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Posted to dev@hive.apache.org by "Phabricator (JIRA)" <ji...@apache.org> on 2013/02/14 07:58:13 UTC
[jira] [Updated] (HIVE-3925) dependencies of fetch task are not
shown by explain
[ https://issues.apache.org/jira/browse/HIVE-3925?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Phabricator updated HIVE-3925:
------------------------------
Attachment: HIVE-3925.D8577.1.patch
navis requested code review of "HIVE-3925 [jira] dependencies of fetch task are not shown by explain".
Reviewers: JIRA
HIVE-3925 dependencies of fetch task are not shown by explain
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.
TEST PLAN
EMPTY
REVISION DETAIL
https://reviews.facebook.net/D8577
AFFECTED FILES
ql/src/java/org/apache/hadoop/hive/ql/exec/ExplainTask.java
ql/src/java/org/apache/hadoop/hive/ql/exec/Task.java
ql/src/java/org/apache/hadoop/hive/ql/optimizer/GenMRFileSink1.java
ql/src/java/org/apache/hadoop/hive/ql/parse/SemanticAnalyzer.java
MANAGE HERALD RULES
https://reviews.facebook.net/herald/view/differential/
WHY DID I GET THIS EMAIL?
https://reviews.facebook.net/herald/transcript/20877/
To: JIRA, navis
> 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
> Attachments: HIVE-3925.D8577.1.patch
>
>
> 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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