Function NewResultColumn

rel/sql.go:324–330

(as string, ordinal int, col *Column, valtype value.ValueType)

	return &Projection{Columns: make(ResultColumns, 0), colNames: make(map[string]struct{})}
}
func NewResultColumn(as string, ordinal int, col *Column, valtype value.ValueType) *ResultColumn {
	rc := ResultColumn{Name: as, As: as, ColPos: ordinal, Col: col, Type: valtype}
	if col != nil {
		rc.Name = col.SourceField
	}
	return &rc
}
func NewSqlSelect() *SqlSelect {
	req := &SqlSelect{}
	req.Columns = make(Columns, 0)