hash/enum_ops (class)

Hash operator class for anyenum; member of enum_ops.

Reading PG 18·Select a recorded version

Object kind: Operator class
Index AM: Hash
Input type: anyenum
Stored key type: Same as input type (catalog zero)
Default class: yes
aliases: enum_ops, hash/enum_ops
classes: map[default:t family:enum_ops family_slug:family-hash-enum_ops input_type:anyenum key_type:none method:hash name:enum_ops slug:class-hash-enum_ops source_oid:]
signature: hash/enum_ops
source oid: Unknown

Definition PG 18

Hash operator class for anyenum; member of enum_ops.

Family operator strategies

Operator overload	Strategy	Purpose	Ordering family	Membership scope	Source description
=(anyenum,anyenum)	1	search		Class input pair	equal

Family support functions

Support number	Left type	Right type	Function signature	Result type
1	anyenum	anyenum	hashenum(anyenum)	int4
2	anyenum	anyenum	hashenumextended(anyenum,int8)	int8

Classes in this family

Class	Input type	Key type	Default
enum_ops	anyenum	Same as input type	yes

Compare versions

Complete source facts

class

{"default":"t","family":"enum_ops","input_type":"anyenum","key_type":"none","method":"hash","name":"enum_ops"}

operators

map[description:equal family:enum_ops family_slug:family-hash-enum_ops left_type:anyenum method:hash operator:=(anyenum,anyenum) operator_slug:op-3d-anyenum-anyenum purpose:search result_type:bool right_type:anyenum sort_family: sort_family_slug: strategy:1]

support functions

map[family:enum_ops family_slug:family-hash-enum_ops function:hashenum(anyenum) left_type:anyenum method:hash number:1 result_type:int4 right_type:anyenum], map[family:enum_ops family_slug:family-hash-enum_ops function:hashenumextended(anyenum,int8) left_type:anyenum method:hash number:2 result_type:int8 right_type:anyenum]

Source references

Full definition and evidence JSON

Definition sources

center · PostgreSQL 18 · 555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f

Text language: en · 555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f