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Throw when an interval is out of range of TimeSpan - #6727
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Reading an interval as TimeSpan computed the ticks with unchecked arithmetic. An interval larger than TimeSpan.MaxValue, such as '300000000 hours', silently wrapped around and returned a wrong TimeSpan with the opposite sign. Compute the ticks with checked arithmetic and throw an InvalidCastException when the interval is outside the range of TimeSpan, as reading an interval with months already does.
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Fixes #
Reading an interval as
TimeSpancomputed the ticks with unchecked arithmetic, so an interval outside the range ofTimeSpan, such asinterval '300000000 hours', silently wrapped around and returned a wrongTimeSpanwith the opposite sign.This change computes the ticks with checked arithmetic and throws an
InvalidCastExceptionwhen the interval doesn't fit in aTimeSpan, the same exception type the converter already throws for intervals with months. The message suggests reading the value asNpgsqlIntervalor NodaTimePeriod.The new
Interval_out_of_TimeSpan_range_cannot_read_as_TimeSpantest covers a large positive hour count, a large negative hour count and a large day count. It fails without the fix and passes with it. I ranNpgsql.Tests.Types(828 passed, 3 skipped) against PostgreSQL 17.11 on Linux with .NET SDK 10.0.403.