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table_create Tags TABLE_PAT_KEY ShortText
table_create Memos TABLE_HASH_KEY ShortText
column_create Memos date COLUMN_SCALAR Time
column_create Memos tag COLUMN_SCALAR Tags
column_create Tags memos_tag COLUMN_INDEX Memos tag
load --table Memos
[
{"_key": "Groonga is fast!", "date": "2016-05-19 12:00:00", "tag": "Groonga"},
{"_key": "Mroonga is fast!", "date": "2016-05-19 12:00:01", "tag": "Mroonga"},
{"_key": "Groonga sticker!", "date": "2016-05-19 12:00:02", "tag": "Groonga"},
{"_key": "Groonga site!", "date": "2016-05-19 12:00:02", "tag": "Groonga"},
{"_key": "Rroonga is fast!", "date": "2016-05-19 12:00:03", "tag": "Rroonga"}
]
select Memos \
--filter 'date < "2016-05-19 13:00:02"' \
--slices[groonga].filter 'tag @ "Groonga"' \
--slices[groonga].sort_keys '_id' \
--slices[groonga].output_columns '_key, date, tag' \
--drilldowns[tags].table groonga \
--drilldowns[tags].keys date
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