Name
&<| — Returns TRUE if A's bounding box overlaps or is below B's.
Synopsis
boolean &<|( geometry A , geometry B );
Descrizione
The &<| operator returns TRUE if the bounding box of geometry A overlaps or is below of the bounding box of geometry B, or more accurately, overlaps or is NOT above the bounding box of geometry B.
Questo metodo supporta le Curve e le Circular String.
Questa funzione supporta le Polyhedral Surface.
![[Note]](../images/note.png)
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This operand will make use of any indexes that may be available on the geometries. |
Esempi
SELECT tbl1.column1, tbl2.column1, tbl1.column2 &<| tbl2.column2 AS overbelow
FROM
( VALUES
(1, 'LINESTRING(6 0, 6 4)'::geometry)) AS tbl1,
( VALUES
(2, 'LINESTRING(0 0, 3 3)'::geometry),
(3, 'LINESTRING(0 1, 0 5)'::geometry),
(4, 'LINESTRING(1 2, 4 6)'::geometry)) AS tbl2;
column1 | column1 | overbelow
---------+---------+-----------
1 | 2 | f
1 | 3 | t
1 | 4 | t
(3 rows)