↑↓ select↵ open⌫ change scopeOpen full search

PG.CENTER connects PostgreSQL documentation, reference, and ecosystem knowledge. Maintained by Pigsty.

Wiki / Operator Families

hash/xid_ops (family)

Hash operator family containing 1 classes, 1 operator strategies and 2 support functions in this source build.

Reading PG 18·Select a recorded version

Object kind
Operator family
Index AM
Hash
aliases
xid_ops, hash/xid_ops
classes
map[default:t family:xid_ops family_slug:family-hash-xid_ops input_type:xid key_type:none method:hash name:xid_ops slug:class-hash-xid_ops source_oid:]
operators
map[description:equal family:xid_ops family_slug:family-hash-xid_ops left_type:xid method:hash operator:=(xid,xid) operator_slug:op-3d-xid-xid purpose:search result_type:bool right_type:xid sort_family: sort_family_slug: strategy:1]
signature
hash/xid_ops
source oid
2225

Definition PG 18

Hash operator family containing 1 classes, 1 operator strategies and 2 support functions in this source build.

Family operator strategies

Operator overloadStrategyPurposeOrdering familyMembership scopeSource description
=(xid,xid)1searchFamily memberequal

Family support functions

Support numberLeft typeRight typeFunction signatureResult type
1xidxidhashxid(xid)int4
2xidxidhashxidextended(xid,int8)int8

Classes in this family

ClassInput typeKey typeDefault
xid_opsxidSame as input typeyes

Compare versions

Complete source facts

family

{"method":"hash","name":"xid_ops"}

support functions

map[family:xid_ops family_slug:family-hash-xid_ops function:hashxid(xid) left_type:xid method:hash number:1 result_type:int4 right_type:xid], map[family:xid_ops family_slug:family-hash-xid_ops function:hashxidextended(xid,int8) left_type:xid method:hash number:2 result_type:int8 right_type:xid]

Source references

Full definition and evidence JSON

Definition sources

center · PostgreSQL 18 · 555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f

Text language: en · 555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f