 0 [] 1 [] outputColumnNames: _col2 Position of Big Table: 1 Select Operator expressions: expr: _col0 type: string expr: _col1 type: string expr: _col2 type: bigint outputColumnNames: _col0, _col1, _col2 File Output Operator compressed: false GlobalTableId: 0 table: input format: org.apache.hadoop.mapred.TextInputFormat output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat Local Work: Map Reduce Local Work
The outputColumnNames of MapJoin is '_col2'. But it should be '_col0, _col1, _col2'