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Inconsistencies around casting booleans - Hive - [mail # dev]
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...Hi all, We've been using boolean types in partition values (not the best idea, I know), and we've noticed a few inconsistencies around casting: SELECT cast('true' as boolean), ca...
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Author: Philip Tromans,
2012-08-09, 09:14
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Inconsistencies around casting booleans - Hive - [mail # dev]
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...Hi all, We've been using boolean types in partition values (not the best idea, I know), and we've noticed a few inconsistencies around casting: select cast('true' as boolean), ca...
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Author: Philip Tromans,
2012-08-09, 08:52
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Re: Something wrong with my query to get TOP 3? - Hive - [mail # user]
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...Your rank() is being evaluated map side. Put your distribute by and sort by in an inner query, and then evaluate your rank() in an outer query. Phil. On Jul 19, 2012 9:00 PM, "comptech...
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Author: Philip Tromans,
2012-07-19, 20:15
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[HIVE-3125] sort_array doesn't work with LazyPrimitive - Hive - [issue]
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...The sort_array function doesn't work against data that's actually come out of a table. The test suite only covers constants given in the query.If you try and use sort_array on an array from ...
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http://issues.apache.org/jira/browse/HIVE-3125
Author: Philip Tromans,
2012-06-23, 21:34
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Re: Starting hive thrift server as daemon process ? - Hive - [mail # user]
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...A really quick (but by no means as good) solution is to use screen. http://www.gnu.org/software/screen/ Phil. On 14 June 2012 13:38, dong.yajun wrote: on-centos/ mon ...
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Author: Philip Tromans,
2012-06-14, 12:41
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Importing data into Hive - Hive - [mail # user]
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...Hi all, I'm interested in knowing how everyone is importing their data into their production Hive clusters. Let me explain a little more. At the moment, I have log files (which a...
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Author: Philip Tromans,
2012-06-06, 11:20
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Re: dynamic partition import - Hive - [mail # user]
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...Is there anything interesting in the datanode logs? Phil. On 29 May 2012 10:37, Nitin Pawar wrote: ted is ext-10000/createddttm=2011-04-24/_tmp.000001_2 SNamesystem.java:14...
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Author: Philip Tromans,
2012-05-29, 09:46
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Re: non-string partition columns - Hive - [mail # dev]
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...We're using non-string partition columns in production. I think non string partition columns are a good thing to have - it allows you to do all sorts of date range calculations etc. AFAIK, M...
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Author: Philip Tromans,
2012-05-26, 08:20
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Re: Map side aggregations - Hive - [mail # user]
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...Hi Ranjith, I haven't checked the code (so this might not be true), but I think that the map side aggregation stuff uses it's own hash map within the map phase to do the aggregation, i...
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Author: Philip Tromans,
2012-05-23, 09:15
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Re: Date format - any easier way - Hive - [mail # user]
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...I knocked up the following when we were experimenting with Hive. I've been meaning to go and tidy it up for a while, but using it with a separator of "" (empty string) should have the desire...
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Author: Philip Tromans,
2012-05-15, 15:23
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