---
title: "pg_conversion"
id: catalog-pg-conversion
pg_version: "20devel"
---

<a id="catalog-pg-conversion"></a>

## 52.14. pg_conversion

The catalog pg_conversion describes encoding conversion functions. See [CREATE CONVERSION](sql-createconversion.md) for more information. 

**pg_conversion Columns**

| Column Type | Description | 
| --- | --- |
| `oid` `oid` | Row identifier |
| `conname` `name` | Conversion name (unique within a namespace) |
| `connamespace` `oid` (references [pg_namespace](catalog-pg-namespace.md).`oid`) | The OID of the namespace that contains this conversion |
| `conowner` `oid` (references [pg_authid](catalog-pg-authid.md).`oid`) | Owner of the conversion |
| `conforencoding` `int4` | Source encoding ID ([`pg_encoding_to_char()`](functions-info.md#pg-encoding-to-char) can translate this number to the encoding name) |
| `contoencoding` `int4` | Destination encoding ID ([`pg_encoding_to_char()`](functions-info.md#pg-encoding-to-char) can translate this number to the encoding name) |
| `conproc` `regproc` (references [pg_proc](catalog-pg-proc.md).`oid`) | Conversion function |
| `condefault` `bool` | True if this is the default conversion |