opensearch-docs-cn/_query-dsl/term/index.md

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Term-level queries

Term-level queries search an index for documents that contain an exact search term. Documents returned by a term-level query are not sorted by their relevance scores.

When working with text data, use term-level queries for fields mapped as keyword only.

Term-level queries are not suited for searching analyzed text fields. To return analyzed fields, use a full-text query.

Term-level query types

The following table lists all term-level query types.

Query type	Description
term	Searches for documents containing an exact term in a specific field.
terms	Searches for documents containing one or more terms in a specific field.
terms_set	Searches for documents that match a minimum number of terms in a specific field.
ids	Searches for documents by document ID.
range	Searches for documents with field values in a specific range.
prefix	Searches for documents containing terms that begin with a specific prefix.
exists	Searches for documents with any indexed value in a specific field.
fuzzy	Searches for documents containing terms that are similar to the search term within the maximum allowed Levenshtein distance. The Levenshtein distance measures the number of one-character changes needed to change one term to another term.
wildcard	Searches for documents containing terms that match a wildcard pattern.
regexp	Searches for documents containing terms that match a regular expression.