> ## Documentation Index
> Fetch the complete documentation index at: https://ancplua.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# AL0122 - [DuckDbTable] type must be partial

> The DuckDbInsertGenerator source generator creates additional methods (AddParameters, MapFromReader, BuildMultiRowInsertSql) on types marked with [DuckDbTable]

Source: [AL0122DuckDbTableMustBePartialAnalyzer.cs](https://github.com/ANcpLua/ANcpLua.Analyzers/blob/main/src/ANcpLua.Analyzers/Analyzers/AL0122DuckDbTableMustBePartialAnalyzer.cs)

## Description

The DuckDbInsertGenerator source generator creates additional methods (AddParameters, MapFromReader, BuildMultiRowInsertSql) on types marked with \[DuckDbTable]. The type must be partial so the generator can add these members.

## Properties

* **Category**: Design
* **Severity**: Error
* **Enabled by default**: True
* **Code fix available**: True

## Configuration

```editorconfig theme={null}
dotnet_diagnostic.AL0122.severity = error
```