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Krishna Kumar commented on HIVE-2623:
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Hi Rao,
I have not been able to do
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Krishna Kumar updated HIVE-2097:
Attachment: datacomp.tar.gz
unrefactored source for all the implemented compression codecs
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Krishna Kumar commented on HIVE-2623:
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I will attach cpu usage information
Reporter: Krishna Kumar
Assignee: Krishna Kumar
Priority: Minor
Any data type (int, string et al) for which the frequency of occurrences can be
counted (a.k.a. categorical or enumeration types), can be compressed via
methods such as huffman, arithmetic and ppm compressors
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Krishna Kumar updated HIVE-2623:
Status: Patch Available (was: Open)
> Add Integer type compress
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Krishna Kumar commented on HIVE-2623:
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Compression efficiency stats (unary is opt
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Krishna Kumar updated HIVE-2623:
Attachment: (was: steppedpowerlawTimestamp.gz)
> Add Integer type compress
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Krishna Kumar updated HIVE-2623:
Attachment: data.tar.gz
Artificial data sets for the 8 integer compressors.
>
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Krishna Kumar updated HIVE-2623:
Attachment: (was: steppedpowerlaw1S.gz)
> Add Integer type compress
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Krishna Kumar updated HIVE-2623:
Attachment: (was: steppedpowerlaw2S.gz)
> Add Integer type compress
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Krishna Kumar updated HIVE-2623:
Attachment: (was: steppedpowerlawIQ.gz)
> Add Integer type compress
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Krishna Kumar updated HIVE-2623:
Attachment: HIVE-2623.v2.patch
Added another simple integer coder (unary) and the four variants of
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Krishna Kumar updated HIVE-2604:
Component/s: (was: Query Processor)
(was: Serializers/Deserializers
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Krishna Kumar updated HIVE-2623:
Component/s: (was: Query Processor)
(was: Serializers/Deserializers
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Krishna Kumar updated HIVE-2604:
Attachment: HIVE-2604.v2.patch
> Add UberCompressor Serde/Codec to contrib which allows
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Krishna Kumar commented on HIVE-2604:
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:) I used the word Uber, not in the sens
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Krishna Kumar updated HIVE-2600:
Status: Patch Available (was: Open)
> Enable/Add type-specific compression for rcf
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Krishna Kumar updated HIVE-2604:
Status: Patch Available (was: Open)
> Add UberCompressor Serde/Codec to contrib which all
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Krishna Kumar updated HIVE-2604:
Attachment: HIVE-2604.v1.patch
Serde wraps lazysimpleserde to make it more similar to columnarserde
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Krishna Kumar commented on HIVE-2623:
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RCFile size stats:
gzip/bzip2/
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Krishna Kumar updated HIVE-2623:
Attachment: HIVE-2623.v1.patch
Added 3 three more elias gamma compressors - so now supporting one
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Krishna Kumar updated HIVE-2623:
Attachment: steppedpowerlawTimestamp.gz
steppedpowerlawIQ.gz
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Krishna Kumar updated HIVE-2623:
Attachment: (was: steppedpowerlaw.gz)
> Add Integer type compress
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Krishna Kumar commented on HIVE-2604:
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The current implementation works as fol
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Krishna Kumar commented on HIVE-2600:
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He Yongqiang,
In UberCompressor, I have
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Krishna Kumar updated HIVE-2623:
Attachment: steppedpowerlaw.gz
Synthetic data for elias gamma.
Storage size when stored as rc
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Krishna Kumar updated HIVE-2623:
Attachment: HIVE-2623.v0.patch
Elias gamma for a two-sided distribution. Draft only - tests and one
Add Integer type compressors
Key: HIVE-2623
URL: https://issues.apache.org/jira/browse/HIVE-2623
Project: Hive
Issue Type: Sub-task
Reporter: Krishna Kumar
Assignee: Krishna Kumar
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Krishna Kumar commented on HIVE-2600:
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That is part of the compression codec
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Krishna Kumar commented on HIVE-2600:
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I have chosen to record that information in
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Krishna Kumar updated HIVE-2600:
Attachment: HIVE-2600.v1.patch
Added logging to report every column's total le
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Krishna Kumar commented on HIVE-2097:
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Thanks Alex for the suggestions.
Just t
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Krishna Kumar commented on HIVE-2604:
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Sure. I'll add some of the compressors
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Krishna Kumar reassigned HIVE-2604:
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Assignee: Krishna Kumar
> Add UberCompressor Serde/Codec to contrib which allows
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Krishna Kumar commented on HIVE-2600:
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Added the code for uber codec/serde to
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Krishna Kumar updated HIVE-2604:
Attachment: HIVE-2604.v0.patch
initial version of the patch.
