[Bug]: PropertyGraphIndex Value for metadata features must be one of (str, int, float, None)

[haoyuhan1]

Bug Description

I am using the DynamicLLMPathExtractor with allowed_entity_props=[]. It will generate some properties for iPad like: {'generation': '10th', 'storage': '64GB', 'price': '$349',
'features': ['Liquid Retina display', 'A14 Bionic chip', 'USB-C
charging'],

In the _insert_nodes_to_vector_index function, the self.vector_store.add(llama_nodes) will raise error as it requires "Value for metadata features must be one of (str, int, float, None)"

Version

0.12.2

Steps to Reproduce

DynamicLLMPathExtractor with allowed_entity_props=[]

Relevant Logs/Tracbacks

No response

[dosubot]

Hey @haoyuhan1! I'm here to help you with any bugs, questions, or contributions you have. If you need assistance, feel free to ask!

The error you're encountering is due to the self.vector_store.add(llama_nodes) method, which requires metadata feature values to be of type str, int, float, or None. The list data type in your metadata (e.g., features: ['Liquid Retina display', 'A14 Bionic chip', 'USB-C charging']) is causing the issue.

To resolve this, you can convert list data types in your metadata to a string format before inserting them into the vector store. For example, you can join the list items into a single string:

metadata['features'] = ', '.join(metadata['features'])

This conversion will ensure that all metadata values are of an acceptable type for the vector store.

To continue talking to Dosu, mention @dosu.

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