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Re: Hive query problem on S3 table - Hive - [mail # user]
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...Tim, Could you try doing set hive.input.format=org.apache.hadoop.hive.ql.io.HiveInputFormat; before running the query? Shrikanth On Apr 18, 2013, at 8:09 AM, Tim Bittersoh...
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Author: shrikanth shankar,
2013-04-18, 15:32
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Re: Hive Row number - Hive - [mail # user]
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...See http://www.edwardcapriolo.com/roller/edwardcapriolo/entry/doing_rank_with_hive thanks, Shrikanth On Dec 14, 2012, at 8:18 AM, maya bhardwaj wrote: ...
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Author: shrikanth shankar,
2012-12-14, 16:22
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Re: Writing Custom Serdes for Hive - Hive - [mail # user]
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...I think what you need is a custom Input Format/ Record Reader. By the time the SerDe is called the row has been fetched. I believe the record reader can get access to predicates....
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Author: shrikanth shankar,
2012-10-16, 16:09
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Re: View Partition Pruning not Occurring during transform - Hive - [mail # user]
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...I assume the reason for this is that the Hive compiler has no way of determining that the 'day' that is input into the transform script is the same 'day' that is output from the ...
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Author: shrikanth shankar,
2012-10-10, 20:24
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Re: Nested Select Statements - Hive - [mail # user]
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...This should work Select ts,id,sum(metric/usage_count) from usage join (select count(*) usage_count from usage) V on ( 1 = 1) group by ts,id; thanks, Shrikanth On Aug ...
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Author: shrikanth shankar,
2012-08-09, 20:41
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Re: Parse Error with '-' in Hive - Hive - [mail # user]
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...I believe Hive column names cant have '-' in them . From what I know this JSON serde uses column names as JSON expressions. This means that if you renamed the column name you wou...
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Author: shrikanth shankar,
2012-05-31, 16:03
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Re: Hive 'rest' column - Hive - [mail # user]
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...I believe the default LazySerDe takes a parameter called 'serialization.last.column.takes.rest'. Setting this to true might solve your issue (restoMsg would become a string then ...
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Author: shrikanth shankar,
2012-05-30, 20:46
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Re: What's the right data storage/representation? - Hive - [mail # user]
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...Hive tables can sit on top of S3 storage so you dont really need a separate export process thanks, Shrikanth On May 15, 2012, at 11:35 AM, Jon Palmer wrote: technology like...
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Author: shrikanth shankar,
2012-05-15, 18:41
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Re: how to select without Mapreduce after index build？ - Hive - [mail # user]
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... For one, your data size is so small that I am not sure that indexes would help (the fixed cost of the extra MR job would probably over shadow any benefits from indexes). &n...
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Author: shrikanth shankar,
2012-05-15, 17:53
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Re: What's the right data storage/representation? - Hive - [mail # user]
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...I would agree on keeping track of the history of updates in a separate table in Hive (you may not need to maintain it in the application tier). This pattern seems to be the "Slow...
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Author: shrikanth shankar,
2012-05-15, 17:14
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