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From "Phabricator (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-784) Support uncorrelated subqueries in the WHERE clause
Date Mon, 14 Oct 2013 17:15:47 GMT

     [ https://issues.apache.org/jira/browse/HIVE-784?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Phabricator updated HIVE-784:
-----------------------------

    Attachment: D13443.1.patch

hbutani requested code review of "HIVE-784 [jira] Support uncorrelated subqueries in the WHERE
clause".

Reviewers: JIRA, ashutoshc

SubQuery: add tests for distinct

Hive currently only support views in the FROM-clause, some Facebook use cases suggest that
Hive should support subqueries such as those connected by IN/EXISTS in the WHERE-clause.

TEST PLAN
  EMPTY

REVISION DETAIL
  https://reviews.facebook.net/D13443

AFFECTED FILES
  ql/src/java/org/apache/hadoop/hive/ql/ErrorMsg.java
  ql/src/java/org/apache/hadoop/hive/ql/exec/Utilities.java
  ql/src/java/org/apache/hadoop/hive/ql/parse/HiveParser.g
  ql/src/java/org/apache/hadoop/hive/ql/parse/IdentifiersParser.g
  ql/src/java/org/apache/hadoop/hive/ql/parse/QBSubQuery.java
  ql/src/java/org/apache/hadoop/hive/ql/parse/SemanticAnalyzer.java
  ql/src/java/org/apache/hadoop/hive/ql/parse/SubQueryUtils.java
  ql/src/java/org/apache/hadoop/hive/ql/parse/TypeCheckProcFactory.java
  ql/src/test/queries/clientnegative/subquery_in_groupby.q
  ql/src/test/queries/clientnegative/subquery_in_select.q
  ql/src/test/queries/clientnegative/subquery_windowing_corr.q
  ql/src/test/queries/clientpositive/subquery_exists.q
  ql/src/test/queries/clientpositive/subquery_in.q
  ql/src/test/queries/clientpositive/subquery_multiinsert.q
  ql/src/test/queries/clientpositive/subquery_notexists.q
  ql/src/test/queries/clientpositive/subquery_notin.q
  ql/src/test/results/clientnegative/subquery_in_groupby.q.out
  ql/src/test/results/clientnegative/subquery_in_select.q.out
  ql/src/test/results/clientnegative/subquery_windowing_corr.q.out
  ql/src/test/results/clientpositive/subquery_exists.q.out
  ql/src/test/results/clientpositive/subquery_in.q.out
  ql/src/test/results/clientpositive/subquery_multiinsert.q.out
  ql/src/test/results/clientpositive/subquery_notexists.q.out
  ql/src/test/results/clientpositive/subquery_notin.q.out

MANAGE HERALD RULES
  https://reviews.facebook.net/herald/view/differential/

WHY DID I GET THIS EMAIL?
  https://reviews.facebook.net/herald/transcript/40029/

To: JIRA, ashutoshc, hbutani


> Support uncorrelated subqueries in the WHERE clause
> ---------------------------------------------------
>
>                 Key: HIVE-784
>                 URL: https://issues.apache.org/jira/browse/HIVE-784
>             Project: Hive
>          Issue Type: New Feature
>          Components: Query Processor
>            Reporter: Ning Zhang
>            Assignee: Harish Butani
>         Attachments: D13443.1.patch, HIVE-784.1.patch.txt, HIVE-784.2.patch, SubQuerySpec.pdf,
tpchQueriesUsingSubQueryClauses.sql
>
>
> Hive currently only support views in the FROM-clause, some Facebook use cases suggest
that Hive should support subqueries such as those connected by IN/EXISTS in the WHERE-clause.




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