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Posted to dev@pig.apache.org by "Pradeep Kamath (JIRA)" <ji...@apache.org> on 2010/01/13 00:32:54 UTC
[jira] Created: (PIG-1184) PruneColumns optimization does not
handle the case of foreach flatten correctly if flattened bag is not used
later
PruneColumns optimization does not handle the case of foreach flatten correctly if flattened bag is not used later
------------------------------------------------------------------------------------------------------------------
Key: PIG-1184
URL: https://issues.apache.org/jira/browse/PIG-1184
Project: Pig
Issue Type: Bug
Affects Versions: 0.6.0
Reporter: Pradeep Kamath
The following script :
{noformat}
-e "a = load 'input.txt' as (f1:chararray, f2:chararray, f3:bag{t:tuple(id:chararray)}, f4:bag{t:tuple(loc:chararray)}); b = foreach a generate f1, f2, flatten(f3), flatten(f4), 10; b = foreach b generate f1, f2, \$4; dump b;"
{noformat}
gives the following result:
(oiue,M,10)
{noformat}
cat input.txt:
oiue M {(3),(4)} {(toronto),(montreal)}
{noformat}
If PruneColumns optimizations is disabled, we get the right result:
(oiue,M,10)
(oiue,M,10)
(oiue,M,10)
(oiue,M,10)
The flatten results in 4 records - so the output should contain 4 records.
--
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[jira] Updated: (PIG-1184) PruneColumns optimization does not
handle the case of foreach flatten correctly if flattened bag is not used
later
Posted by "Daniel Dai (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/PIG-1184?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Daniel Dai updated PIG-1184:
----------------------------
Attachment: PIG-1184-2.patch
Fix unit test failures
> PruneColumns optimization does not handle the case of foreach flatten correctly if flattened bag is not used later
> ------------------------------------------------------------------------------------------------------------------
>
> Key: PIG-1184
> URL: https://issues.apache.org/jira/browse/PIG-1184
> Project: Pig
> Issue Type: Bug
> Affects Versions: 0.6.0
> Reporter: Pradeep Kamath
> Assignee: Daniel Dai
> Fix For: 0.7.0
>
> Attachments: PIG-1184-1.patch, PIG-1184-2.patch
>
>
> The following script :
> {noformat}
> -e "a = load 'input.txt' as (f1:chararray, f2:chararray, f3:bag{t:tuple(id:chararray)}, f4:bag{t:tuple(loc:chararray)}); b = foreach a generate f1, f2, flatten(f3), flatten(f4), 10; b = foreach b generate f1, f2, \$4; dump b;"
> {noformat}
> gives the following result:
> (oiue,M,10)
> {noformat}
> cat input.txt:
> oiue M {(3),(4)} {(toronto),(montreal)}
> {noformat}
> If PruneColumns optimizations is disabled, we get the right result:
> (oiue,M,10)
> (oiue,M,10)
> (oiue,M,10)
> (oiue,M,10)
> The flatten results in 4 records - so the output should contain 4 records.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
[jira] Updated: (PIG-1184) PruneColumns optimization does not
handle the case of foreach flatten correctly if flattened bag is not used
later
Posted by "Daniel Dai (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/PIG-1184?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Daniel Dai updated PIG-1184:
----------------------------
Resolution: Fixed
Hadoop Flags: [Reviewed]
Status: Resolved (was: Patch Available)
Patch committed.
> PruneColumns optimization does not handle the case of foreach flatten correctly if flattened bag is not used later
> ------------------------------------------------------------------------------------------------------------------
>
> Key: PIG-1184
> URL: https://issues.apache.org/jira/browse/PIG-1184
> Project: Pig
> Issue Type: Bug
> Affects Versions: 0.6.0
> Reporter: Pradeep Kamath
> Assignee: Daniel Dai
> Fix For: 0.7.0
>
> Attachments: PIG-1184-1.patch, PIG-1184-2.patch
>
>
> The following script :
> {noformat}
> -e "a = load 'input.txt' as (f1:chararray, f2:chararray, f3:bag{t:tuple(id:chararray)}, f4:bag{t:tuple(loc:chararray)}); b = foreach a generate f1, f2, flatten(f3), flatten(f4), 10; b = foreach b generate f1, f2, \$4; dump b;"
> {noformat}
> gives the following result:
> (oiue,M,10)
> {noformat}
> cat input.txt:
> oiue M {(3),(4)} {(toronto),(montreal)}
> {noformat}
> If PruneColumns optimizations is disabled, we get the right result:
> (oiue,M,10)
> (oiue,M,10)
> (oiue,M,10)
> (oiue,M,10)
> The flatten results in 4 records - so the output should contain 4 records.
