Method parseFunctionParams

parser/parser_column.go:666–695

(pos Pos)

}

func (p *Parser) parseFunctionParams(pos Pos) (*ParamExprList, error) {
	if err := p.expectTokenKind(TokenKindLParen); err != nil {
		return nil, err
	}
	params, err := p.parseColumnExprListWithLParen(p.Pos())
	if err != nil {
		return nil, err
	}
	rightParenPos := p.Pos()
	if err := p.expectTokenKind(TokenKindRParen); err != nil {
		return nil, err
	}
	paramExprList := &ParamExprList{
		LeftParenPos:  pos,
		RightParenPos: rightParenPos,
		Items:         params,
	}

	// For some aggregate functions might support parametric arguments:
	// e.g. QUANTILE(0.5)(x) or QUANTILE(0.5, 0.9)(x).
	// So we need to have a check if there is another argument list with detecting the left bracket.
	if p.matchTokenKind(TokenKindLParen) {
		columnArgList, err := p.parseColumnArgList(p.Pos())
		if err != nil {
			return nil, err
		}
		paramExprList.ColumnArgList = columnArgList
	}
	return paramExprList, nil
}

func (p *Parser) parseMapLiteral(pos Pos) (*MapLiteral, error) {
	if err := p.expectTokenKind(TokenKindLBrace); err != nil {