Can't Set() Numeric from a string like "4.3e-5"

[juhaszp-uhu]

When populating a pgtype.Numeric variable with Set() from a string that contains a number in scientific (exponential) notation, I get a "not a number" error.

This self-contained example program demonstrates the issue:

package main

import (
	"fmt"
	"strconv"

	"github.com/jackc/pgtype"
)

func main() {
	cases := []string{
		"-1e+1",
		"4.3e-5",
		"4.3e-05",
		"4.3E-5",
		"0e0",
	}
	for _, numStr := range cases {
		numFloat, err := strconv.ParseFloat(numStr, 64)
		if err != nil {
			fmt.Printf("error parsing float: %v\n", err)
			continue
		}
		fmt.Printf("parsed float: %v\n", numFloat)

		var numField pgtype.Numeric
		err = numField.Set(numStr)
		if err != nil {
			fmt.Printf("error setting field: %v\n", err)
			continue
		}
		fmt.Printf("field set: %v\n", numField)
	}
}

I'd have expected that all of these example cases are recognized and parsed correctly.