# HNSWIterativeScanMode

> **Class** in `langchain_azure_postgresql`

📖 [View in docs](https://reference.langchain.com/python/langchain-azure-postgresql/common/_shared/HNSWIterativeScanMode)

Enumeration for HNSW iterative scan modes.

## Signature

```python
HNSWIterativeScanMode()
```

## Extends

- `str`
- `Enum`

## Properties

- `off`
- `relaxed`
- `strict`

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[View source on GitHub](https://github.com/langchain-ai/langchain-azure/blob/e62c2a55aaa0942fdac739b4066011953b80018e/libs/azure-postgresql/src/langchain_azure_postgresql/common/_shared.py#L415)