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18 lines
947 B
Plaintext
18 lines
947 B
Plaintext
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{
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"function": "hour",
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"description": "Extract the hour part from a datetime or time, or the number of hours from an interval.",
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"variants": [
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{ "variant": "Time variant",
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"variant_description": "Extract the hour part from a time or datetime.",
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"arguments": [ {"arg":"datetime","description":"a time or datetime value"}],
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"examples": [ { "expression":"hour('2012-07-22T13:24:57')", "returns":"13"}] },
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{
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"variant": "Interval variant",
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"variant_description": "Calculate the length in hours of an interval.",
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"arguments": [ {"arg":"interval","description":"interval value to return number of hours from"}],
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"examples": [ { "expression":"hour(tointerval('3 hours'))", "returns":"3"},
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{ "expression":"hour(age('2012-07-22T13:00:00','2012-07-22T10:00:00'))", "returns":"3"},
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{ "expression":"hour(age('2012-01-01','2010-01-01'))", "returns":"17520"}]
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}]
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}
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