• Expression: <value1> <= <value2>
• Operand: string, number, time

Constant

Example: Judge whether "2020-01-04" is less than or equal to "2020-04-27"

return "2020-01-04" <= "2020-04-27"

1

Function

Example: Judge whether PI is less than or equal to 3

return pi() <= 3

0

Alias

Example: Judge each row of an alias whether it is less than or equal to 3

uncollect [1,2,3,2,2] as a
return a <= 2

1
1
0
1
1

Sample graph: (to be used for the following examples)

create().node_schema("professor").node_schema("student")
create().node_property(@*, "age", int32).node_property(@*, "email", string)
insert().into(@professor).nodes([{_id:"P001",_uuid:1,age:53,email:"test@yahoo.cn"},{_id:"P002",_uuid:2,age:27,email:"test@ultipa.com"}])
insert().into(@student).nodes([{_id:"S001",_uuid:3,age:27,email:"test@yeah.net"},{_id:"S002",_uuid:4,age:20,email:"test@w3.org"},{_id:"S003",_uuid:5,age:25,email:"test@gmail.com"}])

Property

Example: Find nodes whose age is less than or equal to 27

find().nodes({age <= 27}) as n
return n{*} 

|--------------- @professor --------------|
|  _id  | _uuid |  age  |       email     |
|-------|-------|-------|-----------------|
| P002  |   2   |  27   | test@ultipa.com |

|---------------- @student ---------------|
|  _id  | _uuid |  age  |       email     |
|-------|-------|-------|-----------------|
| S001  |   3   |  27   | test@yeah.net   |
| S002  |   4   |  20   | test@w3.org     |
| S003  |   5   |  25   | test@gmail.com  |

Example: Find nodes of @professor, whose age is less than or equal to 27

find().nodes({@professor.age <= 27}) as n
return n{*} 

|--------------- @professor --------------|
|  _id  | _uuid |  age  |       email     |
|-------|-------|-------|-----------------|
| P002  |   2   |  27   | test@ultipa.com |