--
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You can reply to this email to add a comment to the issue online.
[jira] Commented: (PIG-1184) PruneColumns optimization does not
handle the case of foreach flatten correctly if flattened bag is not used
later
Posted by "Hadoop QA (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/PIG-1184?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12803637#action_12803637 ]
Hadoop QA commented on PIG-1184:
--------------------------------
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12430919/PIG-1184-1.patch
against trunk revision 901900.
+1 @author. The patch does not contain any @author tags.
+1 tests included. The patch appears to include 3 new or modified tests.
+1 javadoc. The javadoc tool did not generate any warning messages.
+1 javac. The applied patch does not increase the total number of javac compiler warnings.
+1 findbugs. The patch does not introduce any new Findbugs warnings.
+1 release audit. The applied patch does not increase the total number of release audit warnings.
-1 core tests. The patch failed core unit tests.
+1 contrib tests. The patch passed contrib unit tests.
Test results: http://hudson.zones.apache.org/hudson/job/Pig-Patch-h7.grid.sp2.yahoo.net/171/testReport/
Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Pig-Patch-h7.grid.sp2.yahoo.net/171/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output: http://hudson.zones.apache.org/hudson/job/Pig-Patch-h7.grid.sp2.yahoo.net/171/console
This message is automatically generated.
> PruneColumns optimization does not handle the case of foreach flatten correctly if flattened bag is not used later
> ------------------------------------------------------------------------------------------------------------------
>
> Key: PIG-1184
> URL: https://issues.apache.org/jira/browse/PIG-1184
> Project: Pig
> Issue Type: Bug
> Affects Versions: 0.6.0
> Reporter: Pradeep Kamath
> Assignee: Daniel Dai
> Fix For: 0.7.0
>
> Attachments: PIG-1184-1.patch
>
>
> The following script :
> {noformat}
> -e "a = load 'input.txt' as (f1:chararray, f2:chararray, f3:bag{t:tuple(id:chararray)}, f4:bag{t:tuple(loc:chararray)}); b = foreach a generate f1, f2, flatten(f3), flatten(f4), 10; b = foreach b generate f1, f2, \$4; dump b;"
> {noformat}
> gives the following result:
> (oiue,M,10)
> {noformat}
> cat input.txt:
> oiue M {(3),(4)} {(toronto),(montreal)}
> {noformat}
> If PruneColumns optimizations is disabled, we get the right result:
> (oiue,M,10)
> (oiue,M,10)
> (oiue,M,10)
> (oiue,M,10)
> The flatten results in 4 records - so the output should contain 4 records.
--
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You can reply to this email to add a comment to the issue online.
[jira] Assigned: (PIG-1184) PruneColumns optimization does not
handle the case of foreach flatten correctly if flattened bag is not used
later
Posted by "Daniel Dai (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/PIG-1184?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Daniel Dai reassigned PIG-1184:
-------------------------------
Assignee: Daniel Dai
> PruneColumns optimization does not handle the case of foreach flatten correctly if flattened bag is not used later
> ------------------------------------------------------------------------------------------------------------------
>
> Key: PIG-1184
> URL: https://issues.apache.org/jira/browse/PIG-1184
> Project: Pig
> Issue Type: Bug
> Affects Versions: 0.6.0
> Reporter: Pradeep Kamath
> Assignee: Daniel Dai
> Attachments: PIG-1184-1.patch
>
>
> The following script :
> {noformat}
> -e "a = load 'input.txt' as (f1:chararray, f2:chararray, f3:bag{t:tuple(id:chararray)}, f4:bag{t:tuple(loc:chararray)}); b = foreach a generate f1, f2, flatten(f3), flatten(f4), 10; b = foreach b generate f1, f2, \$4; dump b;"
> {noformat}
> gives the following result:
