You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@hive.apache.org by Harish Butani <rh...@gmail.com> on 2013/10/23 22:46:02 UTC
Review Request 14887: Subquery support: disallow nesting of SubQueries
-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/14887/
-----------------------------------------------------------
Review request for hive and Ashutosh Chauhan.
Bugs: HIVE-5613
https://issues.apache.org/jira/browse/HIVE-5613
Repository: hive-git
Description
-------
This is Restriction 9 from the SubQuery design doc:
We will not do algebraic transformations for these kinds of queries:
{noformat}
-query 1
select ...
from x
where
x.b in (select u
from y
where y.c = 10 and
exists (select m from z where z.A = x.C)
)
- query 2
select ...
from x
where
x.b in (select u
from y
where y.c = 10 and
exists (select m from z where z.A = y.D)
{noformat}
Diffs
-----
ql/src/java/org/apache/hadoop/hive/ql/parse/QB.java 50b5a77
ql/src/java/org/apache/hadoop/hive/ql/parse/SemanticAnalyzer.java 6fc3cd5
ql/src/java/org/apache/hadoop/hive/ql/parse/SubQueryUtils.java 2d7775c
ql/src/test/queries/clientnegative/subquery_nested_subquery.q PRE-CREATION
ql/src/test/results/clientnegative/subquery_nested_subquery.q.out PRE-CREATION
Diff: https://reviews.apache.org/r/14887/diff/
Testing
-------
tested subquery tests
added new subquery_nested_subquery.q negative test
Thanks,
Harish Butani
Re: Review Request 14887: Subquery support: disallow nesting of SubQueries
Posted by Harish Butani <rh...@gmail.com>.
-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/14887/
-----------------------------------------------------------
(Updated Oct. 29, 2013, 6:43 p.m.)
Review request for hive and Ashutosh Chauhan.
Changes
-------
fix -ve test subquery_subquery_chain.q
Add check when building SubQuery Object: SubQuery AST must not contain a child SubQuery AST
Bugs: HIVE-5613
https://issues.apache.org/jira/browse/HIVE-5613
Repository: hive-git
Description
-------
This is Restriction 9 from the SubQuery design doc:
We will not do algebraic transformations for these kinds of queries:
{noformat}
-query 1
select ...
from x
where
x.b in (select u
from y
where y.c = 10 and
exists (select m from z where z.A = x.C)
)
- query 2
select ...
from x
where
x.b in (select u
from y
where y.c = 10 and
exists (select m from z where z.A = y.D)
{noformat}
Diffs (updated)
-----
ql/src/java/org/apache/hadoop/hive/ql/parse/QB.java 50b5a77
ql/src/java/org/apache/hadoop/hive/ql/parse/SemanticAnalyzer.java cf0c895
ql/src/java/org/apache/hadoop/hive/ql/parse/SubQueryUtils.java 2d7775c
ql/src/test/queries/clientnegative/subquery_nested_subquery.q PRE-CREATION
ql/src/test/results/clientnegative/subquery_nested_subquery.q.out PRE-CREATION
ql/src/test/results/clientnegative/subquery_subquery_chain.q.out 2eadfc3
Diff: https://reviews.apache.org/r/14887/diff/
Testing
-------
tested subquery tests
added new subquery_nested_subquery.q negative test
Thanks,
Harish Butani
Re: Review Request 14887: Subquery support: disallow nesting of SubQueries
Posted by Ashutosh Chauhan <ha...@apache.org>.
-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/14887/#review27614
-----------------------------------------------------------
Ship it!
+1 Harish, can you attach the patch on jira so that Hive QA gets to run on it.
- Ashutosh Chauhan
On Oct. 23, 2013, 8:46 p.m., Harish Butani wrote:
>
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/14887/
> -----------------------------------------------------------
>
> (Updated Oct. 23, 2013, 8:46 p.m.)
>
>
> Review request for hive and Ashutosh Chauhan.
>
>
> Bugs: HIVE-5613
> https://issues.apache.org/jira/browse/HIVE-5613
>
>
> Repository: hive-git
>
>
> Description
> -------
>
> This is Restriction 9 from the SubQuery design doc:
> We will not do algebraic transformations for these kinds of queries:
>
> {noformat}
> -query 1
> select ...
> from x
> where
> x.b in (select u
> from y
> where y.c = 10 and
> exists (select m from z where z.A = x.C)
> )
> - query 2
> select ...
> from x
> where
> x.b in (select u
> from y
> where y.c = 10 and
> exists (select m from z where z.A = y.D)
> {noformat}
>
>
> Diffs
> -----
>
> ql/src/java/org/apache/hadoop/hive/ql/parse/QB.java 50b5a77
> ql/src/java/org/apache/hadoop/hive/ql/parse/SemanticAnalyzer.java 6fc3cd5
> ql/src/java/org/apache/hadoop/hive/ql/parse/SubQueryUtils.java 2d7775c
> ql/src/test/queries/clientnegative/subquery_nested_subquery.q PRE-CREATION
> ql/src/test/results/clientnegative/subquery_nested_subquery.q.out PRE-CREATION
>
> Diff: https://reviews.apache.org/r/14887/diff/
>
>
> Testing
> -------
>
> tested subquery tests
> added new subquery_nested_subquery.q negative test
>
>
> Thanks,
>
> Harish Butani
>
>