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From "Phabricator (JIRA)" <>
Subject [jira] [Commented] (HIVE-4294) Single sourced multi query cannot handle lateral view
Date Thu, 11 Apr 2013 10:09:18 GMT


Phabricator commented on HIVE-4294:

njain has commented on the revision "HIVE-4294 [jira] Single sourced multi query cannot handle
lateral view".

  Looks good

  minor comments:

  Operator and Operator<?> should be replaced by:
  Operator<? extends OperatorDesc>

  mostly looks good

  ql/src/java/org/apache/hadoop/hive/ql/parse/ ? extends Serializable
  ql/src/java/org/apache/hadoop/hive/ql/parse/ Operator --->
Operator<? extends Serializable>
  ql/src/java/org/apache/hadoop/hive/ql/parse/ ? -->  ? extends
  ql/src/test/queries/clientpositive/multi_insert_lateral_view.q:49 This test is awesome,
can you add a comment about the common distinct optimization for this plan.
  It takes some time to get it from the query plan.
  Some simple comments would really help


To: JIRA, navis
Cc: njain

> Single sourced multi query cannot handle lateral view
> -----------------------------------------------------
>                 Key: HIVE-4294
>                 URL:
>             Project: Hive
>          Issue Type: Improvement
>          Components: Query Processor
>            Reporter: Navis
>            Assignee: Navis
>            Priority: Minor
>         Attachments: HIVE-4294.D10161.1.patch
> For example,
> {noformat}
> hive> explain from src 
>     > select key, C lateral view explode(array(key, value)) A as C;
> FAILED: ParseException line 3:22 missing EOF at 'view' near 'lateral'
> {noformat}

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