[jira] [Updated] (HIVE-14251) Union All of different types resolves to incorrect data
[
https://issues.apache.org/jira/browse/HIVE-14251?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Sergio Peña updated HIVE-14251:
---
Target Version/s: 1.3.0, 2.0.2 (was: 1.3.0, 2.1.1, 2.0.2)
> Union All of different types resolves to incorrect data
> ---
>
> Key: HIVE-14251
> URL: https://issues.apache.org/jira/browse/HIVE-14251
> Project: Hive
> Issue Type: Bug
> Components: Query Planning
>Affects Versions: 2.0.0
>Reporter: Aihua Xu
>Assignee: Aihua Xu
> Fix For: 2.2.0
>
> Attachments: HIVE-14251.1.patch, HIVE-14251.2.patch,
> HIVE-14251.3.patch, HIVE-14251.4.patch, HIVE-14251.5.patch, HIVE-14251.6.patch
>
>
> create table src(c1 date, c2 int, c3 double);
> insert into src values ('2016-01-01',5,1.25);
> select * from
> (select c1 from src union all
> select c2 from src union all
> select c3 from src) t;
> It will return NULL for the c1 values. Seems the common data type is resolved
> to the last c3 which is double.
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[jira] [Updated] (HIVE-14251) Union All of different types resolves to incorrect data
[
https://issues.apache.org/jira/browse/HIVE-14251?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Aihua Xu updated HIVE-14251:
Target Version/s: 1.3.0, 2.1.1, 2.0.2
> Union All of different types resolves to incorrect data
> ---
>
> Key: HIVE-14251
> URL: https://issues.apache.org/jira/browse/HIVE-14251
> Project: Hive
> Issue Type: Bug
> Components: Query Planning
>Affects Versions: 2.0.0
>Reporter: Aihua Xu
>Assignee: Aihua Xu
> Fix For: 2.2.0
>
> Attachments: HIVE-14251.1.patch, HIVE-14251.2.patch,
> HIVE-14251.3.patch, HIVE-14251.4.patch, HIVE-14251.5.patch, HIVE-14251.6.patch
>
>
> create table src(c1 date, c2 int, c3 double);
> insert into src values ('2016-01-01',5,1.25);
> select * from
> (select c1 from src union all
> select c2 from src union all
> select c3 from src) t;
> It will return NULL for the c1 values. Seems the common data type is resolved
> to the last c3 which is double.
--
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[jira] [Updated] (HIVE-14251) Union All of different types resolves to incorrect data
[
https://issues.apache.org/jira/browse/HIVE-14251?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Aihua Xu updated HIVE-14251:
Release Note: With this change, Hive will only perform implicit conversion
within each type groups including string group, number group or date group, not
across groups. So in order to union a string type with a date type, a explicit
cast from string to date or from date to string is needed.
> Union All of different types resolves to incorrect data
> ---
>
> Key: HIVE-14251
> URL: https://issues.apache.org/jira/browse/HIVE-14251
> Project: Hive
> Issue Type: Bug
> Components: Query Planning
>Affects Versions: 2.0.0
>Reporter: Aihua Xu
>Assignee: Aihua Xu
> Fix For: 2.2.0
>
> Attachments: HIVE-14251.1.patch, HIVE-14251.2.patch,
> HIVE-14251.3.patch, HIVE-14251.4.patch, HIVE-14251.5.patch, HIVE-14251.6.patch
>
>
> create table src(c1 date, c2 int, c3 double);
> insert into src values ('2016-01-01',5,1.25);
> select * from
> (select c1 from src union all
> select c2 from src union all
> select c3 from src) t;
> It will return NULL for the c1 values. Seems the common data type is resolved
> to the last c3 which is double.
--
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[jira] [Updated] (HIVE-14251) Union All of different types resolves to incorrect data
[
https://issues.apache.org/jira/browse/HIVE-14251?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Aihua Xu updated HIVE-14251:
Resolution: Fixed
Fix Version/s: 2.2.0
Status: Resolved (was: Patch Available)
Pushed to master. Thanks Mohit for reviewing and Ashutosh for discussion.
