### Issue description I've inserted a "zero" time.Time object to a table with a DATETIME column, and get `Incorrect datetime value: '0000-00-00' for column` error. ### Example code The below code fails: ```go package main import ( "database/sql" "log" "time" _ "github.com/go-sql-driver/mysql" ) func main() { db, _ := sql.Open("mysql", "root:secret@(127.0.0.1:3306)/test") _, err := db.Exec("CREATE TABLE IF NOT EXISTS daty (col DATETIME)") if err != nil { log.Panicf("Failed create: %s", err) } _, err = db.Exec("INSERT INTO daty (col) VALUES (?)", time.Time{}) if err != nil { log.Panicf("Failed insert: %s", err) } } ``` Replacing `time.Time{}` with `time.Now()` will cause the code not to fail. ### Configuration *Driver version (or git SHA): 9181e3a86a19bacd63e68d43ae8b7b36320d8092 (master) *Go version: go version go1.9 linux/amd64 *Server version: mysql 8.0.3, 5.7.20 *Server OS: fedora 26