DateTimeAggregate extension
Provides aggregate functions that are available on date time expressions.
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Methods
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  avg({Expression< bool> ? filter}) → Expression<DateTime> 
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      Available on Expression< Return the average of all non-null values in this group. To only consider rows matching a predicate, you can set the optionalDateTime> , provided by the DateTimeAggregate extensionfilter. Note thatfilteris only available from sqlite 3.30, released on 2019-10-04. Most devices will use an older sqlite version.
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  max({Expression< bool> ? filter}) → Expression<DateTime> 
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      Available on Expression< Return the maximum of all non-null values in this group.DateTime> , provided by the DateTimeAggregate extension
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  min({Expression< bool> ? filter}) → Expression<DateTime> 
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      Available on Expression< Return the minimum of all non-null values in this group.DateTime> , provided by the DateTimeAggregate extension