> Union All of different types resolves to incorrect data
> ---
>
> Key: HIVE-14251
> URL: https://issues.apache.org/jira/browse/HIVE-14251
> Project: Hive
> Issue Type: Bug
> Components: Query Planning
>Affects Versions: 2.0.0
>Reporter: Aihua Xu
>Assignee: Aihua Xu
> Fix For: 2.2.0
>
> Attachments: HIVE-14251.1.patch, HIVE-14251.2.patch,
> HIVE-14251.3.patch, HIVE-14251.4.patch, HIVE-14251.5.patch, HIVE-14251.6.patch
>
>
> create table src(c1 date, c2 int, c3 double);
> insert into src values ('2016-01-01',5,1.25);
> select * from
> (select c1 from src union all
> select c2 from src union all
> select c3 from src) t;
> It will return NULL for the c1 values. Seems the common data type is resolved
> to the last c3 which is double.
--
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[jira] [Updated] (HIVE-14251) Union All of different types resolves to incorrect data
[
https://issues.apache.org/jira/browse/HIVE-14251?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Aihua Xu updated HIVE-14251:
Attachment: HIVE-14251.6.patch
Update the .q.out file for one test case union_null.q of spark.
> Union All of different types resolves to incorrect data
> ---
>
> Key: HIVE-14251
> URL: https://issues.apache.org/jira/browse/HIVE-14251
> Project: Hive
> Issue Type: Bug
> Components: Query Planning
>Affects Versions: 2.0.0
>Reporter: Aihua Xu
>Assignee: Aihua Xu
> Attachments: HIVE-14251.1.patch, HIVE-14251.2.patch,
> HIVE-14251.3.patch, HIVE-14251.4.patch, HIVE-14251.5.patch, HIVE-14251.6.patch
>
>
> create table src(c1 date, c2 int, c3 double);
> insert into src values ('2016-01-01',5,1.25);
> select * from
> (select c1 from src union all
> select c2 from src union all
> select c3 from src) t;
> It will return NULL for the c1 values. Seems the common data type is resolved
> to the last c3 which is double.
--
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[jira] [Updated] (HIVE-14251) Union All of different types resolves to incorrect data
[
https://issues.apache.org/jira/browse/HIVE-14251?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Aihua Xu updated HIVE-14251:
Status: Patch Available (was: In Progress)
Rebase to the latest with the same change.
> Union All of different types resolves to incorrect data
> ---
>
> Key: HIVE-14251
> URL: https://issues.apache.org/jira/browse/HIVE-14251
> Project: Hive
> Issue Type: Bug
> Components: Query Planning
>Affects Versions: 2.0.0
>Reporter: Aihua Xu
>Assignee: Aihua Xu
> Attachments: HIVE-14251.1.patch, HIVE-14251.2.patch,
> HIVE-14251.3.patch, HIVE-14251.4.patch, HIVE-14251.5.patch
>
>
> create table src(c1 date, c2 int, c3 double);
> insert into src values ('2016-01-01',5,1.25);
> select * from
> (select c1 from src union all
> select c2 from src union all
> select c3 from src) t;
> It will return NULL for the c1 values. Seems the common data type is resolved
> to the last c3 which is double.
--
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[jira] [Updated] (HIVE-14251) Union All of different types resolves to incorrect data
[
https://issues.apache.org/jira/browse/HIVE-14251?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Aihua Xu updated HIVE-14251:
Status: In Progress (was: Patch Available)
> Union All of different types resolves to incorrect data
> ---
>
> Key: HIVE-14251
> URL: https://issues.apache.org/jira/browse/HIVE-14251
> Project: Hive
> Issue Type: Bug
> Components: Query Planning
>Affects Versions: 2.0.0
>Reporter: Aihua Xu
>Assignee: Aihua Xu
> Attachments: HIVE-14251.1.patch, HIVE-14251.2.patch,
> HIVE-14251.3.patch, HIVE-14251.4.patch, HIVE-14251.5.patch
>
>
> create table src(c1 date, c2 int, c3 double);
> insert into src values ('2016-01-01',5,1.25);
> select * from
> (select c1 from src union all
> select c2 from src union all
> select c3 from src) t;
> It will return NULL for the c1 values. Seems the common data type is resolved
> to the last c3 which is double.
