How to convert a float32 to a pgtype.Numeric

[oliviernguyenquoc]

How to convert an unknow float32 value to a pgtype.Numeric ?

Tests in the code are not clear due to the structure of pgtype.Numeric:

type Numeric struct {
	Int              *big.Int
	Exp              int32
	NaN              bool
	InfinityModifier InfinityModifier
	Valid            bool
}