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https://github.com/milvus-io/milvus/issues/35528 This PR adds json index support for json and dynamic fields. Now you can only do unary query like 'a["b"] > 1' using this index. We will support more filter type later. basic usage: ``` collection.create_index("json_field", {"index_type": "INVERTED", "params": {"json_cast_type": DataType.STRING, "json_path": 'json_field["a"]["b"]'}}) ``` There are some limits to use this index: 1. If a record does not have the json path you specify, it will be ignored and there will not be an error. 2. If a value of the json path fails to be cast to the type you specify, it will be ignored and there will not be an error. 3. A specific json path can have only one json index. 4. If you try to create more than one json indexes for one json field, sdk(pymilvus<=2.4.7) may return immediately because of internal implementation. This will be fixed in a later version. --------- Signed-off-by: sunby <sunbingyi1992@gmail.com>