# APPROX\_GEOGRAPHY\_INTERSECTS

This function is the fast approximate version of `GEOGRAPHY_INTERSECTS`. It takes in two geospatial objects and determines whether any part of them overlap.

Approximate results are obtained by consulting the geospatial indexes (if any) for matches, and skipping the filter phase which reduces the result set to objects that truly intersect. This means that the rows returned by this function will have false positives but no false negatives.

![Image of geographic area with intersecting lines overlaying the area](https://images.contentstack.io/v3/assets/bltac01ee6daa3a1e14/blt34371abeb6dd0e0e/6a318be6ab3ef30008d6aec3/approx_intersects-B9ePNK.png)

## Syntax

```
APPROX_GEOGRAPHY_INTERSECTS ( geo1, geo2 )

```

## Arguments

* geo1, geo2: any valid geospatial object or WKT string: path, point or polygon.

> **❗ Important**: If both geo1 and geo2 are points, this function only returns true if they are identical.

## Return Type

Boolean

## Examples

```sql
SELECT COUNT(1)
    -> FROM jogging_paths j1, jogging_paths j2
    -> WHERE
    -> APPROX_GEOGRAPHY_INTERSECTS(j1.shape, j2.shape);

```

```output

+----------+
| COUNT(1) |
+----------+
|    11569 |
+----------+

```

```sql
SELECT COUNT(1)
    -> FROM jogging_paths j1, jogging_paths j2
    -> WHERE
    -> GEOGRAPHY_INTERSECTS(j1.shape, j2.shape);

```

```output

+----------+
| COUNT(1) |
+----------+
|     9134 |
+----------+
```

```sql
 SELECT *
 FROM neighborhoods WITH (index = shape, resolution = 16)
 WHERE APPROX_GEOGRAPHY_INTERSECTS(shape,"POLYGON(...)");
```

> **❗ Important**: The with `(index = c, resolution = n)` syntax is an optional optimization discussed in [Special Spatial Tuning Parameters](https://docs.singlestore.com/db/v9.1/developer-resources/functional-extensions/working-with-geospatial-features/#section-idm4580499222051232485402848448.md).

## Related Topics

For more information about working with geospatial data, see [Working with Geospatial Features](https://docs.singlestore.com/db/v9.1/developer-resources/functional-extensions/working-with-geospatial-features.md).

***

Modified at: May 3, 2023

Source: [/db/v9.1/reference/sql-reference/geospatial-functions/approx-geography-intersects/](https://docs.singlestore.com/db/v9.1/reference/sql-reference/geospatial-functions/approx-geography-intersects/)

(An index of the documentation is available at /llms.txt)