[jira] Updated: (PIG-877) Push up filter does not account for added columns in foreach
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https://issues.apache.org/jira/browse/PIG-877?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Santhosh Srinivasan updated PIG-877:
Status: Patch Available (was: Open)
Push up filter does not account for added columns in foreach
Key: PIG-877
URL: https://issues.apache.org/jira/browse/PIG-877
Project: Pig
Issue Type: Bug
Affects Versions: 0.3.1
Reporter: Santhosh Srinivasan
Assignee: Santhosh Srinivasan
Fix For: 0.3.1
Attachments: PIG-877.patch
If a filter follows a foreach that produces an added column then push up
filter fails with a null pointer exception.
{code}
...
x = foreach w generate $0, COUNT($1);
y = filter x by $1 10;
{code}
In the above example, the column in the filter's expression is an added
column. As a result, the optimizer rule is not able to map it back to the
input resulting in a null value. The subsequent for loop is failing due to
NPE.
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[jira] Updated: (PIG-877) Push up filter does not account for added columns in foreach
[
https://issues.apache.org/jira/browse/PIG-877?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Santhosh Srinivasan updated PIG-877:
Attachment: PIG-877.patch
Attached patch fixes the NPE.
Push up filter does not account for added columns in foreach
Key: PIG-877
URL: https://issues.apache.org/jira/browse/PIG-877
Project: Pig
Issue Type: Bug
Affects Versions: 0.3.1
Reporter: Santhosh Srinivasan
Assignee: Santhosh Srinivasan
Fix For: 0.3.1
Attachments: PIG-877.patch
If a filter follows a foreach that produces an added column then push up
filter fails with a null pointer exception.
{code}
...
x = foreach w generate $0, COUNT($1);
y = filter x by $1 10;
{code}
In the above example, the column in the filter's expression is an added
column. As a result, the optimizer rule is not able to map it back to the
input resulting in a null value. The subsequent for loop is failing due to
NPE.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
