## Name

@(box2df,geometry) — Returns `TRUE` if a 2D float precision bounding box (BOX2DF) is contained into a geometry's 2D bounding box.

## Synopsis

`boolean @(` box2df A , geometry B `)`;

## Description

The `@` operator returns `TRUE` if the 2D bounding box A is contained into the B geometry's 2D bounding box, using float precision. This means that if B is a (double precision) box2d, it will be internally converted to a float precision 2D bounding box (BOX2DF) This operand is intended to be used internally by BRIN indexes, more than by users.

Availability: 2.3.0 support for Block Range INdexes (BRIN) was introduced. Requires PostgreSQL 9.5+. This method supports Circular Strings and Curves. This function supports Polyhedral surfaces.

## Examples

```SELECT ST_MakeBox2D(ST_Point(2,2), ST_Point(3,3)) @ ST_Buffer(ST_GeomFromText('POINT(1 1)'), 10) AS is_contained;

is_contained
--------------
t
(1 row)```
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