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16 lines
398 B
Plaintext
16 lines
398 B
Plaintext
{
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"name": "z",
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"type": "function",
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"groups": ["GeometryGroup"],
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"description": "Returns the z coordinate of a point geometry, or NULL if the geometry has no z value.",
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"arguments": [{
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"arg": "geometry",
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"description": "a point geometry"
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}],
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"examples": [{
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"expression": "z( geom_from_wkt( 'POINTZ(2 5 7)' ) )",
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"returns": "7"
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}],
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"tags": ["point", "coordinate"]
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}
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