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[HIVE-547] NullPointerException in ExecDriver - Hive - [issue]
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...We saw a job failed with the following message in hive.log.2009-06-06 22:50:55,275 ERROR exec.ExecDriver (SessionState.java:printError(279)) - Ended Job = job_200905211352_145363 with except...
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http://issues.apache.org/jira/browse/HIVE-547
Author: Zheng Shao,
2011-12-17, 00:07
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[HIVE-405] Cleanup operator initialization - Hive - [issue]
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...We are always passing the same ObjectInspector, so there is no need to pass it again and again in forward.Also there is a problem that can ONLY be fixed by passing ObjectInspector in init: O...
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http://issues.apache.org/jira/browse/HIVE-405
Author: Zheng Shao,
2011-12-17, 00:07
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[HIVE-466] Fix queries like "SELECT t.*, t.a" - Hive - [issue]
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...There was a bug in the SemanticAnalyzer that adds the columnID for one more time for "*".This causes queries like this to fail:create table zshao_lazy (a int);// load one row of data into zs...
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http://issues.apache.org/jira/browse/HIVE-466
Author: Zheng Shao,
2011-12-17, 00:07
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[HIVE-522] GenericUDAF: Extend UDAF to deal with complex types - Hive - [issue]
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...We can pass arbitrary arguments into GenericUDFs. We should do the same thing to GenericUDAF so that UDAF can also take arbitrary arguments....
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http://issues.apache.org/jira/browse/HIVE-522
Author: Zheng Shao,
2011-12-17, 00:07
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[HIVE-462] Avoiding Text -> String -> Text conversions - Hive - [issue]
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...There is a performance bug in that we still convert Text -> String -> Text sometimes.I planned to fix it together with HIVE-405 but I don't think I will be able to finish it for anothe...
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http://issues.apache.org/jira/browse/HIVE-462
Author: Zheng Shao,
2011-12-17, 00:07
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[HIVE-635] UnionOperator fails when different inputs have different ObjectInspector (but the same TypeInfo) - Hive - [issue]
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...The current UnionOperator code assumes the ObjectInspectors from all parents are the same.But in reality, they can be different, and UnionOperator needs to do conversion if necessary....
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http://issues.apache.org/jira/browse/HIVE-635
Author: Zheng Shao,
2011-12-17, 00:07
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[HIVE-509] Support CREATE TABLE a LIKE b - Hive - [issue]
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...See http://dev.mysql.com/doc/refman/5.1/en/create-table.html...
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http://issues.apache.org/jira/browse/HIVE-509
Author: Zheng Shao,
2011-12-17, 00:07
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[HIVE-511] Change the hashcode for DoubleWritable - Hive - [issue]
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...The current DoubleWritable hashCode takes only the last 32 bits. This is a big problem because for small integer values like 1.0, 2.0, 15.0, the hashCode are all 0....
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http://issues.apache.org/jira/browse/HIVE-511
Author: Zheng Shao,
2011-12-17, 00:07
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[HIVE-266] Improve SerDe performance by using Text instead of String - Hive - [issue]
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...A recent performance study showed that 2 places in Hive code has exhibited large cpu usage percentage:1. String.getBytes() (UTF-8 encoding)2. String.split()We should replace String with Text...
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http://issues.apache.org/jira/browse/HIVE-266
Author: Zheng Shao,
2011-12-17, 00:07
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[HIVE-164] Support CASE statement using GenericUDF - Hive - [issue]
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...See http://dev.mysql.com/doc/refman/5.0/en/control-flow-functions.html for details.Syntax:CASE value WHEN [compare_value] THEN result [WHEN [compare_value] THEN result ...] [<ELSE result]...
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http://issues.apache.org/jira/browse/HIVE-164
Author: Zheng Shao,
2011-12-17, 00:07
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