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Yan Zhou updated PIG-1501:
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Attachment: compress_perf_data_2.txt
The data set in the last tests are small such that the performance differenc
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Yan Zhou commented on PIG-1501:
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Unless there is any objection raised in the coming week, I'll
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Yan Zhou commented on PIG-1501:
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The default is *not* using the compression on the intermediate
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Yan Zhou updated PIG-1501:
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Attachment: PIG-1501.patch
> need to investigate the impact of compression on pig performance
> -
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Yan Zhou commented on PIG-1518:
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The pseudo code of the combination op is as follows:
for each
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Yan Zhou commented on PIG-1518:
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Right, map side cogroup needs the sortness of the input, but j
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Yan Zhou commented on PIG-1501:
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Please refer to HADOOP-3315 for overall Sequence File vs TFile
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Yan Zhou commented on PIG-1518:
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During the merge process, any empty splits will be skipped. Cu
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Yan Zhou commented on PIG-1518:
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There is a bigger question at hand. The semantics of OrderedLo
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Yan Zhou commented on PIG-1518:
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Another approach is to mark splits as uncombinable only when n
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Yan Zhou commented on PIG-1518:
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One experimental result on a 15-node cluster of 2 x Xeon L5420
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Yan Zhou commented on PIG-1518:
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The formatting of the table of the last comment is a bit off:
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Yan Zhou updated PIG-1518:
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Attachment: PIG-1518.patch
> multi file input format for loaders
> ---
>
>
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Yan Zhou commented on PIG-1518:
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In summary, the split combination's controllables are through
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Yan Zhou commented on PIG-1518:
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No. It does not work inside an optimizer as logical/physical p
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Yan Zhou updated PIG-1518:
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Attachment: PIG-1518.patch
Style changes, Hudson pass, plus other minor changes. Internal Hudson results:
[exec]
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Yan Zhou updated PIG-1399:
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Attachment: PIG-1399.patch
rebased on the latest trunk.
> Logical Optimizer: Expression optimizor rule
> ---
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Yan Zhou updated PIG-1501:
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Attachment: PIG-1501.patch
the compression codec is configurable on gzip or lzo; plus some minor changes
> need
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Yan Zhou commented on PIG-1501:
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The internal Hudson results are as follows:
[exec] -1 ov
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Yan Zhou updated PIG-1399:
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Attachment: PIG-1399.patch
Internal Hudson results:
[exec] +1 overall.
[exec]
[exec] +1 @auth
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Yan Zhou updated PIG-1518:
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Attachment: PIG-1518.patch
The add method if PigSplit is removed. The debug code is left to facilitate
future de
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Yan Zhou updated PIG-1518:
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Attachment: PIG-1518.patch
Fix a typo; rebase on the latest trunk.
> multi file input format for loaders
> -
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Yan Zhou updated PIG-1518:
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Status: Patch Available (was: Open)
Release Note:
Feature: combine splits of sizes smaller than the va
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Yan Zhou updated PIG-1518:
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Status: Open (was: Patch Available)
> multi file input format for loaders
> ---
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Yan Zhou updated PIG-1518:
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Status: Patch Available (was: Open)
> multi file input format for loaders
> ---
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Yan Zhou updated PIG-1518:
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Attachment: PIG-1518.patch
Minor polish of a debugging code inside comments
> multi file input format for loader
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Yan Zhou updated PIG-1501:
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Attachment: PIG-1501.patch
Address the review comments, code rebasing on the latest trunk.
> need to investigate
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Yan Zhou updated PIG-1399:
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Attachment: PIG-1399.patch
rebasing on the latest trunk
> Logical Optimizer: Expression optimizor rule
> ---
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Yan Zhou updated PIG-1518:
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Attachment: PIG-1518.patch
Improvement on logging info.
> multi file input format for loaders
>
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Yan Zhou updated PIG-1518:
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Status: Open (was: Patch Available)
> multi file input format for loaders
> ---
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Yan Zhou updated PIG-1501:
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Status: Patch Available (was: Open)
This feature will save HDFS space used to store the intermediate data used b
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Yan Zhou updated PIG-1518:
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Attachment: PIG-1518.patch
> multi file input format for loaders
> ---
>
>
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Yan Zhou updated PIG-1518:
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Attachment: PIG-1518.patch
rebased on the latest trunk
> multi file input format for loaders
> -
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Yan Zhou commented on PIG-1518:
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It is not combinable if the loader is a CollectableLoadFunc AN
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Yan Zhou commented on PIG-1518:
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MergeJoinIndexer and IndexableLoadFunc are both not combinable
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Yan Zhou commented on PIG-1518:
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In summary, the following functionalities won't see splits com
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Yan Zhou commented on PIG-1518:
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All other functionalities except for the two mentioned in the
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Yan Zhou updated PIG-1399:
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Attachment: PIG-1399.patch
Addressing the review comments except for not making several optimization rules
since
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Yan Zhou updated PIG-1399:
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Attachment: PIG-1399.patch
rebased on the latest trunk.
