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[HIVE-1545] Add a bunch of UDFs and UDAFs - Hive - [issue]
...Here some UD(A)Fs which can be incorporated into the Hive distribution:UDFArgMax - Find the 0-indexed index of the largest argument. e.g., ARGMAX(4, 5, 3) returns 1.UDFBucket - Find the buck...
http://issues.apache.org/jira/browse/HIVE-1545    Author: Jonathan Chang, 2013-09-05, 01:15
[HIVE-2333] LazySimpleSerDe does not properly handle arrays / escape control characters - Hive - [issue]
...LazySimpleSerDe, the default SerDe for Hive is severely broken: Empty arrays are serialized as an empty string. Hence an array(array()) is indistinguishable from array(array(array())) from a...
http://issues.apache.org/jira/browse/HIVE-2333    Author: Jonathan Chang, 2013-07-09, 00:38
[HIVE-2689] ObjectInspectorConverters cannot convert Void types to Array/Map/Struct types. - Hive - [issue]
...In a bunch of places we rely on ObjectInspectorConverters to implicitly convert types.  Unfortunately, an exception will needlessly be thrown if one of the types is a complex type and t...
http://issues.apache.org/jira/browse/HIVE-2689    Author: Jonathan Chang, 2012-12-10, 20:15
[HIVE-3580] STACK() is crashes if an argument is a literal NULL - Hive - [issue]
...SELECT foo, bar FROM table LATERAL VIEW STACK(3, 1.0, 'a', NULL, 'b', 2.0, 'c') z AS foo, bar fails.  Type conversion between the NULL and the doubles is probably broken in the UDF....
http://issues.apache.org/jira/browse/HIVE-3580    Author: Jonathan Chang, 2012-10-15, 22:11
[HIVE-3474] get_partitions_ps is HORRIBLY broken - Hive - [issue]
...1.) This function assumes that partial spec is in order of the partition columns but it does no checking of this whatsoever.  In fact, it throws away everything before the =.2.) The reg...
http://issues.apache.org/jira/browse/HIVE-3474    Author: Jonathan Chang, 2012-09-17, 23:33
[HIVE-2532] Evaluation of non-deterministic/stateful UDFs should not be skipped even if constant oi is returned. - Hive - [issue]
...Even if constant oi is returned, these may have stateful/side-effect behavior and hence need to be called each cycle....
http://issues.apache.org/jira/browse/HIVE-2532    Author: Jonathan Chang, 2012-08-02, 11:43
[HIVE-2972] SENTENCES() crashes with SMP characters - Hive - [issue]
...The sentences function does not handle characters in the supplementary unicode plane (BreakIterator crashes with ArrayIndexOutOfBounds)....
http://issues.apache.org/jira/browse/HIVE-2972    Author: Jonathan Chang, 2012-05-26, 02:36
[HIVE-2978] IN should throw an error in strict mode if types do not match - Hive - [issue]
...If the types do not match in strict mode (bigint vs string), then this should throw an error (in the same manner as the equality operator)....
http://issues.apache.org/jira/browse/HIVE-2978    Author: Jonathan Chang, 2012-04-24, 06:43
[HIVE-2977] Type widening on Union Alls doesn't make sense. - Hive - [issue]
...When type widening occurs in a UNION ALL query between a STRING column and a BIGINT column, both are casted to DOUBLE which doesn't make any sense since this is lossy for both inputs.  ...
http://issues.apache.org/jira/browse/HIVE-2977    Author: Jonathan Chang, 2012-04-24, 06:40
[HIVE-2714] Lots of special characters are not handled in LIKE - Hive - [issue]
...Currently LIKE converts the string to a regular expression.  It tries to handle special characters but many are not correctly handled, e.g. +, ?, |, etc.  That code should just use...
http://issues.apache.org/jira/browse/HIVE-2714    Author: Jonathan Chang, 2012-04-13, 07:30
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