## Name

@(box2df,box2df) — Returns `TRUE`

if a 2D float precision bounding box (BOX2DF) is contained into another 2D float precision bounding box.

## Synopsis

`boolean `**@**(

box2df `A` , box2df `B` `)`

;

## 설명

The `@`

operator returns `TRUE`

if the 2D bounding box A is contained into the 2D bounding box B, using float precision. This means that if A (or B) is a (double precision) box2d, it will be internally converted to a float precision 2D bounding box (BOX2DF)

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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.

## 예시

SELECT ST_MakeBox2D(ST_Point(2,2), ST_Point(3,3)) @ ST_MakeBox2D(ST_Point(0,0), ST_Point(5,5)) AS is_contained;
is_contained
--------------
t
(1 row)

## 참고

&&(geometry,box2df), &&(box2df,geometry), &&(box2df,box2df), ~(geometry,box2df), ~(box2df,geometry), ~(box2df,box2df), @(geometry,box2df), @(box2df,geometry)