PostGIS 1.5.8 Manual - Fedora Project Packages GIT repositories

PostGIS 1.5.8 Manual152 / 310DescriptionThe && operator returns TRUE if the bounding box of geometry A overlaps the bounding box of geometry B.NoteThis operand will make use of any indexes that may be available on the geometries.Availability: 1.5.0 support for geography was introduced.This method supports Circular Strings and CurvesExamplesSELECT tbl1.column1, tbl2.column1, tbl1.column2 && tbl2.column2 AS overlapsFROM ( VALUES(1, ’LINESTRING(0 0, 3 3)’::geometry),(2, ’LINESTRING(0 1, 0 5)’::geometry)) AS tbl1,( VALUES(3, ’LINESTRING(1 2, 4 6)’::geometry)) AS tbl2;column1 | column1 | overlaps---------+---------+----------1 | 3 | t2 | 3 | f(2 rows)See Also|&>, &>, &