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# Changelog
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## [integrations/pgvector-v6.1.0] - 2026-01-28
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### 🚀 Features
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- Adding count, filtering and metadata related operations to `PGVectorDocumentStore` (#2768)
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## [integrations/pgvector-v6.0.0] - 2026-01-12
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### 🧹 Chores
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- Make fmt command more forgiving (#2671)
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- [**breaking**] Pgvector - drop Python 3.9 and use X|Y typing (#2722)
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### 🌀 Miscellaneous
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- Fix: Fix doc links (#2661)
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## [integrations/pgvector-v5.5.0] - 2026-01-02
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### 🚀 Features
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- Adding `update_by_filter` and `delete_by_filter` to PgVector document store (#2647)
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## [integrations/pgvector-v5.4.0] - 2025-12-05
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### 📚 Documentation
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- Add pydoc configurations for Docusaurus (#2411)
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### ⚙️ CI
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- Change pytest command (#2475)
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### 🧹 Chores
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- Remove Readme API CI workflow and configs (#2573)
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- Pgvector - document expected connection string and raise informative error (#2583)
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### 🌀 Miscellaneous
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- Enhancement: Adopt PEP 585 type hinting (part 5) (#2528)
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## [integrations/pgvector-v5.3.0] - 2025-10-17
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### 🚀 Features
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- `PgvectorDocumentStore` now supports `delete_all_documents` and `delete_all_documents_async` (#2394)
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### 🧹 Chores
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- Standardize readmes - part 2 (#2205)
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## [integrations/pgvector-v5.2.1] - 2025-07-03
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### 🐛 Bug Fixes
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- Pgvector - ensure DB is initialized when calling `delete_table` (#2055)
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### 🧹 Chores
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- Remove black (#1985)
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- Pgvector - update docker image in examples (#1995)
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## [integrations/pgvector-v3.4.1] - 2025-06-20
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### 🐛 Bug Fixes
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- Pgvector - do not pass null `meta` to `Document.from_dict` (#1980)
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## [integrations/pgvector-v3.4.0] - 2025-06-10
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### 🐛 Bug Fixes
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- Fix pgvector types + add py.typed (#1914)
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### 🧹 Chores
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- Align core-integrations Hatch scripts (#1898)
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- Update md files for new hatch scripts (#1911)
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## [integrations/pgvector-v3.3.1] - 2025-05-28
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### 🌀 Miscellaneous
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- Add pins for Pgvector (#1849)
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## [integrations/pgvector-v3.3.0] - 2025-05-06
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### 🚀 Features
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- Pgvector - make error messages more informative (#1684)
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## [integrations/pgvector-v3.2.0] - 2025-04-11
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### 🚀 Features
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- Add halfvec support for storing high-dimensional embeddings in half-precision (#1607)
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## [integrations/pgvector-v3.1.0] - 2025-03-20
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### 🚀 Features
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- Pgvector - async support (+ refactoring) (#1547)
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### ⚙️ CI
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- Review testing workflows (#1541)
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## [integrations/pgvector-v3.0.1] - 2025-03-12
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### 🌀 Miscellaneous
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- Fix: pgvector - improve `_create_table_if_not_exists` to be used without admin rights (#1490)
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## [integrations/pgvector-v3.0.0] - 2025-03-11
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### 🧹 Chores
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- Remove Python 3.8 support (#1421)
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- Use Haystack logging across integrations (#1484)
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- Pgvector - pin haystack and remove dataframe checks (#1518)
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## [integrations/pgvector-v2.0.0] - 2025-02-13
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### 🧹 Chores
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- Pgvector - remove support for dataframe (#1370)
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## [integrations/pgvector-v1.3.0] - 2025-02-03
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### 🚀 Features
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- Pgvector - add like and not like filters (#1341)
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### 🧹 Chores
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- Inherit from `FilterDocumentsTestWithDataframe` in Document Stores (#1290)
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## [integrations/pgvector-v1.2.1] - 2025-01-10
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### 🐛 Bug Fixes
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- PgvectorDocumentStore - use appropriate schema name if dropping index (#1277)
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## [integrations/pgvector-v1.2.0] - 2024-11-22
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### 🚀 Features
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- Add `create_extension` parameter to control vector extension creation (#1213)
