I can query a geometry extent like this:

```
select ST_Extent(geom) from tableName;

```

But sometimes I am querying geometries more than one. I am getting 5 points that different locations. So I wanto to zoom my map that containing this 5 points extent. Is this possible?

```
select geom from tableName where category='airport';

```

This gives me 5 airport. and I want to zoom this 5 point extent.