Is there an existing issue for the same feature request?

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Is your feature request related to a problem?

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Describe the feature you'd like

Rank Feature Query in ES is used in many enterprise scenarios. Infinity will provide similar feature accordingly.

A scenario is to provide hierarchical knowledge base in RAGFlow, the result is a combination of knowledge base with higher quality or higher priority with other general knowledge bases.

In order to support this feature, the column should have type of rank_feature or rank_features.
rank_feature can only support positive numeric values while rank_features can only support Map where the key must be string type and value must be positive numeric types that can be represented using 16bit.