> (oiue,M,10)
> {noformat}
> cat input.txt:
> oiue M {(3),(4)} {(toronto),(montreal)}
> {noformat}
> If PruneColumns optimizations is disabled, we get the right result:
> (oiue,M,10)
> (oiue,M,10)
> (oiue,M,10)
> (oiue,M,10)
> The flatten results in 4 records - so the output should contain 4 records.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
[jira] Updated: (PIG-1184) PruneColumns optimization does not
handle the case of foreach flatten correctly if flattened bag is not used
later
Posted by "Daniel Dai (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/PIG-1184?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Daniel Dai updated PIG-1184:
----------------------------
Hadoop Flags: (was: [Reviewed])
Status: Patch Available (was: Reopened)
> PruneColumns optimization does not handle the case of foreach flatten correctly if flattened bag is not used later
> ------------------------------------------------------------------------------------------------------------------
>
> Key: PIG-1184
> URL: https://issues.apache.org/jira/browse/PIG-1184
> Project: Pig
> Issue Type: Bug
> Affects Versions: 0.6.0
> Reporter: Pradeep Kamath
> Assignee: Daniel Dai
> Fix For: 0.7.0
>
> Attachments: PIG-1184-1.patch, PIG-1184-2.patch
>
>
> The following script :
> {noformat}
> -e "a = load 'input.txt' as (f1:chararray, f2:chararray, f3:bag{t:tuple(id:chararray)}, f4:bag{t:tuple(loc:chararray)}); b = foreach a generate f1, f2, flatten(f3), flatten(f4), 10; b = foreach b generate f1, f2, \$4; dump b;"
> {noformat}
> gives the following result:
> (oiue,M,10)
> {noformat}
> cat input.txt:
> oiue M {(3),(4)} {(toronto),(montreal)}
> {noformat}
> If PruneColumns optimizations is disabled, we get the right result:
> (oiue,M,10)
> (oiue,M,10)
> (oiue,M,10)
> (oiue,M,10)
> The flatten results in 4 records - so the output should contain 4 records.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
[jira] Commented: (PIG-1184) PruneColumns optimization does not
handle the case of foreach flatten correctly if flattened bag is not used
later
Posted by "Pradeep Kamath (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/PIG-1184?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12803429#action_12803429 ]
Pradeep Kamath commented on PIG-1184:
-------------------------------------
+1
> PruneColumns optimization does not handle the case of foreach flatten correctly if flattened bag is not used later
> ------------------------------------------------------------------------------------------------------------------
>
> Key: PIG-1184
> URL: https://issues.apache.org/jira/browse/PIG-1184
> Project: Pig
> Issue Type: Bug
> Affects Versions: 0.6.0
> Reporter: Pradeep Kamath
> Assignee: Daniel Dai
> Fix For: 0.7.0
>
> Attachments: PIG-1184-1.patch
>
>
> The following script :
> {noformat}
> -e "a = load 'input.txt' as (f1:chararray, f2:chararray, f3:bag{t:tuple(id:chararray)}, f4:bag{t:tuple(loc:chararray)}); b = foreach a generate f1, f2, flatten(f3), flatten(f4), 10; b = foreach b generate f1, f2, \$4; dump b;"
> {noformat}
> gives the following result:
> (oiue,M,10)
> {noformat}
> cat input.txt:
> oiue M {(3),(4)} {(toronto),(montreal)}
> {noformat}
> If PruneColumns optimizations is disabled, we get the right result:
> (oiue,M,10)
> (oiue,M,10)
> (oiue,M,10)
> (oiue,M,10)
> The flatten results in 4 records - so the output should contain 4 records.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
[jira] Updated: (PIG-1184) PruneColumns optimization does not
handle the case of foreach flatten correctly if flattened bag is not used
later
Posted by "Daniel Dai (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/PIG-1184?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Daniel Dai updated PIG-1184:
----------------------------
Resolution: Fixed
Hadoop Flags: [Reviewed]
Status: Resolved (was: Patch Available)
Patch committed.
