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Wiki / 运算符

<(float8,float4)

less than

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
float8
Right operand
float4
Result type
bool
Implementing function
float84lt(float8,float4)
Operator kind
Binary
Hash join candidate
no
Merge join candidate
no
aliases
<, <(float8,float4)
manual semantics
Source catalog description; no additional matching manual operator definition claimed
signature
<(float8,float4) → bool
source oid
1132

版本定义 PG 18

less than

Declared operator-family membership

Index AMFamilyStrategyPurposeOrdering family
B-treefloat_ops1search
BRINfloat_minmax_ops1search
BRINfloat_minmax_multi_ops1search

比较版本

完整来源事实

memberships

map[description:less than family:float_ops family_slug:family-btree-float_ops left_type:float8 method:btree operator:<(float8,float4) operator_slug:op-3c-float8-float4 purpose:search result_type:bool right_type:float4 sort_family: sort_family_slug: strategy:1], map[description:less than family:float_minmax_ops family_slug:family-brin-float_minmax_ops left_type:float8 method:brin operator:<(float8,float4) operator_slug:op-3c-float8-float4 purpose:search result_type:bool right_type:float4 sort_family: sort_family_slug: strategy:1], map[description:less than family:float_minmax_multi_ops family_slug:family-brin-float_minmax_multi_ops left_type:float8 method:brin operator:<(float8,float4) operator_slug:op-3c-float8-float4 purpose:search result_type:bool right_type:float4 sort_family: sort_family_slug: strategy:1]

operator

{"commutator":"\u003e(float4,float8)","function":"float84lt(float8,float4)","hash_join":"f","kind":"b","left_type":"float8","merge_join":"f","negator":"\u003e=(float8,float4)","result_type":"bool","right_type":"float4","symbol":"\u003c"}

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