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From "Xuefu Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-7053) Unable to fetch column stats from decimal columns
Date Sun, 08 Jun 2014 05:01:03 GMT

     [ https://issues.apache.org/jira/browse/HIVE-7053?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Xuefu Zhang updated HIVE-7053:
------------------------------

    Attachment: HIVE-7053.patch

Newly attached patch addressed:
1. Rebased with trunk
2. Added a test case.

> Unable to fetch column stats from decimal columns
> -------------------------------------------------
>
>                 Key: HIVE-7053
>                 URL: https://issues.apache.org/jira/browse/HIVE-7053
>             Project: Hive
>          Issue Type: Bug
>          Components: Statistics
>    Affects Versions: 0.13.0
>            Reporter: Xuefu Zhang
>            Assignee: Xuefu Zhang
>         Attachments: HIVE-7053.patch
>
>
> After HIVE-6701, column stats for decimal columns can be computed. However, when the
stats are fetched, nothing is returned. The problem was originally reproducible using thrift
API. With the patch in HIVE-7050, the problem can be also produced using "desc formatted table
column".
> {code}
> hive> desc formatted dec i;   
> OK
> # col_name            	data_type           	min                 	max                
	num_nulls           	distinct_count      	avg_col_len         	max_col_len         	num_trues
          	num_falses          	comment             
> 	 	 	 	 	 	 	 	 	 	 
> i                   	int                 	0                   	4                   	0
                  	5                   	null                	null                	null   
            	null                	from deserializer   
> hive> desc formatted dec d;
> OK
> # col_name            	data_type           	min                 	max                
	num_nulls           	distinct_count      	avg_col_len         	max_col_len         	num_trues
          	num_falses          	comment             
> 	 	 	 	 	 	 	 	 	 	 
> d                   	decimal(5,2)        	from deserializer   	 	 	 	 	 	 	 	 
> {code}



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