Iterator not returning a property

Support
1

Have this very simple python code:

def main():
    client = init_weaviate_client()
    try:
        collection = client.collections.get(os.getenv("COP_COPERTINE_COLLNAME"))
        extractor = ManifestoGPTExtractor()
        for obj in collection.iterator():
            extractor.process_object(collection, obj)
    finally:
        client.close()

and I have a breakpoint on the process_object line and inspecting the obj variable I see:

image
image1156×740 74 KB

where you can see we do NOT have a “editionImageStr” property which should hold a 250-300K Base64 image.

I am positive that ALL objects in the collection DO HAVE that property as you can see from just a snapshot of one of them through Postman on the same collection:

image
image2264×1728 378 KB

cannot find any details on why iterate() is apparently “losing” that BLOB property. I found a post by @sebawita speaking of a search function:

The Python client v4, doesn’t return blob properties by default, as these are potentially large values.
However, if you run a query with return_properties , I would expect values for the selected properties to be present.

but I cannot find a way for this to work with the iterator(). May this “bug” be related?

Here is the collection definition:

COPERTINE_COLL_CONFIG = {
    "class": COP_COPERTINE_COLLNAME,  
    "description": "Collection of Il Manifesto newspaper covers",
    "vectorizer": "none",  
    "properties": [
        Property(
            name="editionId", 
            data_type=DataType.TEXT,
            description="Unique identifier for the edition",
            tokenization="field",
            index_searchable=False
        ),
        Property(
            name="editionDateIsoStr",
            data_type=DataType.DATE,
            description="Publication date of the edition"
        ),
        Property(
            name="editionImageStr",
            data_type=DataType.BLOB,  
            description="Base64 encoded image string"
        ),
        Property(
            name="captionAIStr",
            data_type=DataType.TEXT,  
            description="Image caption as recognized by the AI model"
        ),
        Property(
            name="imageAIDeStr",
            data_type=DataType.TEXT,  
            description="Image description as generated by the AI model"
        ),
        Property(
            name="modelAIName",
            data_type=DataType.TEXT,  
            description="AI model name",
            tokenization="field",
            index_searchable=False
        ),
    ]
}

I do need to iterate on this collection and process the images attached to each object in that property. Thanks

Server Setup Information

  • Weaviate Server Version: 1.25.4
  • Deployment Method: docker
  • Multi Node? No
  • Client Language and Version: Python 4.10.2
  • Multitenancy?: No