Categories:: Geospatial Functions

ST_INTERSECTS¶

Returns TRUE if the two GEOGRAPHY objects or the two GEOMETRY objects intersect (i.e. share any portion of space).

Note

This function does not support using a GeometryCollection or FeatureCollection as input values.

See also:: ST_DISJOINT

Syntax¶

ST_INTERSECTS( <geography_expression_1> , <geography_expression_2> )

ST_INTERSECTS( <geometry_expression_1> , <geometry_expression_2> )

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Arguments¶

geography_expression_1: A GEOGRAPHY object.
geography_expression_2: A GEOGRAPHY object.
geometry_expression_1: A GEOMETRY object.
geometry_expression_2: A GEOMETRY object.

Returns¶

BOOLEAN.

Usage Notes¶

For GEOMETRY objects, the function reports an error if the two input GEOMETRY objects have different SRIDs.

Examples¶

GEOGRAPHY Examples¶

This shows a simple use of the ST_INTERSECTS function:

SELECT ST_INTERSECTS(
    TO_GEOGRAPHY('POLYGON((0 0, 2 0, 2 2, 0 2, 0 0))'),
    TO_GEOGRAPHY('POLYGON((1 1, 3 1, 3 3, 1 3, 1 1))')
    );
+---------------------------------------------------------+
| ST_INTERSECTS(                                          |
|     TO_GEOGRAPHY('POLYGON((0 0, 2 0, 2 2, 0 2, 0 0))'), |
|     TO_GEOGRAPHY('POLYGON((1 1, 3 1, 3 3, 1 3, 1 1))')  |
|     )                                                   |
|---------------------------------------------------------|
| True                                                    |
+---------------------------------------------------------+

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GEOMETRY Examples¶

This shows a simple use of the ST_INTERSECTS function:

SELECT ST_INTERSECTS(
  TO_GEOMETRY('POLYGON((0 0, 0 2, 2 2, 2 0, 0 0))'),
  TO_GEOMETRY('POLYGON((1 1, 3 1, 3 3, 1 3, 1 1))')
);

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+------------------------------------------------------+
| ST_INTERSECTS(                                       |
|   TO_GEOMETRY('POLYGON((0 0, 0 2, 2 2, 2 0, 0 0))'), |
|   TO_GEOMETRY('POLYGON((1 1, 3 1, 3 3, 1 3, 1 1))')  |
| )                                                    |
|------------------------------------------------------|
| True                                                 |
+------------------------------------------------------+

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