table_create Users TABLE_HASH_KEY ShortText

table_create Bookmarks TABLE_HASH_KEY ShortText
column_create Bookmarks users COLUMN_VECTOR Users

load --table Bookmarks
[
{"_key": "http://groonga.org/", "users": ["mori", "s-yata"]}
]

select Bookmarks --output_columns _key,users._key --output_type xml
