# PGVectorTranslator

> **Class** in `langchain_postgres`

📖 [View in docs](https://reference.langchain.com/python/langchain-postgres/translator/PGVectorTranslator)

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

## Signature

```python
PGVectorTranslator()
```

## Extends

- `Visitor`

## Properties

- `allowed_operators`
- `allowed_comparators`

## Methods

- [`visit_operation()`](https://reference.langchain.com/python/langchain-postgres/translator/PGVectorTranslator/visit_operation)
- [`visit_comparison()`](https://reference.langchain.com/python/langchain-postgres/translator/PGVectorTranslator/visit_comparison)
- [`visit_structured_query()`](https://reference.langchain.com/python/langchain-postgres/translator/PGVectorTranslator/visit_structured_query)

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[View source on GitHub](https://github.com/langchain-ai/langchain-postgres/blob/9d819182da7e3fb1b815e6c9a6b7c2cd1eb4bc0e/langchain_postgres/translator.py#L13)