> Add UberCompres
Project: Hive
Issue Type: Sub-task
Reporter: Krishna Kumar
The strategies supported are
1. using a specified codec on the column
2. using a specific codec on the column which is serialized via a specific serde
3. using a specific "TypeSpecificCompressor" instanc
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Krishna Kumar commented on HIVE-2600:
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This should be usable for any rcfile data.
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Krishna Kumar updated HIVE-2600:
Status: Patch Available (was: Open)
> Enable/Add type-specific compression for rcf
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Krishna Kumar updated HIVE-2600:
Attachment: HIVE-2600.v0.patch
Added two interfaces and invocations at appropriate places
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Krishna Kumar updated HIVE-2600:
Description:
Enable schema-aware compression codecs which can perform type-specific
compression on
, Serializers/Deserializers
Reporter: Krishna Kumar
Assignee: Krishna Kumar
Priority: Minor
Enable schema-aware compression codecs which can perform type-specific
compression on a per-column basis. I see this as in three-parts
1. Add interfaces for the rcfile to
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Krishna Kumar updated HIVE-2413:
Attachment: HIVE-2413.v1.patch
Empty string not handled correctly in JC so handling it here
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Krishna Kumar updated HIVE-2417:
Attachment: HIVE-2417.v1.patch
Test changed after review comments
- default codec instead of bzip2
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Krishna Kumar commented on HIVE-2417:
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Yes, the test is designed to produce the e
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Krishna Kumar updated HIVE-2413:
Assignee: Krishna Kumar
Status: Patch Available (was: Open)
> BlockMergeTask ignores cli
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Krishna Kumar updated HIVE-2417:
Status: Patch Available (was: Open)
> Merging of compressed rcfiles fails to write the valuebuf
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Krishna Kumar updated HIVE-2417:
Attachment: HIVE-2417.v0.patch
Test added
> Merging of compressed rcfiles fails to write
Type: Bug
Components: Query Processor
Reporter: Krishna Kumar
Assignee: Krishna Kumar
Attachments: HIVE-2417.v0.patch
The blockmerge task does not create proper rc files when merging compressed rc
files as the valuebuffer writing is incorrect.
--
This
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Krishna Kumar updated HIVE-2413:
Attachment: HIVE-2413.v0.patch
Here is a simple fix which works for me, though there may be better
Reporter: Krishna Kumar
Priority: Minor
User-specified jars are not added to the hadoop tasks while executing a
BlockMergeTask resulting in a ClassNotFoundException.
--
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For more information on JIRA, see: http://www.atlassian.com/software
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Krishna Kumar updated HIVE-2384:
Attachment: HIVE-2384.v0.patch
Patch with tests
> import of multiple partitions from a partitio
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Krishna Kumar updated HIVE-2384:
Assignee: Krishna Kumar
Status: Patch Available (was: Open)
> import of multiple partiti
Project: Hive
Issue Type: Bug
Components: Query Processor
Reporter: Krishna Kumar
when we import multiple partitions from an exported partitioned table, if we
import it with a specified external location, then the partitions end up
overwriting.
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This
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Krishna Kumar commented on HIVE-956:
Common code moved to a base class to
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Krishna Kumar updated HIVE-956:
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Attachment: HIVE-956v4.patch
Please note that HIVE-2209 is a pre-requisite for this patch.
>
Any reason why persistent stores such as jdbc and hbase are supported for
temporary stats storage IIUC, but hadoop counters were not used for the tasks
to 'publish' their stats for the aggregation task to pick it up from?
Cheers,
Krishna
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Krishna Kumar updated HIVE-956:
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Status: Patch Available (was: Open)
I have tested the setting of rawDataSize with a "ANALYZE
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Krishna Kumar updated HIVE-956:
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Attachment: HIVE-956v3.patch
After separating mapcomparer changes to its own jira/patch - HIVE-2209
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Krishna Kumar updated HIVE-2209:
Attachment: HIVE-2209v2.patch
Fixed a lowercase/uppercase typo in the test classes
> Provide a
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Krishna Kumar updated HIVE-2209:
Attachment: HIVE2209v1.patch
Added another implementation with sorting of the keys
> Provide a
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Krishna Kumar commented on HIVE-2209:
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He Yongqiang,
Can you take a look at this
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Krishna Kumar updated HIVE-2209:
Status: Patch Available (was: Open)
For review by He Yongqiang
> Provide a way by wh
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Krishna Kumar updated HIVE-2209:
Attachment: HIVE-2209v0.patch
Patch, with tests, added.
