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UDF for transforming a collection of arrays into an array of structs - Hive - [mail # user]
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...Hi, I am working on ingesting some legacy data that is denormalized in hive somewhat like the following: CREATE TABLE mytable ( order_id int, &...
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Author: Roberto Congiu,
2013-03-29, 21:29
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Re: Interference between two customSerde.jar - Hive - [mail # user]
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...Without more specific info about the two serdes I can't be sure, but most likely there may be a dependency conflict between the two serdes. Sometimes, for instance, they may use a different ...
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Author: Roberto Congiu,
2012-10-12, 23:39
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Re: SerDe loading external scheme - Hive - [mail # user]
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...I think the additions you make to the Configuration object in the client are done after the job.xml is written to disk and sent to the rest of the cluster, but you could add the extern...
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Author: Roberto Congiu,
2012-04-05, 17:35
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Re: Accessing elements from array returned by split() function - Hive - [mail # user]
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...You can also use parse_url(url, 'HOST') instead of a regular expression. On Thu, Mar 1, 2012 at 1:32 PM, Saurabh S wrote: ...
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Author: Roberto Congiu,
2012-03-02, 00:17
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Re: Adding Hive Partitions Programatically. - Hive - [mail # user]
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...Also consider that if you're using the metastore API, you'll most likely need to recompile whenever you upgrade hive, while you most likely won't need to do that if you use thrift. &nb...
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Author: Roberto Congiu,
2012-03-01, 22:48
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Re: 2 questions about SerDe - Hive - [mail # user]
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...Have a look at the code for the LazySerDes. When you deserialize in the SerDe, you don't actually have to deserialize all the columns. Deserialized could return an object that is not actuall...
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Author: Roberto Congiu,
2012-02-21, 16:35
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Re: Executing queries on rows from multiple tables - Hive - [mail # user]
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...You can use UNION even if the tables are different: SELECT * FROM ( select_statement UNION ALL select_statement ) unionResult https://cwiki.apache.org/confluence/...
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Author: Roberto Congiu,
2012-02-14, 03:45
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Re: external partitioned table - Hive - [mail # user]
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...Hi Koert, we have a similar situation and this is what we did. In our case, the partitions correspond to dates. We also have multiple external tables set up this way. The upstream process up...
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Author: Roberto Congiu,
2012-02-08, 19:18
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Re: error on left/right join, hive 0.8.0 - Hive - [mail # user]
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...Woops... you're right and I apologize for the . We were using the stock cloudera 0.7 version but needed some patches in 0.8 so I took the cloudera hive srpm, changed the spec file, sou...
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Author: Roberto Congiu,
2012-01-20, 18:29
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error on left/right join, hive 0.8.0 - Hive - [mail # user]
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...Hey guys, we found an issue that looks like a bug (hive 0.8 , caldera's distribution). SELECT count(1) FROM table1 a LEFT OUTER JOIN table2 b ON ( a.key1 = b....
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Author: Roberto Congiu,
2012-01-20, 01:01
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