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## [integrations/pgvector-v1.1.0] - 2024-11-21
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### 🚀 Features
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- Add filter_policy to pgvector integration (#820)
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- Add schema support to pgvector document store. (#1095)
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- Pgvector - recreate the connection if it is no longer valid (#1202)
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### 🐛 Bug Fixes
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- `PgVector` - Fallback to default filter policy when deserializing retrievers without the init parameter (#900)
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### 📚 Documentation
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- Explain different connection string formats in the docstring (#1132)
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### 🧪 Testing
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- Do not retry tests in `hatch run test` command (#954)
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### ⚙️ CI
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- Retry tests to reduce flakyness (#836)
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- Adopt uv as installer (#1142)
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### 🧹 Chores
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- Update ruff invocation to include check parameter (#853)
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- PgVector - remove legacy filter support (#1068)
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- Update changelog after removing legacy filters (#1083)
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- Update ruff linting scripts and settings (#1105)
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### 🌀 Miscellaneous
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- Ci: install `pytest-rerunfailures` where needed; add retry config to `test-cov` script (#845)
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- Chore: Minor retriever pydoc fix (#884)
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- Chore: Update pgvector test for the new `apply_filter_policy` usage (#970)
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- Chore: pgvector ruff update, don't ruff tests (#984)
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## [integrations/pgvector-v0.4.0] - 2024-06-20
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### 🚀 Features
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- Defer the database connection to when it's needed (#773)
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- Add customizable index names for pgvector (#818)
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### 🌀 Miscellaneous
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- Docs: add missing api references (#728)
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- [deepset-ai/haystack-core-integrations#727] (#738)
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## [integrations/pgvector-v0.2.0] - 2024-05-08
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### 🚀 Features
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- `MongoDBAtlasEmbeddingRetriever` (#427)
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- Implement keyword retrieval for pgvector integration (#644)
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### 🐛 Bug Fixes
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- Fix order of API docs (#447)
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### 📚 Documentation
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- Update category slug (#442)
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- Disable-class-def (#556)
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### 🌀 Miscellaneous
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- Pgvector - review docstrings and API reference (#502)
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- Refactor tests (#574)
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- Remove references to Python 3.7 (#601)
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- Make Document Stores initially skip `SparseEmbedding` (#606)
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- Chore: add license classifiers (#680)
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- Type hints in pgvector document store updated for 3.8 compability (#704)
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- Chore: change the pydoc renderer class (#718)
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## [integrations/pgvector-v0.1.0] - 2024-02-14
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### 🐛 Bug Fixes
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- Pgvector: fix linting (#328)
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### 🌀 Miscellaneous
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- Pgvector Document Store - minimal implementation (#239)
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- Pgvector - filters (#257)
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- Pgvector - embedding retrieval (#298)
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- Pgvector - Embedding Retriever (#320)
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- Pgvector: generate API docs (#325)
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- Pgvector: add an example (#334)
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- Adopt `Secret` to pgvector (#402)
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<!-- generated by git-cliff -->

integrations/pgvector2/LICENSE.txt

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integrations/pgvector2/README.md

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# pgvector-haystack
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[![PyPI - Version](https://img.shields.io/pypi/v/pgvector-haystack.svg)](https://pypi.org/project/pgvector-haystack)
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[![PyPI - Python Version](https://img.shields.io/pypi/pyversions/pgvector-haystack.svg)](https://pypi.org/project/pgvector-haystack)
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- [Integration page](https://haystack.deepset.ai/integrations/pgvector-documentstore)
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- [Changelog](https://github.com/deepset-ai/haystack-core-integrations/blob/main/integrations/pgvector/CHANGELOG.md)
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---
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Refer to the general [Contribution Guidelines](https://github.com/deepset-ai/haystack-core-integrations/blob/main/CONTRIBUTING.md).
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To run integration tests locally, you need to have a PostgreSQL DB running with the `pgvector` extension.
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You can start it using Docker:
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```console
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docker run -d -p 5432:5432 -e POSTGRES_USER=postgres -e POSTGRES_PASSWORD=postgres -e POSTGRES_DB=postgres pgvector/pgvector:pg17
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```

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