[jira] [Commented] (HIVE-7384) Research into reduce-side join [Spark Branch]

2014-08-21 Thread Lianhui Wang (JIRA)
[ https://issues.apache.org/jira/browse/HIVE-7384?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14106407#comment-14106407 ] Lianhui Wang commented on HIVE-7384: i think the thoughts is same as ideas that

[jira] [Commented] (HIVE-7384) Research into reduce-side join [Spark Branch]

2014-08-21 Thread Lianhui Wang (JIRA)
[ https://issues.apache.org/jira/browse/HIVE-7384?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14106343#comment-14106343 ] Lianhui Wang commented on HIVE-7384: @Szehon Ho yes,i read OrderedRDDFunctions

[jira] [Commented] (HIVE-7384) Research into reduce-side join [Spark Branch]

2014-08-21 Thread Lianhui Wang (JIRA)
[ https://issues.apache.org/jira/browse/HIVE-7384?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14105301#comment-14105301 ] Lianhui Wang commented on HIVE-7384: i think current spark already support has

Re: Hive insert overwrite strange behavior

2014-07-20 Thread Lianhui Wang
es two seconds, but the first > one submit a MR job, which has one reduce. > > why there is such difference? Thanks. > -- thanks 王联辉(Lianhui Wang) blog; http://blog.csdn.net/lance_123 兴趣方向:数据库,分布式,数据挖掘,编程语言,互联网技术等

Re: [ANNOUNCE] New Hive PMC Member - Xuefu Zhang

2014-02-28 Thread Lianhui Wang
icable law. If the reader > of this message is not the intended recipient, you are hereby notified that > any printing, copying, dissemination, distribution, disclosure or > forwarding of this communication is strictly prohibited. If you have > received this communication in error, please contact the sender immediately > and delete it from your system. Thank You. > -- thanks 王联辉(Lianhui Wang) blog; http://blog.csdn.net/lance_123 兴趣方向:数据库,分布式,数据挖掘,编程语言,互联网技术等

Re: [ANNOUNCE] New Hive Committer - Xuefu Zhang

2013-11-04 Thread Lianhui Wang
munication in error, please contact the sender immediately and delete > it > > from your system. Thank You. > > > > > > -- > CONFIDENTIALITY NOTICE > NOTICE: This message is intended for the use of the individual or entity to > which it is addressed and may contain information that is confidential, > privileged and exempt from disclosure under applicable law. If the reader > of this message is not the intended recipient, you are hereby notified that > any printing, copying, dissemination, distribution, disclosure or > forwarding of this communication is strictly prohibited. If you have > received this communication in error, please contact the sender immediately > and delete it from your system. Thank You. > -- thanks 王联辉(Lianhui Wang) blog; http://blog.csdn.net/lance_123 兴趣方向:数据库,分布式,数据挖掘,编程语言,互联网技术等

Re: [ANNOUNCE] New Hive PMC Members - Thejas Nair and Brock Noland

2013-10-24 Thread Lianhui Wang
om disclosure under applicable law. If the reader > > of this message is not the intended recipient, you are hereby notified > that > > any printing, copying, dissemination, distribution, disclosure or > > forwarding of this communication is strictly prohibited. If you have > > received this communication in error, please contact the sender > immediately > > and delete it from your system. Thank You. > > > -- thanks 王联辉(Lianhui Wang) blog; http://blog.csdn.net/lance_123 兴趣方向:数据库,分布式,数据挖掘,编程语言,互联网技术等

Re: [ANNOUNCE] New Hive Committer - Yin Huai

2013-09-04 Thread Lianhui Wang
s > > communication in error, please contact the sender immediately and delete > it > > from your system. Thank You. > > -- > CONFIDENTIALITY NOTICE > NOTICE: This message is intended for the use of the individual or entity to > which it is addressed and may contain informa

[jira] [Commented] (HIVE-3430) group by followed by join with the same key should be optimized

2013-07-23 Thread Lianhui Wang (JIRA)
[ https://issues.apache.org/jira/browse/HIVE-3430?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13717883#comment-13717883 ] Lianhui Wang commented on HIVE-3430: Yin Huai,very nice work! >

[jira] [Commented] (HIVE-4506) use one map reduce to join multiple small tables

2013-05-06 Thread Lianhui Wang (JIRA)
[ https://issues.apache.org/jira/browse/HIVE-4506?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13650380#comment-13650380 ] Lianhui Wang commented on HIVE-4506: if these have difference column, HIVE-

[jira] [Commented] (HIVE-4506) use one map reduce to join multiple small tables

2013-05-06 Thread Lianhui Wang (JIRA)
[ https://issues.apache.org/jira/browse/HIVE-4506?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13650371#comment-13650371 ] Lianhui Wang commented on HIVE-4506: Fern, can you provide your sql? if these ta

[jira] [Commented] (HIVE-4429) Nested ORDER BY produces incorrect result

2013-04-26 Thread Lianhui Wang (JIRA)
[ https://issues.apache.org/jira/browse/HIVE-4429?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13643512#comment-13643512 ] Lianhui Wang commented on HIVE-4429: Mihir Kulkarni sorry, my mistakes. Navis

[jira] [Commented] (HIVE-4429) Nested ORDER BY produces incorrect result

2013-04-26 Thread Lianhui Wang (JIRA)
[ https://issues.apache.org/jira/browse/HIVE-4429?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13643453#comment-13643453 ] Lianhui Wang commented on HIVE-4429: hi, Mihir Kulkarni i run the first sql of

[jira] [Commented] (HIVE-4365) wrong result in left semi join

2013-04-16 Thread Lianhui Wang (JIRA)
[ https://issues.apache.org/jira/browse/HIVE-4365?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13633664#comment-13633664 ] Lianhui Wang commented on HIVE-4365: hi,ransom problem also exist in my environ

