Method HandleBadNull

pkg/table/column.go:524–536

HandleBadNull handles the bad null error. When caller is LOAD DATA, `rowCntInLoadData` should be greater than 0 the error is ErrWarnNullToNotnull. Otherwise, the error is ErrColumnCantNull. If BadNullAsWarning is true, it will append the error as a warning, else return the error.

(
	ec errctx.Context,
	d *types.Datum,
	rowCntInLoadData uint64)

// Otherwise, the error is ErrColumnCantNull.
// If BadNullAsWarning is true, it will append the error as a warning, else return the error.
func (c *Column) HandleBadNull(
	ec errctx.Context,
	d *types.Datum,
	rowCntInLoadData uint64) error {
	if err := c.CheckNotNull(d, rowCntInLoadData); err != nil {
		if ec.HandleError(err) == nil {
			*d = GetZeroValue(c.ToInfo())
			return nil
		}
		return err
	}
	return nil
}

// IsPKHandleColumn checks if the column is primary key handle column.
func (c *Column) IsPKHandleColumn(tbInfo *model.TableInfo) bool {