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[HIVE-4022] Structs and struct fields cannot be NULL in INSERT statements - Hive - [issue]
...Originally thought to be Avro-specific, and first noted with respect to HIVE-3528 "Avro SerDe doesn't handle serializing Nullable types that require access to a Schema", it turns out even na...
http://issues.apache.org/jira/browse/HIVE-4022    Author: Michael Malak, 2013-11-08, 22:31
[expand - 1 more] - Re: UDFs with package names - Hive - [mail # user]
...Yup, it was the directory structure com/mystuff/whateverUDF.class that was missing.  Thought I had tried that before posting my question, but...  Thanks for your help!   __________...
   Author: Michael Malak, 2013-07-31, 15:58
Re: Best Performance on Large Scale Join - Hive - [mail # user]
...Perhaps you can first create a temp table that contains only the records that will match?  See the UNION ALL trick at http://www.mail-archive.com/[EMAIL PROTECTED]/msg01906.html    ...
   Author: Michael Malak, 2013-07-29, 18:04
Re: Oracle to Hive - Hive - [mail # user]
...Untested:  SELECT a.c100, a.c300, b.c400   FROM t1 a   JOIN t2 b   ON a.c200 = b.c200   JOIN (SELECT DISTINCT a.c100           FROM t1 a2           JOIN t2 b2           ON a2.c200 = b2....
   Author: Michael Malak, 2013-07-10, 21:41
Re: How Can I store the Hive query result in one file ? - Hive - [mail # user]
...I have found that for output larger than a few GB, redirecting stdout results in an incomplete file.  For very large output, I do CREATE TABLE MYTABLE AS SELECT ... and then copy the resulti...
   Author: Michael Malak, 2013-07-04, 14:53
Re: Fwd: Need urgent help in hive query - Hive - [mail # user]
...Just copy and paste the whole long expressions to their second occurrences.   ________________________________  From: dyuti a  To: [EMAIL PROTECTED]  Sent: Friday, June 2...
   Author: Michael Malak, 2013-06-28, 17:03
[expand - 1 more] - Re: how to combine some rows into 1 row in hive - Hive - [mail # user]
...It's really more of a HiveQL trick than a SQL trick.  In SQL, one would express it as a subquery, which is more straightforward and readable, and has the additional advantage that you could ...
   Author: Michael Malak, 2013-06-23, 21:40
[expand - 3 more] - Re: INSERT non-static data to array? - Hive - [mail # user]
...My understanding is that LATERAL VIEW goes the other direction: takes an array and makes it into separate rows.  I use that a lot.  But I also need to go the other way sometimes: take a bunc...
   Author: Michael Malak, 2013-06-21, 01:21
[HIVE-4771] Support subqueries in INSERT for array types - Hive - [issue]
...Since Hive supports SQL1999-style array types for columns, it would be nice for there to be a way to INSERT non-static data into such columns – i.e. from another table based on a compl...
http://issues.apache.org/jira/browse/HIVE-4771    Author: Michael Malak, 2013-06-20, 23:08
Re: Hive Group By Limitations - Hive - [mail # user]
...  Although MySQL allows it, it is not ANSI SQL.  http://stackoverflow.com/questions/1225144/why-does-mysql-allow-group-by-queries-without-aggregate-functions...
   Author: Michael Malak, 2013-05-06, 18:11
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