[sqlite] SQLite Is Not Support Uint64?

I insert a value 18446744072708321492 as a integer into the table. In C code,sqlite3_column_type tells me is a type of 2, which is float point value. And I usesqlite3_column_double to get it. It returns18446744072708321280, which is already lost theaccuracy. Is SQLite not support Uint64 value,

[sqlite] SQLite Is Not Support Uint64?

It doesn't support unsigned integers natively, but most of the time it will effectively upconvert to a larger signed integer. In the case where it's greater than the maximum int8 it obviously cannot upconvert, so uses a floating point to approximate. https://www.sqlite.org/datatype3.html If you