> PruneColumns optimization does not handle the case of foreach flatten correctly if flattened bag is not used later
> ------------------------------------------------------------------------------------------------------------------
>
> Key: PIG-1184
> URL: https://issues.apache.org/jira/browse/PIG-1184
> Project: Pig
> Issue Type: Bug
> Affects Versions: 0.6.0
> Reporter: Pradeep Kamath
> Assignee: Daniel Dai
> Fix For: 0.7.0
>
> Attachments: PIG-1184-1.patch
>
>
> The following script :
> {noformat}
> -e "a = load 'input.txt' as (f1:chararray, f2:chararray, f3:bag{t:tuple(id:chararray)}, f4:bag{t:tuple(loc:chararray)}); b = foreach a generate f1, f2, flatten(f3), flatten(f4), 10; b = foreach b generate f1, f2, \$4; dump b;"
> {noformat}
> gives the following result:
> (oiue,M,10)
> {noformat}
> cat input.txt:
> oiue M {(3),(4)} {(toronto),(montreal)}
> {noformat}
> If PruneColumns optimizations is disabled, we get the right result:
> (oiue,M,10)
> (oiue,M,10)
> (oiue,M,10)
> (oiue,M,10)
> The flatten results in 4 records - so the output should contain 4 records.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
[jira] Updated: (PIG-1184) PruneColumns optimization does not
handle the case of foreach flatten correctly if flattened bag is not used
later
Posted by "Daniel Dai (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/PIG-1184?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Daniel Dai updated PIG-1184:
----------------------------
Attachment: PIG-1184-1.patch
> PruneColumns optimization does not handle the case of foreach flatten correctly if flattened bag is not used later
> ------------------------------------------------------------------------------------------------------------------
>
> Key: PIG-1184
> URL: https://issues.apache.org/jira/browse/PIG-1184
> Project: Pig
> Issue Type: Bug
> Affects Versions: 0.6.0
> Reporter: Pradeep Kamath
> Assignee: Daniel Dai
> Attachments: PIG-1184-1.patch
>
>
> The following script :
> {noformat}
> -e "a = load 'input.txt' as (f1:chararray, f2:chararray, f3:bag{t:tuple(id:chararray)}, f4:bag{t:tuple(loc:chararray)}); b = foreach a generate f1, f2, flatten(f3), flatten(f4), 10; b = foreach b generate f1, f2, \$4; dump b;"
> {noformat}
> gives the following result:
> (oiue,M,10)
> {noformat}
> cat input.txt:
> oiue M {(3),(4)} {(toronto),(montreal)}
> {noformat}
> If PruneColumns optimizations is disabled, we get the right result:
> (oiue,M,10)
> (oiue,M,10)
> (oiue,M,10)
> (oiue,M,10)
> The flatten results in 4 records - so the output should contain 4 records.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
[jira] Updated: (PIG-1184) PruneColumns optimization does not
handle the case of foreach flatten correctly if flattened bag is not used
later
Posted by "Daniel Dai (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/PIG-1184?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Daniel Dai updated PIG-1184:
----------------------------
Fix Version/s: 0.7.0
Status: Patch Available (was: Open)
> PruneColumns optimization does not handle the case of foreach flatten correctly if flattened bag is not used later
> ------------------------------------------------------------------------------------------------------------------
>
> Key: PIG-1184
> URL: https://issues.apache.org/jira/browse/PIG-1184
> Project: Pig
> Issue Type: Bug
> Affects Versions: 0.6.0
> Reporter: Pradeep Kamath
> Assignee: Daniel Dai
> Fix For: 0.7.0
>
> Attachments: PIG-1184-1.patch
>
>
> The following script :
> {noformat}
> -e "a = load 'input.txt' as (f1:chararray, f2:chararray, f3:bag{t:tuple(id:chararray)}, f4:bag{t:tuple(loc:chararray)}); b = foreach a generate f1, f2, flatten(f3), flatten(f4), 10; b = foreach b generate f1, f2, \$4; dump b;"
> {noformat}
> gives the following result:
> (oiue,M,10)
> {noformat}
> cat input.txt:
> oiue M {(3),(4)} {(toronto),(montreal)}
> {noformat}
> If PruneColumns optimizations is disabled, we get the right result:
> (oiue,M,10)
> (oiue,M,10)
> (oiue,M,10)
> (oiue,M,10)
> The flatten results in 4 records - so the output should contain 4 records.
--
This message is automatically generated by JIRA.
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You can reply to this email to add a comment to the issue online.
[jira] Reopened: (PIG-1184) PruneColumns optimization does not
handle the case of foreach flatten correctly if flattened bag is not used
later
Posted by "Daniel Dai (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/PIG-1184?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Daniel Dai reopened PIG-1184:
-----------------------------
Still need to address core test failures.
> PruneColumns optimization does not handle the case of foreach flatten correctly if flattened bag is not used later
> ------------------------------------------------------------------------------------------------------------------
>
> Key: PIG-1184
> URL: https://issues.apache.org/jira/browse/PIG-1184
> Project: Pig
> Issue Type: Bug
> Affects Versions: 0.6.0
> Reporter: Pradeep Kamath
> Assignee: Daniel Dai
> Fix For: 0.7.0
>
> Attachments: PIG-1184-1.patch
>
>
> The following script :
> {noformat}
> -e "a = load 'input.txt' as (f1:chararray, f2:chararray, f3:bag{t:tuple(id:chararray)}, f4:bag{t:tuple(loc:chararray)}); b = foreach a generate f1, f2, flatten(f3), flatten(f4), 10; b = foreach b generate f1, f2, \$4; dump b;"
> {noformat}
> gives the following result:
> (oiue,M,10)
> {noformat}
> cat input.txt:
> oiue M {(3),(4)} {(toronto),(montreal)}
> {noformat}
> If PruneColumns optimizations is disabled, we get the right result:
> (oiue,M,10)
> (oiue,M,10)
> (oiue,M,10)
> (oiue,M,10)
> The flatten results in 4 records - so the output should contain 4 records.
