<->(point,point)

distance between

当前阅读 PG 18·选择有来源记录的版本

此版本暂无所选语言的定义，以下显示原始英文内容。

Left operand: point
Right operand: point
Result type: float8
Implementing function: point_distance(point,point)
Operator kind: Binary
Hash join candidate: no
Merge join candidate: no
aliases: <->, <->(point,point)
manual semantics: Source catalog description; no additional matching manual operator definition claimed
signature: <->(point,point) → float8
source oid: 517

版本定义 PG 18

distance between

Declared operator-family membership

Index AM	Family	Strategy	Purpose	Ordering family
GiST	point_ops	15	ordering	float_ops
SP-GiST	quad_point_ops	15	ordering	float_ops
SP-GiST	kd_point_ops	15	ordering	float_ops

比较版本

完整来源事实

memberships

map[description:distance between family:point_ops family_slug:family-gist-point_ops left_type:point method:gist operator:<->(point,point) operator_slug:op-3c2d3e-point-point purpose:ordering result_type:float8 right_type:point sort_family:float_ops sort_family_slug:family-btree-float_ops strategy:15], map[description:distance between family:quad_point_ops family_slug:family-spgist-quad_point_ops left_type:point method:spgist operator:<->(point,point) operator_slug:op-3c2d3e-point-point purpose:ordering result_type:float8 right_type:point sort_family:float_ops sort_family_slug:family-btree-float_ops strategy:15], map[description:distance between family:kd_point_ops family_slug:family-spgist-kd_point_ops left_type:point method:spgist operator:<->(point,point) operator_slug:op-3c2d3e-point-point purpose:ordering result_type:float8 right_type:point sort_family:float_ops sort_family_slug:family-btree-float_ops strategy:15]

operator

{"commutator":"\u003c-\u003e(point,point)","function":"point_distance(point,point)","hash_join":"f","kind":"b","left_type":"point","merge_join":"f","negator":"","result_type":"float8","right_type":"point","symbol":"\u003c-\u003e"}

来源引用

完整定义与证据 JSON

定义来源

center · PostgreSQL 18 · 555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f

正文语言: en · 555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f