Expression, Operand

in judges if a given value belongs to a set.

Syntax:

• Expression: <value> in <array>
• Operand: see list below

Abbreviated form: when judging whether the UUID of the current node/edge belongs to an array of integers or an array of UUIDs of a node/edge array alias, the filter can be abbreviated as the array of integers or the node/edge array alias without the curly bracket

Constant

Example: judge if 2 belongs to [1,2,3]

return 2 in [1,2,3]

Function

Example: judge if 2 belongs to [1,2,3]

uncollect [1,2,3] as n
return 2 in collect(n)

Alias

Example: find 10 nodes whose levels belong to [1,2,3]

find().nodes() as n
where n.level in [1, 2, 3]
limit 10
return n{*}

Property

Example: find 10 cards or customers

find().nodes({@ in ["card","customer"]}) as n
limit 10
return n{*}

Example: find 10 nodes whose levels belong to [1,2,3]

find().nodes({level in [1, 2, 3]}) as n
limit 10
return n{*}

UUID (Abbreviated)

Example: find 1-hop neighbors of Node 1 (UUID is 1, etc), Node 2, and Node 3, then find 1-hop neighbors of these neighbors, return deduplicated results

khop().n([1,2,3]).e().n() as n1
with collect(n1) as n2
khop().n(n2).e().n() as n3
return distinct(n3)