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📘👐 Pre-Filtering

You can also pre-filter your data by indexing any boolean, date, numeric, objectId, string, and UUID fields in your collection that you want to run your Atlas Vector Search queries against.

Filtering your data narrows the scope of your search and ensures that certain vector embeddings aren't considered for comparison.

📚 About the filter type

Published after the year 2000​

CODE_BLOCK_11

Answer
{
    "name": ATLAS_VECTOR_SEARCH_INDEX_NAME,
    "type": "vectorSearch",
    "definition": {
        "fields": [
            {
                "type": "vector",
                "path": "embedding",
                "numDimensions": 512,
                "similarity": "cosine",
            },
            {"type": "filter", "path": "year"},
        ]
    },
}

CODE_BLOCK_12

Answer
{"year": {"$gte": 2000}}

Published after the year 2000 and under 100 pages​

CODE_BLOCK_13

Answer
{
    "name": ATLAS_VECTOR_SEARCH_INDEX_NAME,
    "type": "vectorSearch",
    "definition": {
        "fields": [
            {
                "type": "vector",
                "path": "embedding",
                "numDimensions": 512,
                "similarity": "cosine",
            },
            {"type": "filter", "path": "year"},
            {"type": "filter", "path": "pages"},
        ]
    },
}

CODE_BLOCK_14

Answer
{"$and": [{"year": {"$gte": 2000}}, {"pages": {"$lte": 100}}]}