> Logical Optimizer: Expression optimizor rule
> ---
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Yan Zhou updated PIG-1399:
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Attachment: PIG-1399.patch
I use findbugs 1.3.9 and it finds the patch clean. The attached findbugs
results were
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Yan Zhou updated PIG-1399:
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Status: Patch Available (was: Open)
Release Note:
This logical simplification contains the following t
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Yan Zhou updated PIG-1501:
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Release Note:
This feature will save HDFS space used to store the intermediate data used by
PIG and potentially
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Yan Zhou updated PIG-1501:
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Release Note:
This feature will save HDFS space used to store the intermediate data used by
PIG and potentially
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Yan Zhou commented on PIG-1501:
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To be more eaccurate, the default compression would be gzip if
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Yan Zhou commented on PIG-366:
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Robert, first, thanks for your effort to pick up this feature.
Y
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Yan Zhou commented on PIG-366:
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Yes. But the original patch by Shubham had hooked the plugin to t
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Yan Zhou commented on PIG-366:
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One more clearification: by design example generator does not sub
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Yan Zhou resolved PIG-239.
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Fix Version/s: 0.8.0
(was: 0.9.0)
Resolution: Cannot Reproduce
Can not reproduce usi
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Yan Zhou commented on PIG-366:
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Robert,
Could you put down a step-by-step instruction on how to
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Yan Zhou commented on PIG-1628:
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+1. Patch looks good.
> log this message at debug level : 'Pi
Logical simplifier does not simplify away constants under AND and OR; after
simplificaion the ordering of operands of AND and OR may get changed
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Yan Zhou commented on PIG-1635:
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This is regarding a new feature (PIG-1399) added for 0.8.
> L
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Yan Zhou updated PIG-1635:
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Affects Version/s: 0.8.0
> Logical simplifier does not simplify away constants under AND and OR; after
> simplif
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Yan Zhou updated PIG-1635:
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Attachment: PIG-1635.patch
> Logical simplifier does not simplify away constants under AND and OR; after
> simpl
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Yan Zhou updated PIG-1635:
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Status: Patch Available (was: Open)
> Logical simplifier does not simplify away constants under AND and OR; afte
Using both small split combination and temporary file compression on a query of
ORDER BY may cause crash
Key: PIG-1645
URL: https://issues.apache.org/jira/bro
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Yan Zhou updated PIG-1518:
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Release Note:
Feature: combine splits of sizes smaller than the value of property
"pig.maxCombinedSplitSize" or,
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Yan Zhou commented on PIG-1645:
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The problem is that both RandomSampleLoader and PossionSampleL
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Yan Zhou commented on PIG-1635:
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test-patch results:
[exec] +1 overall.
[exec]
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Yan Zhou commented on PIG-1635:
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All test-core tests also run clean.
> Logical simplifier does
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Yan Zhou updated PIG-1645:
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Attachment: PIG-1645.patch
test-core passed.
test-patch results:
[exec] -1 overall.
[exec]
[exec
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Yan Zhou updated PIG-1645:
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Status: Patch Available (was: Open)
> Using both small split combination and temporary file compression on a que
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Yan Zhou commented on PIG-1645:
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The possibility of failure also depends upon the block distrib
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Yan Zhou commented on PIG-1635:
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I did a thorough check for this patch. Actually some of the or
Logical simplifier throws a NPE
---
Key: PIG-1647
URL: https://issues.apache.org/jira/browse/PIG-1647
Project: Pig
Issue Type: Bug
Affects Versions: 0.8.0
Reporter: Yan Zhou
Assignee: Y
Split combination may return too many block locations to map/reduce framework
-
Key: PIG-1648
URL: https://issues.apache.org/jira/browse/PIG-1648
Project: Pig
Issue
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Yan Zhou updated PIG-1635:
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Status: Resolved (was: Patch Available)
Resolution: Fixed
Patch committed to both trunk and the 0.8 bran
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Yan Zhou updated PIG-1647:
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Attachment: PIG-1647.patch
> Logical simplifier throws a NPE
> ---
>
>
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Yan Zhou updated PIG-1645:
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Status: Resolved (was: Patch Available)
Resolution: Fixed
Patch committed to both trunk and the 0.8 bran
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Yan Zhou updated PIG-1647:
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Attachment: PIG-1647.patch
passes test-core.
test-patch results:
[exec] +1 overall.
[exec]
[exec
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Yan Zhou updated PIG-1647:
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Status: Patch Available (was: Open)
> Logical simplifier throws a NPE
> ---
>
>
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Yan Zhou updated PIG-1647:
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Status: Resolved (was: Patch Available)
Resolution: Fixed
Patch committed to both trunk and the 0.8 bran
PIG class loading mishandled
Key: PIG-1651
URL: https://issues.apache.org/jira/browse/PIG-1651
Project: Pig
Issue Type: Bug
Affects Versions: 0.8.0
Reporter: Yan Zhou
Assignee: Richard
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Yan Zhou commented on PIG-1648:
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Top 5 locations with most data will be used. This has been agr
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Yan Zhou updated PIG-1648:
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Attachment: PIG-1648.patch
> Split combination may return too many block locations to map/reduce framework
>
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Yan Zhou commented on PIG-1648:
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test-patch results:
[exec] +1 overall.
