Method parseIndexColumn

database/postgres/parser.go:896–928

(stmt *pgquery.Node)

}

func (p PostgresParser) parseIndexColumn(stmt *pgquery.Node) (parser.IndexColumn, error) {
	switch node := stmt.Node.(type) {
	case *pgquery.Node_IndexElem:
		if node.IndexElem.Expr != nil {
			expr, err := p.parseExpr(node.IndexElem.Expr)
			if err != nil {
				return parser.IndexColumn{}, err
			}

			return parser.IndexColumn{
				Expression: expr,
			}, nil
		} else {
			var direction string
			switch node.IndexElem.Ordering {
			case pgquery.SortByDir_SORTBY_ASC:
				direction = parser.AscScr
			case pgquery.SortByDir_SORTBY_DESC:
				direction = parser.DescScr
			case pgquery.SortByDir_SORTBY_DEFAULT:
				direction = ""
			default:
				return parser.IndexColumn{}, fmt.Errorf("unexpected direction in parseIndexColumn: %d", node.IndexElem.Ordering)
			}
			return parser.IndexColumn{
				Column:    parser.NewIdent(node.IndexElem.Name, false),
				Direction: direction,
			}, nil
		}
	default:
		return parser.IndexColumn{}, fmt.Errorf("unexpected node type in parseIndexColumn: %#v", stmt)
	}
}

func (p PostgresParser) parseArrayElement(node parser.Expr) (parser.Expr, error) {
	switch node := node.(type) {