}
	} else {
		builder.WriteByte('*')
	}
}

func (s Select) MergeClause(clause *Clause) {
	if s.Expression != nil {
		if s.Distinct {
			if expr, ok := s.Expression.(Expr); ok {
				expr.SQL = "DISTINCT " + expr.SQL
				clause.Expression = expr
				return
			}
		}

		clause.Expression = s.Expression
	} else {
		clause.Expression = s
	}
}

	NegationBuild(builder Builder)
}

// Expr raw expression
type Expr struct {
	SQL                string
	Vars               []interface{}
	WithoutParentheses bool
}

// Build build raw expression
func (expr Expr) Build(builder Builder) {
	var (
		afterParenthesis bool
		idx              int
	)

	for _, v := range []byte(expr.SQL) {
		if v == '?' && len(expr.Vars) > idx {

      "targets": [
        {
          "datasource": {
            "type": "prometheus",
            "uid": "${DS_PROMETHEUS}"
          },
          "exemplar": true,
          "expr": "sum by (server) (minio_node_replication_average_active_workers{job=\"$scrape_jobs\"})",
          "interval": "1m",
          "intervalFactor": 2,
          "legendFormat": "{{server}}",
          "refId": "A"

	wrapInParentheses := false

	for idx, expr := range exprs {
		if idx > 0 {
			if v, ok := expr.(OrConditions); ok && len(v.Exprs) == 1 {
				builder.WriteString(OrWithSpace)
			} else {
				builder.WriteString(joinCond)
			}
		}

		if len(exprs) > 1 {
			switch v := expr.(type) {
			case OrConditions:
				if len(v.Exprs) == 1 {
					if e, ok := v.Exprs[0].(Expr); ok {
						sql := strings.ToUpper(e.SQL)

      "targets": [
        {
          "datasource": {
            "type": "prometheus",
            "uid": "${DS_PROMETHEUS}"
          },
          "exemplar": true,
          "expr": "sum by (server) (minio_cluster_replication_received_bytes{job=\"$scrape_jobs\"})",
          "interval": "1m",
          "intervalFactor": 2,
          "legendFormat": "{{server}}",
          "refId": "A"
        }

                && value.getClass().getName().startsWith("java.lang."));
    }

    private String stripTokens(String expr) {
        if (expr.startsWith("${") && (expr.indexOf('}') == expr.length() - 1)) {
            expr = expr.substring(2, expr.length() - 1);
        }
        return expr;
    }

    @Override
    public File alignToBaseDirectory(File file) {

      "targets": [
        {
          "datasource": {
            "type": "prometheus",
            "uid": "${DS_PROMETHEUS}"
          },
          "exemplar": true,
          "expr": "time() - max(minio_node_process_starttime_seconds{job=~\"$scrape_jobs\"})",
          "format": "time_series",
          "instant": true,
          "interval": "",
          "intervalFactor": 1,

                && value.getClass().getName().startsWith("java.lang."));
    }

    private String stripTokens(String expr) {
        if (expr.startsWith("${") && (expr.indexOf('}') == expr.length() - 1)) {
            expr = expr.substring(2, expr.length() - 1);
        }
        return expr;
    }

    @Override
    public File alignToBaseDirectory(File file) {

      "targets": [
        {
          "datasource": {
            "type": "prometheus",
            "uid": "${DS_PROMETHEUS}"
          },
          "exemplar": true,
          "expr": "max(minio_node_drive_total{job=~\"$scrape_jobs\",server=\"$server\"})",
          "format": "table",
          "hide": false,
          "instant": true,
          "interval": "",
          "intervalFactor": 1,

		return input.Clone(output), nil
	}

	for i, expr := range e.selectAST.Expression.Expressions {
		v, err := expr.evalNode(input, e.tableAlias)
		if err != nil {
			return nil, err
		}

		// Pick output column names
		if expr.As != "" {
			output, err = output.Set(expr.As, v)
		} else if comp, ok := getLastKeypathComponent(expr.Expression); ok {
			output, err = output.Set(comp, v)
		} else {