qdrant: Add metadata-based deletion support to QdrantVectorStore

[HarshitR2004]

Description
Added support for deleting documents by metadata filters in QdrantVectorStore. Previously, only ID-based deletion was possible.

How it works

• Finds points matching metadata filters using Qdrant’s scroll method
• Deletes them by ID

What's new

• delete() accepts **kwargs for metadata filtering
• Supports metadata field path construction (metadata.{key})
• Keeps existing ID-based deletion unchanged

Examples

vector_store.delete(ids=["id1", "id2"])           # Existing  
vector_store.delete(owner="admin")                # New  
vector_store.delete(type="document", status="draft")  

Tests

• Deletion by ID
• Deletion by metadata
• Handling invalid filters

[vercel]

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1 Skipped Deployment

Name	Status	Preview	Comments	Updated (UTC)
langchain	⬜️ Ignored (Inspect)	Visit Preview		Jun 24, 2025 6:12am

[codspeed-hq]

CodSpeed WallTime Performance Report

Merging #31712 will not alter performance

_{Comparing HarshitR2004:feat/qdrant-metadata-delete (65f7c32) with master (6d71b6b)}

⚠️ Unknown Walltime execution environment detected

Using the Walltime instrument on standard Hosted Runners will lead to inconsistent data.

For the most accurate results, we recommend using CodSpeed Macro Runners: bare-metal machines fine-tuned for performance measurement consistency.

Summary

✅ 13 untouched benchmarks

[codspeed-hq]

CodSpeed Instrumentation Performance Report

Merging #31712 will not alter performance

_{Comparing HarshitR2004:feat/qdrant-metadata-delete (65f7c32) with master (6d71b6b)}

Summary

✅ 13 untouched benchmarks