[exec]
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Yan Zhou updated PIG-1648:
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Status: Resolved (was: Patch Available)
Resolution: Fixed
Patch committed to both trunk and the 0.8 bran
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Yan Zhou updated PIG-1648:
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Status: Patch Available (was: Open)
> Split combination may return too many block locations to map/reduce framew
ORDER BY does not work properly on integer/short keys that are -1
-
Key: PIG-1658
URL: https://issues.apache.org/jira/browse/PIG-1658
Project: Pig
Issue Type: Bug
Re
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Yan Zhou updated PIG-1658:
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Fix Version/s: 0.8.0
Affects Version/s: 0.8.0
> ORDER BY does not work properly on integer/short keys tha
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Yan Zhou reassigned PIG-1658:
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Assignee: Yan Zhou
> ORDER BY does not work properly on integer/short keys that are -1
> --
sortinfo is not set for store if there is a filter after ORDER BY
-
Key: PIG-1659
URL: https://issues.apache.org/jira/browse/PIG-1659
Project: Pig
Issue Type: Bug
Affects Ve
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Yan Zhou updated PIG-1658:
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Status: Patch Available (was: Open)
> ORDER BY does not work properly on integer/short keys that are -1
> --
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Yan Zhou updated PIG-1658:
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Attachment: PIG-1658.patch
This problem is caused by the PIG-1295 patch.
test-core pass. Zebra's nightly pass to
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https://issues.apache.org/jira/browse/PIG-1658?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yan Zhou updated PIG-1658:
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Attachment: PIG-1658.patch
Add Zebra test TestMergeJoinPartial to the "pigtest" target.
> ORDER BY does not work
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https://issues.apache.org/jira/browse/PIG-1659?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12917012#action_12917012
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Yan Zhou commented on PIG-1659:
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Need to make sure it is invoked after optimization in both old
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https://issues.apache.org/jira/browse/PIG-1658?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yan Zhou updated PIG-1658:
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Status: Resolved (was: Patch Available)
Resolution: Fixed
Committed to both trunk and the 0.8 branch.
>
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https://issues.apache.org/jira/browse/PIG-1057?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12771679#action_12771679
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Yan Zhou commented on PIG-1057:
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patch reviewed +1.
This patch will address the concern Raghu
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https://issues.apache.org/jira/browse/PIG-997?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yan Zhou updated PIG-997:
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Status: Patch Available (was: Open)
> [zebra] Sorted Table Support by Zebra
> -
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Yan Zhou reassigned PIG-997:
Assignee: Yan Zhou
> [zebra] Sorted Table Support by Zebra
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https://issues.apache.org/jira/browse/PIG-997?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yan Zhou updated PIG-997:
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Attachment: SortedTable.patch
> [zebra] Sorted Table Support by Zebra
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https://issues.apache.org/jira/browse/PIG-1026?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yan Zhou updated PIG-1026:
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Attachment: PIG_1026.patch
> [zebra] map split returns null
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https://issues.apache.org/jira/browse/PIG-1026?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12772192#action_12772192
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Yan Zhou commented on PIG-1026:
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Another problem is that during STORE, when handleMapSplit met
Order Preserving Sorted Table Union
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Key: PIG-1069
URL: https://issues.apache.org/jira/browse/PIG-1069
Project: Pig
Issue Type: New Feature
Affects Versions: 0.6.0
Reporter: Yan Zhou
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https://issues.apache.org/jira/browse/PIG-997?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yan Zhou updated PIG-997:
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Status: Open (was: Patch Available)
will resubmit patch with 18 missing release notes
> [zebra] Sorted Table Suppo
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https://issues.apache.org/jira/browse/PIG-997?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yan Zhou updated PIG-997:
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Attachment: SortedTable.patch
Add missing APACHE license agreements in 18 new source files
> [zebra] Sorted Table
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https://issues.apache.org/jira/browse/PIG-997?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yan Zhou updated PIG-997:
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Status: Patch Available (was: Open)
> [zebra] Sorted Table Support by Zebra
> -
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https://issues.apache.org/jira/browse/PIG-997?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yan Zhou updated PIG-997:
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Status: Open (was: Patch Available)
The failure is due to a misplaced test in the nightly suite. I'm going to
excl
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https://issues.apache.org/jira/browse/PIG-997?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yan Zhou updated PIG-997:
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Attachment: SortedTable.patch
> [zebra] Sorted Table Support by Zebra
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>
>
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https://issues.apache.org/jira/browse/PIG-997?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yan Zhou updated PIG-997:
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Status: Patch Available (was: Open)
> [zebra] Sorted Table Support by Zebra
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