--
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[jira] [Updated] (HIVE-14251) Union All of different types resolves to incorrect data
[
https://issues.apache.org/jira/browse/HIVE-14251?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Aihua Xu updated HIVE-14251:
Attachment: HIVE-14251.5.patch
> Union All of different types resolves to incorrect data
> ---
>
> Key: HIVE-14251
> URL: https://issues.apache.org/jira/browse/HIVE-14251
> Project: Hive
> Issue Type: Bug
> Components: Query Planning
>Affects Versions: 2.0.0
>Reporter: Aihua Xu
>Assignee: Aihua Xu
> Attachments: HIVE-14251.1.patch, HIVE-14251.2.patch,
> HIVE-14251.3.patch, HIVE-14251.4.patch, HIVE-14251.5.patch
>
>
> create table src(c1 date, c2 int, c3 double);
> insert into src values ('2016-01-01',5,1.25);
> select * from
> (select c1 from src union all
> select c2 from src union all
> select c3 from src) t;
> It will return NULL for the c1 values. Seems the common data type is resolved
> to the last c3 which is double.
--
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[jira] [Updated] (HIVE-14251) Union All of different types resolves to incorrect data
[
https://issues.apache.org/jira/browse/HIVE-14251?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Aihua Xu updated HIVE-14251:
Status: Patch Available (was: Open)
> Union All of different types resolves to incorrect data
> ---
>
> Key: HIVE-14251
> URL: https://issues.apache.org/jira/browse/HIVE-14251
> Project: Hive
> Issue Type: Bug
> Components: Query Planning
>Affects Versions: 2.0.0
>Reporter: Aihua Xu
>Assignee: Aihua Xu
> Attachments: HIVE-14251.1.patch, HIVE-14251.2.patch,
> HIVE-14251.3.patch, HIVE-14251.4.patch
>
>
> create table src(c1 date, c2 int, c3 double);
> insert into src values ('2016-01-01',5,1.25);
> select * from
> (select c1 from src union all
> select c2 from src union all
> select c3 from src) t;
> It will return NULL for the c1 values. Seems the common data type is resolved
> to the last c3 which is double.
--
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[jira] [Updated] (HIVE-14251) Union All of different types resolves to incorrect data
[
https://issues.apache.org/jira/browse/HIVE-14251?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Aihua Xu updated HIVE-14251:
Status: Open (was: Patch Available)
> Union All of different types resolves to incorrect data
> ---
>
> Key: HIVE-14251
> URL: https://issues.apache.org/jira/browse/HIVE-14251
> Project: Hive
> Issue Type: Bug
> Components: Query Planning
>Affects Versions: 2.0.0
>Reporter: Aihua Xu
>Assignee: Aihua Xu
> Attachments: HIVE-14251.1.patch, HIVE-14251.2.patch,
> HIVE-14251.3.patch, HIVE-14251.4.patch
>
>
> create table src(c1 date, c2 int, c3 double);
> insert into src values ('2016-01-01',5,1.25);
> select * from
> (select c1 from src union all
> select c2 from src union all
> select c3 from src) t;
> It will return NULL for the c1 values. Seems the common data type is resolved
> to the last c3 which is double.
--
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[jira] [Updated] (HIVE-14251) Union All of different types resolves to incorrect data
[
https://issues.apache.org/jira/browse/HIVE-14251?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Aihua Xu updated HIVE-14251:
Attachment: HIVE-14251.4.patch
Patch-4: fix one unit test failure.
> Union All of different types resolves to incorrect data
> ---
>
> Key: HIVE-14251
> URL: https://issues.apache.org/jira/browse/HIVE-14251
> Project: Hive
> Issue Type: Bug
> Components: Query Planning
>Affects Versions: 2.0.0
>Reporter: Aihua Xu
>Assignee: Aihua Xu
> Attachments: HIVE-14251.1.patch, HIVE-14251.2.patch,
> HIVE-14251.3.patch, HIVE-14251.4.patch
>
>
> create table src(c1 date, c2 int, c3 double);
> insert into src values ('2016-01-01',5,1.25);
> select * from
> (select c1 from src union all
> select c2 from src union all
> select c3 from src) t;
> It will return NULL for the c1 values. Seems the common data type is resolved
> to the last c3 which is double.
