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| |
| # ST_XMax |
| |
| Introduction: Return the maximum X coordinate of a `Box2D` value. This is the same function as the [Geometry-input form](../../Bounding-Box-Functions/ST_XMax.md), overloaded to accept a `Box2D`. |
| |
| Format: `ST_XMax(box: Box2D)` |
| |
| Return type: `Double` |
| |
| Since: `v1.9.1` |
| |
| SQL Example |
| |
| ```sql |
| SELECT ST_XMax(ST_MakeBox2D(ST_Point(0.0, 0.0), ST_Point(10.0, 20.0))) |
| ``` |
| |
| Output: |
| |
| ``` |
| 10.0 |
| ``` |
| |
| Returns `NULL` on `NULL` input. |
