HeadStage
Entity-set stage that keeps the first n rows of the running set.
opOp (string)필수
상수 값:
headnN (integer)필수
Possible values: >= 0
HeadStage
{
"op": "head",
"n": 0
}
Entity-set stage that keeps the first n rows of the running set.
headPossible values: >= 0
{
"op": "head",
"n": 0
}