Multi-index or federated search

Execute multiple search queries across different indexes.

Without the federation parameter, results are returned separately per query (multi-search mode).

With the federation parameter, results are merged across indexes and sorted by relevance (federated search mode).

Multi-Search Mode

Returns separate result sets for each query, maintaining index boundaries. Use this when you need to:

  • Display results grouped by entity type
  • Apply different filters/sorts per index
  • Maintain separate pagination per index

Federated Search Mode

Merges results across all queries into a single ranked list. Use this when you need:

  • Unified search across multiple entity types
  • Single result set sorted by relevance
  • Combined pagination across all indexes
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