# MyScaleTranslator

> **Class** in `langchain_community`

📖 [View in docs](https://reference.langchain.com/python/langchain-community/query_constructors/myscale/MyScaleTranslator)

Translate `MyScale` internal query language elements to valid filters.

## Signature

```python
MyScaleTranslator(
    self,
    metadata_key: str = 'metadata',
)
```

## Extends

- `Visitor`

## Constructors

```python
__init__(
    self,
    metadata_key: str = 'metadata',
) -> None
```

| Name | Type |
|------|------|
| `metadata_key` | `str` |


## Properties

- `allowed_operators`
- `allowed_comparators`
- `map_dict`
- `metadata_key`

## Methods

- [`visit_operation()`](https://reference.langchain.com/python/langchain-community/query_constructors/myscale/MyScaleTranslator/visit_operation)
- [`visit_comparison()`](https://reference.langchain.com/python/langchain-community/query_constructors/myscale/MyScaleTranslator/visit_comparison)
- [`visit_structured_query()`](https://reference.langchain.com/python/langchain-community/query_constructors/myscale/MyScaleTranslator/visit_structured_query)

---

[View source on GitHub](https://github.com/langchain-ai/langchain-community/blob/a6a6079511ac8a5c1293337f88096b8641562e77/libs/community/langchain_community/query_constructors/myscale.py#L50)