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App Building/Workflow/Nodes

Dataset search Merge

FastGPT Dataset search Merge node overview

What It Does

Merges search results from multiple Datasets into a single output, re-ranks them using RRF (Reciprocal Rank Fusion), and supports max token filtering.

Usage

The AI Chat node can only accept one Dataset citation input. If you call multiple Datasets, you cannot directly cite all of them (as shown below).

Use Dataset search Merge to combine results from multiple Datasets into one.

Example Use Cases

  1. After question classification, search different Datasets per category, then feed the merged results to a single AI Chat node. This avoids adding a separate AI Chat node to each branch.
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