&< — Returns `TRUE`

if A's bounding box overlaps or is to the left of B's.

`boolean `

geometry
**&<**(`A`
,
geometry
`B`
`)`

;

The `&<`

operator returns `TRUE`

if the bounding box of geometry A
overlaps or is to the left of the bounding box of geometry B, or more accurately, overlaps or is NOT to the right
of the bounding box of geometry B.

This operand will make use of any indexes that may be available on the geometries. |

SELECT tbl1.column1, tbl2.column1, tbl1.column2 &< tbl2.column2 AS overleft FROM ( VALUES (1, 'LINESTRING(1 2, 4 6)'::geometry)) AS tbl1, ( VALUES (2, 'LINESTRING(0 0, 3 3)'::geometry), (3, 'LINESTRING(0 1, 0 5)'::geometry), (4, 'LINESTRING(6 0, 6 1)'::geometry)) AS tbl2; column1 | column1 | overleft ---------+---------+---------- 1 | 2 | f 1 | 3 | f 1 | 4 | t (3 rows)