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Eduard van Valkenburg 003cc4c010 Python: Feature python vector stores preb (#12271)
### Motivation and Context

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Overhaul of the VectorStores to get it matching with dotnet and the
latest development there.

Closes: 
- #11938 
- #11598 
- #11597
- #11517 
- #10561 
- #10391 
- #9911 
- #9892 
- #10867 

### Description

<!-- Describe your changes, the overall approach, the underlying design.
These notes will help understanding how your code works. Thanks! -->

Many changes, some highlights:
- Moved from different vector fields types, to a single with a enum
first VectorStoreField()
- Renamed several items
- Made embeddinggenerrator a part of the vector field spec and do
automatic vectorization from there or from the same param on a
collection
- Adds hybrid search using the same setup
- Removed the intermediate TextSeachVectorSearch object need, by
allowing `create_search_function` directly on a collection

Will write out full changes in a migration guide in the docs.

### Contribution Checklist

<!-- Before submitting this PR, please make sure: -->

- [x] The code builds clean without any errors or warnings
- [x] The PR follows the [SK Contribution
Guidelines](https://github.com/microsoft/semantic-kernel/blob/main/CONTRIBUTING.md)
and the [pre-submission formatting
script](https://github.com/microsoft/semantic-kernel/blob/main/CONTRIBUTING.md#development-scripts)
raises no violations
- [x] All unit tests pass, and I have added new tests where possible
- [ ] I didn't break anyone 😄
2025-06-19 18:34:59 +00:00

73 lines
2.5 KiB
Python

# Copyright (c) Microsoft. All rights reserved.
import asyncio
from uuid import uuid4
import pandas as pd
from semantic_kernel.connectors.ai.open_ai import OpenAITextEmbedding
from semantic_kernel.connectors.azure_ai_search import AzureAISearchCollection
from semantic_kernel.data.vector import VectorStoreCollectionDefinition, VectorStoreField
definition = VectorStoreCollectionDefinition(
collection_name="pandas_test_index",
fields=[
VectorStoreField("key", name="id", type="str"),
VectorStoreField("data", name="title", type="str"),
VectorStoreField("data", name="content", type="str", is_full_text_indexed=True),
VectorStoreField(
"vector",
name="vector",
type="float",
dimensions=1536,
embedding_generator=OpenAITextEmbedding(ai_model_id="text-embedding-3-small"),
),
],
to_dict=lambda record, **_: record.to_dict(orient="records"),
from_dict=lambda records, **_: pd.DataFrame(records),
container_mode=True,
)
async def main():
# create the record collection
async with AzureAISearchCollection[str, pd.DataFrame](
record_type=pd.DataFrame,
definition=definition,
) as collection:
await collection.ensure_collection_exists()
# create some records
records = [
{
"id": str(uuid4()),
"title": "Document about Semantic Kernel.",
"content": "Semantic Kernel is a framework for building AI applications.",
},
{
"id": str(uuid4()),
"title": "Document about Python",
"content": "Python is a programming language that lets you work quickly.",
},
]
# create the dataframe and add the content you want to embed to a new column
df = pd.DataFrame(records)
df["vector"] = df.apply(lambda row: f"title: {row['title']}, content: {row['content']}", axis=1)
print(df.head(1))
# upsert the records (for a container, upsert and upsert_batch are equivalent)
await collection.upsert(df)
# retrieve a record
result = await collection.get(top=2)
if result is None:
print("No records found, this is sometimes because the get is too fast and the index is not ready yet.")
else:
print("Retrieved records:")
print(result.to_string())
await collection.ensure_collection_deleted()
if __name__ == "__main__":
asyncio.run(main())