[jira] [Commented] (HIVE-4137) optimize group by followed by joins for bucketed/sorted tables

2013-03-07 Thread Lianhui Wang (JIRA)
[ https://issues.apache.org/jira/browse/HIVE-4137?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13596690#comment-13596690 ] Lianhui Wang commented on HIVE-4137: in addition. for bucketed/sorted tables,

[jira] [Commented] (HIVE-3963) Allow Hive to connect to RDBMS

2013-03-07 Thread Lianhui Wang (JIRA)
[ https://issues.apache.org/jira/browse/HIVE-3963?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13596639#comment-13596639 ] Lianhui Wang commented on HIVE-3963: i think that must support as clause

[jira] [Commented] (HIVE-3430) group by followed by join with the same key should be optimized

2013-03-01 Thread Lianhui Wang (JIRA)
[ https://issues.apache.org/jira/browse/HIVE-3430?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13590321#comment-13590321 ] Lianhui Wang commented on HIVE-3430: also should consider the following query: SE

[jira] [Commented] (HIVE-4014) Hive+RCFile is not doing column pruning and reading much more data than necessary

2013-02-27 Thread Lianhui Wang (JIRA)
[ https://issues.apache.org/jira/browse/HIVE-4014?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13589226#comment-13589226 ] Lianhui Wang commented on HIVE-4014: hi,Tamas thank you very much,you are right.

[jira] [Commented] (HIVE-4014) Hive+RCFile is not doing column pruning and reading much more data than necessary

2013-02-25 Thread Lianhui Wang (JIRA)
[ https://issues.apache.org/jira/browse/HIVE-4014?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13586701#comment-13586701 ] Lianhui Wang commented on HIVE-4014: i donot think that. i see the code

[jira] [Commented] (HIVE-1643) support range scans and non-key columns in HBase filter pushdown

2012-10-22 Thread Lianhui Wang (JIRA)
[ https://issues.apache.org/jira/browse/HIVE-1643?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13482080#comment-13482080 ] Lianhui Wang commented on HIVE-1643: Ashutosh Chauhan Is this correct? What a

[jira] [Commented] (HIVE-3420) Inefficiency in hbase handler when process query including rowkey range scan

2012-10-22 Thread Lianhui Wang (JIRA)
[ https://issues.apache.org/jira/browse/HIVE-3420?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13482075#comment-13482075 ] Lianhui Wang commented on HIVE-3420: @Gong Deng yes,i agree with you.in InputFo

[jira] [Commented] (HIVE-3561) Build a full SQL-compliant parser for Hive

2012-10-10 Thread Lianhui Wang (JIRA)
[ https://issues.apache.org/jira/browse/HIVE-3561?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13473167#comment-13473167 ] Lianhui Wang commented on HIVE-3561: for the first approach,there is a pro

[jira] [Commented] (HIVE-3472) Build An Analytical SQL Engine for MapReduce

2012-09-24 Thread Lianhui Wang (JIRA)
[ https://issues.apache.org/jira/browse/HIVE-3472?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13462391#comment-13462391 ] Lianhui Wang commented on HIVE-3472: nexr have done some works in oracle sql to

[jira] [Commented] (HIVE-565) support for buckets in the table being inserted

2012-08-09 Thread Lianhui Wang (JIRA)
[ https://issues.apache.org/jira/browse/HIVE-565?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13431923#comment-13431923 ] Lianhui Wang commented on HIVE-565: --- i think before that we need to store the bucke

[jira] [Commented] (HIVE-3306) SMBJoin/BucketMapJoin should be allowed only when join key expression is exactly matches with sort/cluster key

2012-08-01 Thread Lianhui Wang (JIRA)
[ https://issues.apache.org/jira/browse/HIVE-3306?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13427127#comment-13427127 ] Lianhui Wang commented on HIVE-3306: @Namit, i created a new jira HIVE-3329, m

[jira] [Created] (HIVE-3329) Support bucket filtering when where expression or join key expression has the bucket key

2012-08-01 Thread Lianhui Wang (JIRA)
Lianhui Wang created HIVE-3329: -- Summary: Support bucket filtering when where expression or join key expression has the bucket key Key: HIVE-3329 URL: https://issues.apache.org/jira/browse/HIVE-3329

[jira] [Commented] (HIVE-3306) SMBJoin/BucketMapJoin should be allowed only when join key expression is exactly matches with sort/cluster key

2012-08-01 Thread Lianhui Wang (JIRA)
[ https://issues.apache.org/jira/browse/HIVE-3306?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13427069#comment-13427069 ] Lianhui Wang commented on HIVE-3306: also i think there have another con

[jira] [Commented] (HIVE-3254) Reuse RunningJob

2012-07-29 Thread Lianhui Wang (JIRA)
[ https://issues.apache.org/jira/browse/HIVE-3254?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13424569#comment-13424569 ] Lianhui Wang commented on HIVE-3254: yes, i think that can do. but maybe the newR

[jira] [Commented] (HIVE-942) use bucketing for group by

2012-07-01 Thread Lianhui Wang (JIRA)
[ https://issues.apache.org/jira/browse/HIVE-942?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13404730#comment-13404730 ] Lianhui Wang commented on HIVE-942: --- i think in HIVE-931 ,the group by keys must be

[jira] [Commented] (HIVE-895) Add SerDe for Avro serialized data

2011-10-07 Thread Lianhui Wang (Commented) (JIRA)
[ https://issues.apache.org/jira/browse/HIVE-895?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13122896#comment-13122896 ] Lianhui Wang commented on HIVE-895: --- @Jakob:i read the code of the haivvreo. and i t