Namit Jain created HIVE-3925:
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Summary: dependencies of fetch task are not shown by explain
Key: HIVE-3925
URL: https://issues.apache.org/jira/browse/HIVE-3925
Project: Hive
Issue Type: Bug
Components: Query Processor
Reporter: Namit Jain
A simple query like:
hive> explain select * from src order by key;
OK
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_ALLCOLREF)) (TOK_ORDERBY (TOK_TABSORTCOLNAMEASC (TOK_TABLE_OR_COL key)))))
STAGE DEPENDENCIES:
Stage-1 is a root stage
Stage-0 is a root stage
Stage: Stage-0
Fetch Operator
limit: -1
Stage-0 is not a root stage and depends on stage-1.
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