---
title: "pg_publication_namespace"
id: catalog-pg-publication-namespace
pg_version: "20devel"
---

<a id="catalog-pg-publication-namespace"></a>

## 52.46. pg_publication_namespace

The catalog pg_publication_namespace contains the mapping between schemas and publications in the database. This is a many-to-many mapping. 

**pg_publication_namespace Columns**

| Column Type | Description | 
| --- | --- |
| `oid` `oid` | Row identifier |
| `pnpubid` `oid` (references [pg_publication](catalog-pg-publication.md).`oid`) | Reference to publication |
| `pnnspid` `oid` (references [pg_namespace](catalog-pg-namespace.md).`oid`) | Reference to schema |