Method tryParseJoinConstraints

parser/parser_query.go:141–169

(pos Pos)

}

func (p *Parser) tryParseJoinConstraints(pos Pos) (Expr, error) {
	switch {
	case p.tryConsumeKeywords(KeywordOn):
		columnExprList, err := p.parseColumnExprList(p.Pos())
		if err != nil {
			return nil, err
		}
		return &OnClause{
			OnPos: pos,
			On:    columnExprList,
		}, nil
	case p.tryConsumeKeywords(KeywordUsing):
		hasParen := p.tryConsumeTokenKind(TokenKindLParen) != nil
		columnExprList, err := p.parseColumnExprListWithLParen(p.Pos())
		if err != nil {
			return nil, err
		}
		if hasParen {
			if err := p.expectTokenKind(TokenKindRParen); err != nil {
				return nil, err
			}
		}
		return &UsingClause{
			UsingPos: pos,
			Using:    columnExprList,
		}, nil
	}
	return nil, nil
}

func (p *Parser) parseJoinOp(_ Pos) []string {
	var modifiers []string