将注释添加到分区列

时间:2013-11-20 22:54:02

标签: hive hiveql

我有以下配置单元表,其中eventdate是分区列:

hive> describe item_pages;
siteid                  int                     the site identifier for the host domain
externalsessionid       string                  the instrumented sessionid
item_pages              array<string>           an array of all distinct page IDs
eventdate               string                  None                

# Partition Information      
# col_name              data_type               comment             

eventdate               string                  None     

有没有办法可以为分区列的表元数据添加注释?将eventdate分区列作为常规列处理时,我得到以下响应:

hive> ALTER TABLE da_itempages CHANGE eventdate eventdate string COMMENT 'the PST calendar date of the item page views in YYYY-MM-DD format'
Column 'eventdate' does not exists
FAILED: Execution Error, return code 1 from org.apache.hadoop.hive.ql.exec.DDLTask

(示例命令与将成功插入到每个describe语句具有列的列中的注释完全相同的命令。)

0 个答案:

没有答案
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