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From Apache Wiki <wikidi...@apache.org>
Subject [Hadoop Wiki] Update of "Hive/LanguageManual/DDL" by ZhengShao
Date Wed, 08 Jul 2009 08:43:30 GMT
Dear Wiki user,

You have subscribed to a wiki page or wiki category on "Hadoop Wiki" for change notification.

The following page has been changed by ZhengShao:
http://wiki.apache.org/hadoop/Hive/LanguageManual/DDL

------------------------------------------------------------------------------
  === Describe Table/Column ===
  {{{
  DESCRIBE [EXTENDED] table_name[DOT col_name]
- DESCRIBE [EXTENDED] table_name[DOT col_name ([DOT field_name]|[DOT '$elem$']|[DOT '$key$']|[DOT
'$value$'] ]
+ DESCRIBE [EXTENDED] table_name[DOT col_name ( [DOT field_name] | [DOT '$elem$'] | [DOT '$key$']
| [DOT '$value$'] )* ]
  }}}
  
  DESCRIBE TABLE shows the list of columns including partition column for the given table.
If EXTENDED keyword is specified then it will show all the metadata for the table in Thrift
serialized form. This is generally only useful for debugging and not for general use.

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