[giant sequoia database Sequoiadb] whether SequoiaDB supports the parameters of the sum function in group by.

[detailed description of the problem]

In SequoiaDB, when group by, can fields of decimal (High Precision number) type do sum functions?

[solution]

The 1.decimal type supports aggregate functions in group by, such as:

The following data is available in the collection cl:

{"a": {"$decimal": "111.111"}, "name": "zhangsan"}

{"a": {"$decimal": "222.222"}, "name": "zhangsan"}

{"a": {"$decimal": "123.456"}, "name": "lisi"}

two。 Aggregate the'a 'field of type decimal when using group by

Db.exec ("select sum (a) as sum from cs.cl group by name")

3. The results are as follows:

{"decimal": {"$sum": "123.456"}}

{"decimal": {"$sum": "333.333"}}

[reference for details]

High precision number: http://doc.sequoiadb.com/cn/SequoiaDB-cat_id-1519612297-edition_id-300

Aggregate function: http://doc.sequoiadb.com/cn/index-cat_id-1432190972-edition_id-300

[solution]

The decimal type supports aggregate functions in group by, such as:

1. The following data is available in the collection cl:

{"a": {"$decimal": "111.111"}, "name": "zhangsan"}

{"a": {"$decimal": "222.222"}, "name": "zhangsan"}

{"a": {"$decimal": "123.456"}, "name": "lisi"}

two。 Aggregate the'a 'field of type decimal when using group by

Db.exec ("select sum (a) as sum from cs.cl group by name")

3. The results are as follows:

{"decimal": {"$sum": "123.456"}}

{"decimal": {"$sum": "333.333"}}

[reference for details]

High precision number: http://doc.sequoiadb.com/cn/SequoiaDB-cat_id-1519612297-edition_id-300

Aggregate function: http://doc.sequoiadb.com/cn/index-cat_id-1432190972-edition_id-300