> Provide a way by wh
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Krishna Kumar updated HIVE-2209:
Issue Type: Improvement (was: Sub-task)
Parent: (was: HIVE-956)
> Provide a way
URL: https://issues.apache.org/jira/browse/HIVE-2209
Project: Hive
Issue Type: Sub-task
Reporter: Krishna Kumar
Assignee: Krishna Kumar
Priority: Minor
Now ObjectInspectorUtils.compare throws an exception if a map is contained
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Krishna Kumar commented on HIVE-956:
bq. can warnedOnceNullMapKey be removed?
I
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Krishna Kumar updated HIVE-956:
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Attachment: HIVE.956.patch.2
Re-ordering my responses;
bq. can LazyBinaryColumnarSerDe share some
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Krishna Kumar commented on HIVE-956:
Re-ordering my responses;
bq.
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Krishna Kumar updated HIVE-956:
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Attachment: HIVE.956.patch.1
Patch with a change on how null vs empty strings are handled. This patch
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Krishna Kumar updated HIVE-956:
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Status: Patch Available (was: Open)
> Add support of columnar binary se
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Krishna Kumar commented on HIVE-956:
Review board: https://reviews.apache.org/r
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Krishna Kumar commented on HIVE-956:
Initial patch for lazy binary columnar s
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Krishna Kumar updated HIVE-956:
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Attachment: HIVE.956.patch.0
Initial patch for lazy binary columnar serde. Reuses elements of columnar
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Krishna Kumar commented on HIVE-2065:
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The minor version is needed so that we
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Krishna Kumar updated HIVE-2098:
Status: Patch Available (was: Open)
> Make couple of convenience methods in EximUtil pub
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Krishna Kumar updated HIVE-2098:
Attachment: HIVE.2098.patch.0.txt
Couple of methods made public for use outside of the package
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Krishna Kumar reassigned HIVE-2098:
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Assignee: Krishna Kumar
> Make couple of convenience methods in EximUtil pub
Make couple of convenience methods in EximUtil public
-
Key: HIVE-2098
URL: https://issues.apache.org/jira/browse/HIVE-2098
Project: Hive
Issue Type: Bug
Reporter: Krishna
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Krishna Kumar updated HIVE-2071:
Attachment: HIVE.2071.patch.0.txt
Tentative patch to show the implementation for the sessionstate
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Krishna Kumar commented on HIVE-2097:
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Comment hijacked from HIVE-2065:
He Yongq
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Krishna Kumar reassigned HIVE-2097:
---
Assignee: Krishna Kumar
> Explore mechanisms for better compression with RC Fi
: Query Processor, Serializers/Deserializers
Reporter: Krishna Kumar
Priority: Minor
Optimization of the compression mechanisms used by RC File to be explored.
Some initial ideas
1. More efficient serialization/deserialization based on type-specific and
storage-specific
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Krishna Kumar commented on HIVE-2065:
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Updated patch where sequence file complianc
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Krishna Kumar updated HIVE-2065:
Attachment: HIVE.2065.patch.1.txt
Updated patch where sequence file compliance is not addressed but
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Krishna Kumar commented on HIVE-2065:
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As I indicated, the reason I made changes
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Krishna Kumar commented on HIVE-2065:
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The RCFile layout seems to have been desi
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Krishna Kumar updated HIVE-2065:
Status: Patch Available (was: Open)
> RCFile issues
> -
>
>
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Krishna Kumar commented on HIVE-2071:
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Namit,
While we can read the config vari
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Krishna Kumar commented on HIVE-2065:
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Review Board Entry at h
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Krishna Kumar updated HIVE-2065:
Attachment: HIVE.2065.patch.0.txt
Patch. Since it contains binary files, it was generated with
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Krishna Kumar updated HIVE-2065:
Attachment: proposal.png
The layout as implemented in the attached patch
> RCFile iss
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Krishna Kumar updated HIVE-2065:
Attachment: (was: proposal.png)
> RCFile issues
> -
>
>
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Krishna Kumar commented on HIVE-2065:
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Hmm. #3 is taking me a bit too far th
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Krishna Kumar updated HIVE-2003:
Status: Patch Available (was: Open)
Please review asap as there are lots of changes to q.out files
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Krishna Kumar commented on HIVE-2003:
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For #4 above, I have taken now the
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Krishna Kumar commented on HIVE-2003:
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Added to review board: h
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Krishna Kumar updated HIVE-2003:
Attachment: HIVE-2003.patch.1.txt
Regenerated the patch.
> LOAD compilation does not set
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Krishna Kumar updated HIVE-2065:
Attachment: proposal.png
Notation : Length bracket inside the dashed box means it is the
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Krishna Kumar commented on HIVE-2065:
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So should I go ahead and fix #2 and #3 as
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