--
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You can reply to this email to add a comment to the issue online.
[jira] Commented: (PIG-1184) PruneColumns optimization does not
handle the case of foreach flatten correctly if flattened bag is not used
later
Posted by "Hadoop QA (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/PIG-1184?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12804449#action_12804449 ]
Hadoop QA commented on PIG-1184:
--------------------------------
+1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12431277/PIG-1184-2.patch
against trunk revision 902253.
+1 @author. The patch does not contain any @author tags.
+1 tests included. The patch appears to include 3 new or modified tests.
+1 javadoc. The javadoc tool did not generate any warning messages.
+1 javac. The applied patch does not increase the total number of javac compiler warnings.
+1 findbugs. The patch does not introduce any new Findbugs warnings.
+1 release audit. The applied patch does not increase the total number of release audit warnings.
+1 core tests. The patch passed core unit tests.
+1 contrib tests. The patch passed contrib unit tests.
Test results: http://hudson.zones.apache.org/hudson/job/Pig-Patch-h8.grid.sp2.yahoo.net/189/testReport/
Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Pig-Patch-h8.grid.sp2.yahoo.net/189/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output: http://hudson.zones.apache.org/hudson/job/Pig-Patch-h8.grid.sp2.yahoo.net/189/console
This message is automatically generated.
> PruneColumns optimization does not handle the case of foreach flatten correctly if flattened bag is not used later
> ------------------------------------------------------------------------------------------------------------------
>
> Key: PIG-1184
> URL: https://issues.apache.org/jira/browse/PIG-1184
> Project: Pig
> Issue Type: Bug
> Affects Versions: 0.6.0
> Reporter: Pradeep Kamath
> Assignee: Daniel Dai
> Fix For: 0.7.0
>
> Attachments: PIG-1184-1.patch, PIG-1184-2.patch
>
>
> The following script :
> {noformat}
> -e "a = load 'input.txt' as (f1:chararray, f2:chararray, f3:bag{t:tuple(id:chararray)}, f4:bag{t:tuple(loc:chararray)}); b = foreach a generate f1, f2, flatten(f3), flatten(f4), 10; b = foreach b generate f1, f2, \$4; dump b;"
> {noformat}
> gives the following result:
> (oiue,M,10)
> {noformat}
> cat input.txt:
> oiue M {(3),(4)} {(toronto),(montreal)}
> {noformat}
> If PruneColumns optimizations is disabled, we get the right result:
> (oiue,M,10)
> (oiue,M,10)
> (oiue,M,10)
> (oiue,M,10)
> The flatten results in 4 records - so the output should contain 4 records.
--
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You can reply to this email to add a comment to the issue online.
[jira] Closed: (PIG-1184) PruneColumns optimization does not handle
the case of foreach flatten correctly if flattened bag is not used later
Posted by "Daniel Dai (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/PIG-1184?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Daniel Dai closed PIG-1184.
---------------------------
> PruneColumns optimization does not handle the case of foreach flatten correctly if flattened bag is not used later
> ------------------------------------------------------------------------------------------------------------------
>
> Key: PIG-1184
> URL: https://issues.apache.org/jira/browse/PIG-1184
> Project: Pig
> Issue Type: Bug
> Affects Versions: 0.6.0
> Reporter: Pradeep Kamath
> Assignee: Daniel Dai
> Fix For: 0.7.0
>
> Attachments: PIG-1184-1.patch, PIG-1184-2.patch
>
>
> The following script :
> {noformat}
> -e "a = load 'input.txt' as (f1:chararray, f2:chararray, f3:bag{t:tuple(id:chararray)}, f4:bag{t:tuple(loc:chararray)}); b = foreach a generate f1, f2, flatten(f3), flatten(f4), 10; b = foreach b generate f1, f2, \$4; dump b;"
> {noformat}
> gives the following result:
> (oiue,M,10)
> {noformat}
> cat input.txt:
> oiue M {(3),(4)} {(toronto),(montreal)}
> {noformat}
> If PruneColumns optimizations is disabled, we get the right result:
> (oiue,M,10)
> (oiue,M,10)
> (oiue,M,10)
> (oiue,M,10)
> The flatten results in 4 records - so the output should contain 4 records.
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