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[HIVE-4561] Column stats :  LOW_VALUE (or HIGH_VALUE) will always be 0.0000 ,if all the column values larger than 0.0 (or if all column values smaller than 0.0) - Hive - [issue]
...if all column values larger than 0.0  DOUBLE_LOW_VALUE always will be 0.0 or  if all column values less than 0.0,  DOUBLE_HIGH_VALUE will always be hive (default)> create t...
http://issues.apache.org/jira/browse/HIVE-4561    Author: caofangkun, 2014-06-03, 06:28
[HIVE-3682] when output hive table to file,users should could have a separator of their own choice - Hive - [issue]
...By default,when output hive table to file ,columns of the Hive table are separated by ^A character (that is \001).But indeed users should have the right to set a seperator of their own choic...
http://issues.apache.org/jira/browse/HIVE-3682    Author: caofangkun, 2014-03-09, 07:50
[HIVE-4367] enhance  TRUNCATE syntex  to drop data of external table - Hive - [issue]
...In my use case ,sometimes I have to remove data of external tables to free up storage space of the cluster .So it's necessary for to enhance the syntax like "TRUNCATE TABLE srcpart_truncate ...
http://issues.apache.org/jira/browse/HIVE-4367    Author: caofangkun, 2014-01-28, 11:35
[HIVE-3914] use Chinese in hive column comment and table comment - Hive - [issue]
...use Chinese in hive column comment and table comment,and the metadata in Mysql is regular,the charset of 'COMMENT' column in 'columns_v2' table and 'PARAM_VALUE' column in 'table_params' tab...
http://issues.apache.org/jira/browse/HIVE-3914    Author: caofangkun, 2013-09-06, 09:34
[HIVE-4905] In strict mode, predicate pushdown does not work on partition columns with statements using left/right join - Hive - [issue]
...set hive.mapred.mode=strict;drop table mpt3;create table mpt3 (s1 string , s2 string) partitioned by (dt string, time string);alter table mpt3 add partition (dt='1',time='2');drop table mpt4...
http://issues.apache.org/jira/browse/HIVE-4905    Author: caofangkun, 2013-07-22, 10:41
[HIVE-4735] table's lifecycle should be controlled in Hive - Hive - [issue]
...Example as:– create table src,and set it's lifecycle as 100 days– alter 100 days the table will be dropped automaticallyCREATE TABLE src (key string, value string) TBLPROPERTIES ...
http://issues.apache.org/jira/browse/HIVE-4735    Author: caofangkun, 2013-06-14, 07:42
[HIVE-4729] when subquery is a star selection  with a group by ,the query will generate Confusing SemanticException - Hive - [issue]
...hive (default)> desc src;OKkey                 string               None           &nb...
http://issues.apache.org/jira/browse/HIVE-4729    Author: caofangkun, 2013-06-13, 09:46
[HIVE-4346] when writing data into filesystem from queries ,the output files could contain a line of column names - Hive - [issue]
...For example :hive>desc src;key stringvalue stringhive>select * from src;1 102 20hive>set hive.output.markschema=true;hive>insert overwrite local directory './test1' select * from...
http://issues.apache.org/jira/browse/HIVE-4346    Author: caofangkun, 2013-06-07, 07:41
[HIVE-4671] When HiveQL WHERE clause  is a constant value or a single column name , it should be  handled in reason - Hive - [issue]
...User can specify any condition using WHERE clause. This clause is used to compare given value with the field value available in Hive table .Generally speaking WHERE condition should be key-v...
http://issues.apache.org/jira/browse/HIVE-4671    Author: caofangkun, 2013-06-06, 07:38
[HIVE-4659] while sql contains \t , 'desc formatted view_name' and 'show create table view_name' statements will generate Incomplete results - Hive - [issue]
...drop view if exists v_test;CREATE VIEW v_test AS select key,    – start by \t\t value,  – start by \t\t dt from – start by \t\t(select key, value, dt f...
http://issues.apache.org/jira/browse/HIVE-4659    Author: caofangkun, 2013-06-05, 13:04
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