Xuefu Zhang created HIVE-6901: --------------------------------- Summary: Explain plan doesn't show operator tree for the fetch operator Key: HIVE-6901 URL: https://issues.apache.org/jira/browse/HIVE-6901 Project: Hive Issue Type: Bug Components: Query Processor Affects Versions: 0.12.0 Reporter: Xuefu Zhang Assignee: Xuefu Zhang Priority: Minor
Explaining a simple select query that involves a MR phase doesn't show complete processor tree for the fetch operator. {code} hive> explain select d from test; OK STAGE DEPENDENCIES: Stage-1 is a root stage Stage-0 is a root stage STAGE PLANS: Stage: Stage-1 Map Reduce Map Operator Tree: ... Stage: Stage-0 Fetch Operator limit: -1 {code} It would be nice if the operator tree is shown even if there is only one node. Please note that in local execution, the operator tree is complete: {code} hive> explain select * from test; OK STAGE DEPENDENCIES: Stage-0 is a root stage STAGE PLANS: Stage: Stage-0 Fetch Operator limit: -1 Processor Tree: TableScan alias: test Statistics: Num rows: 8 Data size: 34 Basic stats: COMPLETE Column stats: NONE Select Operator expressions: d (type: int) outputColumnNames: _col0 Statistics: Num rows: 8 Data size: 34 Basic stats: COMPLETE Column stats: NONE ListSink {code} -- This message was sent by Atlassian JIRA (v6.2#6252)