% This is generated by ESQL's AbstractFunctionTestCase. Do no edit it. See ../README.md for how to regenerate it.

**Example**

```esql
FROM airport_city_boundaries
| WHERE abbrev == "CPH"
| EVAL envelope = ST_ENVELOPE(city_boundary)
| KEEP abbrev, airport, envelope
```

| abbrev:keyword | airport:text | envelope:geo_shape |
| --- | --- | --- |
| CPH | Copenhagen | BBOX(12.453, 12.6398, 55.7327, 55.6318) |