Method parseDropStmt

parser/parser_drop.go:37–82

(pos Pos)

}

func (p *Parser) parseDropStmt(pos Pos) (*DropStmt, error) {
	var isTemporary bool
	dropTarget := KeywordTable
	switch {
	case p.tryConsumeKeywords(KeywordDictionary):
		dropTarget = KeywordDictionary
	case p.tryConsumeKeywords(KeywordView):
		dropTarget = KeywordView
	default:
		isTemporary = p.tryConsumeKeywords(KeywordTemporary)
		if err := p.expectKeyword(KeywordTable); err != nil {
			return nil, err
		}
	}

	isExists, err := p.tryParseIfExists()
	if err != nil {
		return nil, err
	}

	name, err := p.parseTableIdentifier(p.Pos())
	if err != nil {
		return nil, err
	}

	onCluster, err := p.tryParseClusterClause(p.Pos())
	if err != nil {
		return nil, err
	}

	modifier, err := p.tryParseModifier()
	if err != nil {
		return nil, err
	}

	return &DropStmt{
		DropPos:      pos,
		DropTarget:   dropTarget,
		Name:         name,
		IfExists:     isExists,
		OnCluster:    onCluster,
		IsTemporary:  isTemporary,
		Modifier:     modifier,
		StatementEnd: p.Pos(),
	}, nil
}

func (p *Parser) tryParseModifier() (string, error) {
	switch {