--
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[jira] [Updated] (HIVE-14251) Union All of different types resolves to incorrect data
[
https://issues.apache.org/jira/browse/HIVE-14251?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Aihua Xu updated HIVE-14251:
Attachment: HIVE-14251.3.patch
Attached patch-3: update other affected unit tests. Removed one unit test since
union_type_chk.q is dup of union36.q with the current change.
> Union All of different types resolves to incorrect data
> ---
>
> Key: HIVE-14251
> URL: https://issues.apache.org/jira/browse/HIVE-14251
> Project: Hive
> Issue Type: Bug
> Components: Query Planning
>Affects Versions: 2.0.0
>Reporter: Aihua Xu
>Assignee: Aihua Xu
> Attachments: HIVE-14251.1.patch, HIVE-14251.2.patch,
> HIVE-14251.3.patch
>
>
> create table src(c1 date, c2 int, c3 double);
> insert into src values ('2016-01-01',5,1.25);
> select * from
> (select c1 from src union all
> select c2 from src union all
> select c3 from src) t;
> It will return NULL for the c1 values. Seems the common data type is resolved
> to the last c3 which is double.
--
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[jira] [Updated] (HIVE-14251) Union All of different types resolves to incorrect data
[
https://issues.apache.org/jira/browse/HIVE-14251?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Aihua Xu updated HIVE-14251:
Status: Patch Available (was: In Progress)
Patch-2: follow what Postgres does. For union operator, we disallow the
implicit conversion across different type groups. If they are in the same type
groups like numeric, date or string groups, then implicit conversion will be
performed.
> Union All of different types resolves to incorrect data
> ---
>
> Key: HIVE-14251
> URL: https://issues.apache.org/jira/browse/HIVE-14251
> Project: Hive
> Issue Type: Bug
> Components: Query Planning
>Affects Versions: 2.0.0
>Reporter: Aihua Xu
>Assignee: Aihua Xu
> Attachments: HIVE-14251.1.patch, HIVE-14251.2.patch
>
>
> create table src(c1 date, c2 int, c3 double);
> insert into src values ('2016-01-01',5,1.25);
> select * from
> (select c1 from src union all
> select c2 from src union all
> select c3 from src) t;
> It will return NULL for the c1 values. Seems the common data type is resolved
> to the last c3 which is double.
--
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[jira] [Updated] (HIVE-14251) Union All of different types resolves to incorrect data
[
https://issues.apache.org/jira/browse/HIVE-14251?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Aihua Xu updated HIVE-14251:
Attachment: HIVE-14251.2.patch
> Union All of different types resolves to incorrect data
> ---
>
> Key: HIVE-14251
> URL: https://issues.apache.org/jira/browse/HIVE-14251
> Project: Hive
> Issue Type: Bug
> Components: Query Planning
>Affects Versions: 2.0.0
>Reporter: Aihua Xu
>Assignee: Aihua Xu
> Attachments: HIVE-14251.1.patch, HIVE-14251.2.patch
>
>
> create table src(c1 date, c2 int, c3 double);
> insert into src values ('2016-01-01',5,1.25);
> select * from
> (select c1 from src union all
> select c2 from src union all
> select c3 from src) t;
> It will return NULL for the c1 values. Seems the common data type is resolved
> to the last c3 which is double.
--
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[jira] [Updated] (HIVE-14251) Union All of different types resolves to incorrect data
[
https://issues.apache.org/jira/browse/HIVE-14251?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Aihua Xu updated HIVE-14251:
Status: Open (was: Patch Available)
> Union All of different types resolves to incorrect data
> ---
>
> Key: HIVE-14251
> URL: https://issues.apache.org/jira/browse/HIVE-14251
> Project: Hive
> Issue Type: Bug
> Components: Query Planning
>Affects Versions: 2.0.0
>Reporter: Aihua Xu
>Assignee: Aihua Xu
> Attachments: HIVE-14251.1.patch, HIVE-14251.2.patch
>
>
> create table src(c1 date, c2 int, c3 double);
> insert into src values ('2016-01-01',5,1.25);
> select * from
> (select c1 from src union all
> select c2 from src union all
> select c3 from src) t;
> It will return NULL for the c1 values. Seems the common data type is resolved
> to the last c3 which is double.
