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String field types
String field types contain text values or values derived from text. The following table lists all string field types that OpenSearch supports.
| Field data type | Description |
|---|---|
keyword | A string that is not analyzed. Useful for exact-value search. |
text | A string that is analyzed. Useful for full-text search. |
match_only_text | A space-optimized version of a text field. |
token_count | Counts the number of tokens in a string. |
constant_keyword | Similar to keyword but uses a single value for all documents. |
wildcard | A variation of keyword with efficient substring and regular expression matching. |