221 lines
6.5 KiB
Markdown
221 lines
6.5 KiB
Markdown
---
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layout: default
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title: Range
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parent: Term-level queries
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grand_parent: Query DSL
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nav_order: 50
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---
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# Range query
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You can search for a range of values in a field with the `range` query.
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To search for documents in which the `line_id` value is >= 10 and <= 20, use the following request:
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```json
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GET shakespeare/_search
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{
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"query": {
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"range": {
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"line_id": {
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"gte": 10,
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"lte": 20
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}
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}
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}
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}
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```
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{% include copy-curl.html %}
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## Operators
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The field parameter in the range query accepts the following optional operator parameters:
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- `gte`: Greater than or equal to
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- `gt`: Greater than
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- `lte`: Less than or equal to
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- `lt`: Less than
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## Date fields
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You can use range queries on fields containing dates. For example, assume that you have a `products` index and you want to find all the products that were added in the year 2019:
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```json
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GET products/_search
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{
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"query": {
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"range": {
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"created": {
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"gte": "2019/01/01",
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"lte": "2019/12/31"
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}
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}
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}
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}
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```
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{% include copy-curl.html %}
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### Format
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To use a date format other than the field's mapped format in a query, specify it in the `format` field.
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For example, if the `products` index maps the `created` field as `strict_date_optional_time`, you can specify a different format for a query date as follows:
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```json
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GET /products/_search
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{
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"query": {
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"range": {
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"created": {
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"gte": "01/01/2022",
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"lte": "31/12/2022",
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"format":"dd/MM/yyyy"
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}
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}
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}
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}
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```
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{% include copy-curl.html %}
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### Missing date components
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OpenSearch populates missing date components with the following values:
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- `MONTH_OF_YEAR`: `01`
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- `DAY_OF_MONTH`: `01`
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- `HOUR_OF_DAY`: `23`
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- `MINUTE_OF_HOUR`: `59`
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- `SECOND_OF_MINUTE`: `59`
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- `NANO_OF_SECOND`: `999_999_999`
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If the year is missing, it is not populated.
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For example, consider the following request that specifies only the year in the start date:
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```json
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GET /products/_search
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{
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"query": {
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"range": {
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"created": {
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"gte": "2022",
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"lte": "2022-12-31"
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}
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}
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}
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}
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```
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{% include copy-curl.html %}
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The start date is populated with the default values, so the `gte` parameter used is `2022-01-01T23:59:59.999999999Z`.
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### Relative dates
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You can specify relative dates by using [date math]({{site.url}}{{site.baseurl}}/opensearch/supported-field-types/date/#date-math).
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To subtract 1 year and 1 day from the specified date, use the following query:
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```json
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GET products/_search
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{
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"query": {
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"range": {
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"created": {
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"gte": "2019/01/01||-1y-1d"
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}
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}
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}
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}
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```
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{% include copy-curl.html %}
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In the preceding example, `2019/01/01` is the anchor date (the starting point) for the date math. After the two pipe characters (`||`), you are specifying a mathematical expression relative to the anchor date. In this example, you are subtracting 1 year (`-1y`) and 1 day (`-1d`).
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You can also round off dates by adding a forward slash to the date or time unit.
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To find products added within the last year, rounded off by month, use the following query:
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```json
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GET products/_search
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{
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"query": {
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"range": {
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"created": {
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"gte": "now-1y/M"
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}
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}
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}
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}
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```
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{% include copy-curl.html %}
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The keyword `now` refers to the current date and time.
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{: .tip}
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### Rounding relative dates
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The following table specifies how relative dates are rounded.
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Parameter | Rounding rule | Example: The value `2022-05-18||/M` is rounded to
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:--- | :--- | :---
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`gt` | Rounds up to the first millisecond that is not in the rounding interval. | `2022-06-01T00:00:00.000`
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`gte` | Rounds down to the first millisecond. | `2022-05-01T00:00:00.000`
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`lt` | Rounds down to the last millisecond before the rounded date. | `2022-04-30T23:59:59.999`
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`lte` | Rounds up to the last millisecond in the rounding interval. | `2022-05-31T23:59:59.999`
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### Time zone
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To convert `date` values to [Coordinated Universal Time (UTC)](https://en.wikipedia.org/wiki/Coordinated_Universal_Time) using a [UTC offset](https://en.wikipedia.org/wiki/UTC_offset), use the `time_zone` parameter:
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```json
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GET /products/_search
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{
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"query": {
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"range": {
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"created": {
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"time_zone": "-04:00",
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"gte": "2022-04-17T06:00:00"
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}
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}
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}
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}
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```
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{% include copy-curl.html %}
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The preceding query specifies the `-04:00` offset, so the `gte` parameter is converted to `2022-04-17T02:00:00 UTC`.
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The `time_zone` parameter does not affect the `now` value.
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{: .note}
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## Parameters
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The query accepts the name of the field (`<field>`) as a top-level parameter:
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```json
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GET _search
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{
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"query": {
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"range": {
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"<field>": {
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"gt": 10,
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...
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}
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}
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}
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}
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```
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{% include copy-curl.html %}
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In addition to [operators](#operators), you can specify the following optional parameters for the `<field>`.
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Parameter | Data type | Description
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:--- | :--- | :---
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`format` | String | A [format]({{site.url}}{{site.baseurl}}/opensearch/supported-field-types/date/#formats) for dates in this query. Default is the field's mapped format.
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`relation` | String | Indicates how the range query matches values for [`range`]({{site.url}}{{site.baseurl}}/opensearch/supported-field-types/range/) fields. Valid values are:<br> - `INTERSECTS` (default): Matches documents whose `range` field value intersects the range provided in the query. <br> - `CONTAINS`: Matches documents whose `range` field value contains the entire range provided in the query. <br> - `WITHIN`: Matches documents whose `range` field value is entirely within the range provided in the query.
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`boost` | Floating-point | Boosts the query by the given multiplier. Useful for searches that contain more than one query. Values in the [0, 1) range decrease relevance, and values greater than 1 increase relevance. Default is `1`.
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`time_zone` | String | The time zone used to convert [`date`]({{site.url}}{{site.baseurl}}/opensearch/supported-field-types/date/) values to UTC in the query. Valid values are ISO 8601 [UTC offsets](https://en.wikipedia.org/wiki/List_of_UTC_offsets) and [IANA time zone IDs](https://en.wikipedia.org/wiki/List_of_tz_database_time_zones). For more information, see [Time zone](#time-zone).
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If [`search.allow_expensive_queries`]({{site.url}}{{site.baseurl}}/query-dsl/index/#expensive-queries) is set to `false`, range queries on [`text`]({{site.url}}{{site.baseurl}}/opensearch/supported-field-types/text/) and [`keyword`]({{site.url}}{{site.baseurl}}/opensearch/supported-field-types/keyword/) fields are not run.
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{: .important}
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