BLOB type (Python)

Use the blob type for binary data.

Although you can store binary-encoded vector data in a blob column, you cannot create a vector index or perform a vector search on the column. Instead, use the vector type to store vector data.

Due to a known issue with filtering on blob, DataStax does not recommend using blob in primary keys.

You can insert binary data to a blob column as a Base64-encoded string with $binary or as a bytes value.

The Python client returns binary data received from the Data API as a bytes value, even if it was inserted as a Base64-encoded string.

from astrapy import DataAPIClient

# Get an existing table
client = DataAPIClient()
database = client.get_database(
    "API_ENDPOINT", token="APPLICATION_TOKEN"
)
table = database.get_table("TABLE_NAME")

# Insert binary values
result = table.insert_one(
    {
        "example_blob": b"=\xfb\xe7m>\xe9x\xd5?I\xfb\xe7",
        "another_example_blob": {"$binary": "PfvnbT7peNU/Sfvn"},
        "title": "Example",
    }
)

BLOB type (Python)

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