Exact match queries
Perform simple exact match queries
An exact match query allows you to select all documents where a field matches a specific value.
You can use exact match queries on several field types. The query syntax varies depending on the type.
The examples in this article use a schema with the following fields:
| Field name | Field type |
|---|---|
description |
TEXT |
condition |
TAG |
price |
NUMERIC |
You can find more details about creating the index and loading the demo data in the quick start guide.
Numeric field
To perform an exact match query on a numeric field, you need to construct a range query with the same start and end value:
FT.SEARCH index "@field:[start end]"
As described in the article about range queries, you can also use the FILTER argument:
FT.SEARCH index "*" FILTER field start end
The following examples show you how to query for bicycles with a price of exactly 270 USD:
FT.SEARCH idx:bicycle "@price:[270 270]"
FT.SEARCH idx:bicycle "*" FILTER price 270 270
Tag field
A tag is a short sequence of text, for example, "new" or "Los Angeles".
You can construct a tag query for a single tag in the following way:
FT.SEARCH index "@field:{tag}"
This short example shows you how to query for new bicycles:
FT.SEARCH idx:bicycle "@condition:{new}"
Full-text field
A detailed explanation of full-text queries is available in the full-text queries documentation. You can also query for an exact match of a phrase within a text field:
FT.SEARCH index "@field:\"phrase\""
The phrase must be wrapped by escaped double quotes for an exact match query.
You can't use a phrase that starts with a stop word.
Here is an example for finding all bicycles that have a description containing the exact text 'rough terrain':
FT.SEARCH idx:bicycle "@description:\"rough terrain\""