--
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[jira] [Updated] (HIVE-14251) Union All of different types resolves to incorrect data
[
https://issues.apache.org/jira/browse/HIVE-14251?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Aihua Xu updated HIVE-14251:
Attachment: (was: HIVE-14251.1.patch)
> Union All of different types resolves to incorrect data
> ---
>
> Key: HIVE-14251
> URL: https://issues.apache.org/jira/browse/HIVE-14251
> Project: Hive
> Issue Type: Bug
> Components: Query Planning
>Affects Versions: 2.0.0
>Reporter: Aihua Xu
>Assignee: Aihua Xu
> Attachments: HIVE-14251.1.patch
>
>
> create table src(c1 date, c2 int, c3 double);
> insert into src values ('2016-01-01',5,1.25);
> select * from
> (select c1 from src union all
> select c2 from src union all
> select c3 from src) t;
> It will return NULL for the c1 values. Seems the common data type is resolved
> to the last c3 which is double.
--
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[jira] [Updated] (HIVE-14251) Union All of different types resolves to incorrect data
[
https://issues.apache.org/jira/browse/HIVE-14251?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Aihua Xu updated HIVE-14251:
Attachment: HIVE-14251.1.patch
> Union All of different types resolves to incorrect data
> ---
>
> Key: HIVE-14251
> URL: https://issues.apache.org/jira/browse/HIVE-14251
> Project: Hive
> Issue Type: Bug
> Components: Query Planning
>Affects Versions: 2.0.0
>Reporter: Aihua Xu
>Assignee: Aihua Xu
> Attachments: HIVE-14251.1.patch
>
>
> create table src(c1 date, c2 int, c3 double);
> insert into src values ('2016-01-01',5,1.25);
> select * from
> (select c1 from src union all
> select c2 from src union all
> select c3 from src) t;
> It will return NULL for the c1 values. Seems the common data type is resolved
> to the last c3 which is double.
--
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[jira] [Updated] (HIVE-14251) Union All of different types resolves to incorrect data
[
https://issues.apache.org/jira/browse/HIVE-14251?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Aihua Xu updated HIVE-14251:
Status: Patch Available (was: In Progress)
> Union All of different types resolves to incorrect data
> ---
>
> Key: HIVE-14251
> URL: https://issues.apache.org/jira/browse/HIVE-14251
> Project: Hive
> Issue Type: Bug
> Components: Query Planning
>Affects Versions: 2.0.0
>Reporter: Aihua Xu
>Assignee: Aihua Xu
> Attachments: HIVE-14251.1.patch
>
>
> create table src(c1 date, c2 int, c3 double);
> insert into src values ('2016-01-01',5,1.25);
> select * from
> (select c1 from src union all
> select c2 from src union all
> select c3 from src) t;
> It will return NULL for the c1 values. Seems the common data type is resolved
> to the last c3 which is double.
--
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[jira] [Updated] (HIVE-14251) Union All of different types resolves to incorrect data
[
https://issues.apache.org/jira/browse/HIVE-14251?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Aihua Xu updated HIVE-14251:
Status: In Progress (was: Patch Available)
> Union All of different types resolves to incorrect data
> ---
>
> Key: HIVE-14251
> URL: https://issues.apache.org/jira/browse/HIVE-14251
> Project: Hive
> Issue Type: Bug
> Components: Query Planning
>Affects Versions: 2.0.0
>Reporter: Aihua Xu
>Assignee: Aihua Xu
> Attachments: HIVE-14251.1.patch
>
>
> create table src(c1 date, c2 int, c3 double);
> insert into src values ('2016-01-01',5,1.25);
> select * from
> (select c1 from src union all
> select c2 from src union all
> select c3 from src) t;
> It will return NULL for the c1 values. Seems the common data type is resolved
> to the last c3 which is double.
