Date is not correctly saved

[LittleLydia]

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SQLite.swift version = 0.92
Xcode version = 14.1
macOS version = 13.2.1

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I use touch to create a new file ,zero bytes , like touch abcd.
then I read the modificationDate by using
let modifyDate = try FileManager.default.attributesOfItem(atPath: wholePath)[.modificationDate] as? Date
its description like this
`▿ 2023-06-07 02:14:52 +0000

• timeIntervalSinceReferenceDate : 707796892.7651631`

but after I fetch it from the db.sqlite, it turns out to be:
▿ 2023-06-07 02:14:52 +0000

• timeIntervalSinceReferenceDate : 707796892.7650001

Other files which is larger than zero bytes are fine. Just this one. I am really sure before I save it in the db, it is 707796892.7651631

Don't know why

[geoffmacd]

Precision is lost from the date formatter that is used internally to store the date.

If you need perfect precision you need to store dates as a double. Otherwise you cannot guarantee equality.

[LittleLydia]

Precision is lost from the date formatter that is used internally to store the date.

If you need perfect precision you need to store dates as a double. Otherwise you cannot guarantee equality.

OK. I got it. I solved this by saving timestamp. Thanks for the reason.