---
title: "Merge"
description: "one fact recording that two entities are one; it changes no other fact"
section: concepts
address: /concepts/merge
contract: 0476e35e6e275db5
---

# Merge

one fact recording that two entities are one; it changes no other fact

[figure: Merge is a fact at follows scope. The drawing shows its fields and the objects that they point at.]

| property | value |
|---|---|
| kind | fact |
| scope | follows |
| key | the decision that caused it |
| store | postgres+lake |
| family | identity |



## Fields


| field | type | required | note |
|---|---|---|---|
| `decision` | `id` | yes |  |
| `first` | `id` | yes |  |
| `second` | `id` | yes |  |
| `answers_for_both` | `id` | yes |  |
| `claim_precedence` | `text` | yes | which of two claims shows first |
| `parted_by` | `id` | no |  |



## Routes that use it
No route takes or returns Merge directly. The record holds it, and the objects that point at it reach it.