--
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[jira] [Updated] (HIVE-14251) Union All of different types resolves to incorrect data
[
https://issues.apache.org/jira/browse/HIVE-14251?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Aihua Xu updated HIVE-14251:
Attachment: (was: HIVE-14251.1.patch)
> Union All of different types resolves to incorrect data
> ---
>
> Key: HIVE-14251
> URL: https://issues.apache.org/jira/browse/HIVE-14251
> Project: Hive
> Issue Type: Bug
> Components: Query Planning
>Affects Versions: 2.0.0
>Reporter: Aihua Xu
>Assignee: Aihua Xu
> Attachments: HIVE-14251.1.patch
>
>
> create table src(c1 date, c2 int, c3 double);
> insert into src values ('2016-01-01',5,1.25);
> select * from
> (select c1 from src union all
> select c2 from src union all
> select c3 from src) t;
> It will return NULL for the c1 values. Seems the common data type is resolved
> to the last c3 which is double.
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[jira] [Updated] (HIVE-14251) Union All of different types resolves to incorrect data
[
https://issues.apache.org/jira/browse/HIVE-14251?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Aihua Xu updated HIVE-14251:
Attachment: HIVE-14251.1.patch
> Union All of different types resolves to incorrect data
> ---
>
> Key: HIVE-14251
> URL: https://issues.apache.org/jira/browse/HIVE-14251
> Project: Hive
> Issue Type: Bug
> Components: Query Planning
>Affects Versions: 2.0.0
>Reporter: Aihua Xu
>Assignee: Aihua Xu
> Attachments: HIVE-14251.1.patch
>
>
> create table src(c1 date, c2 int, c3 double);
> insert into src values ('2016-01-01',5,1.25);
> select * from
> (select c1 from src union all
> select c2 from src union all
> select c3 from src) t;
> It will return NULL for the c1 values. Seems the common data type is resolved
> to the last c3 which is double.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
[jira] [Updated] (HIVE-14251) Union All of different types resolves to incorrect data
[
https://issues.apache.org/jira/browse/HIVE-14251?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Aihua Xu updated HIVE-14251:
Affects Version/s: 2.0.0
Status: Patch Available (was: Open)
Attached patch-1: separated a new version of ImplicitConvertible() for union
from comparison since for comparison, e.g., string should convert to double,
while for union, double should convert to string.
> Union All of different types resolves to incorrect data
> ---
>
> Key: HIVE-14251
> URL: https://issues.apache.org/jira/browse/HIVE-14251
> Project: Hive
> Issue Type: Bug
> Components: Query Planning
>Affects Versions: 2.0.0
>Reporter: Aihua Xu
>Assignee: Aihua Xu
> Attachments: HIVE-14251.1.patch
>
>
> create table src(c1 date, c2 int, c3 double);
> insert into src values ('2016-01-01',5,1.25);
> select * from
> (select c1 from src union all
> select c2 from src union all
> select c3 from src) t;
> It will return NULL for the c1 values. Seems the common data type is resolved
> to the last c3 which is double.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
[jira] [Updated] (HIVE-14251) Union All of different types resolves to incorrect data
[
https://issues.apache.org/jira/browse/HIVE-14251?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Aihua Xu updated HIVE-14251:
Attachment: HIVE-14251.1.patch
> Union All of different types resolves to incorrect data
> ---
>
> Key: HIVE-14251
> URL: https://issues.apache.org/jira/browse/HIVE-14251
> Project: Hive
> Issue Type: Bug
> Components: Query Planning
>Reporter: Aihua Xu
>Assignee: Aihua Xu
> Attachments: HIVE-14251.1.patch
>
>
> create table src(c1 date, c2 int, c3 double);
> insert into src values ('2016-01-01',5,1.25);
> select * from
> (select c1 from src union all
> select c2 from src union all
> select c3 from src) t;
> It will return NULL for the c1 values. Seems the common data type is resolved
> to the last c3 which is double.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
