Use Federated Search
Federated search lets you query across multiple collections in Fusion. This is useful if you keep separate data collections for security or compliance reasons or maintain different collections based on data type.
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In the Fusion workspace, navigate to Querying > Query Workbench.
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Click Solr Query to open the Solr Query panel.
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Enable Allow Federated Search then click Apply.
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In the workbench area, click Parameters then click Edit Parameters.
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Click Add
to add a parameter. For the Name, enter
collection
and for the Parameter Value, enter a comma-separated list of collections you want to query. For example,movies-collection,books-collection,music-collection
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Click Close.
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Check that your pipeline is querying documents from all specified collections.