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28 lines
905 B
Plaintext
28 lines
905 B
Plaintext
{
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"name": "is_empty_or_null",
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"type": "function",
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"groups": ["GeometryGroup"],
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"description": "Returns TRUE if a geometry is NULL or empty (without coordinates) or false otherwise. This function is like the expression '@geometry IS NULL or is_empty(@geometry)'",
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"arguments": [{
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"arg": "geometry",
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"description": "a geometry"
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}],
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"examples": [{
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"expression": "is_empty_or_null(NULL)",
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"returns": "TRUE"
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}, {
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"expression": "is_empty_or_null(geom_from_wkt('LINESTRING(0 0, 1 1, 2 2)'))",
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"returns": "FALSE"
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}, {
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"expression": "is_empty_or_null(geom_from_wkt('LINESTRING EMPTY'))",
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"returns": "TRUE"
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}, {
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"expression": "is_empty_or_null(geom_from_wkt('POINT(7 4)'))",
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"returns": "FALSE"
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}, {
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"expression": "is_empty_or_null(geom_from_wkt('POINT EMPTY'))",
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"returns": "TRUE"
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}],
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"tags": ["empty", "is_empty", "coordinates", "false"]
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}
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