[golang] query가 무진장 길때 string 활용

	var rett db.LogDBRow
	sql_statement := `
		SELECT
			MY QUERY STRING~~~
		FROM (	
			Select
				MY QUERY STRING~~~,
				count(*) cnt
			from (
				SELECT MY QUERY STRING~~~
				where time >= %s::TIMESTAMP WITH TIME ZONE  AND time <= %s::TIMESTAMP WITH TIME ZONE`

	if len(args) > 0 {
		sql_statement += ` AND tags = %s`
	}

	sql_statement += `
			) m1
			group by
				MY QUERY STRING~~~
		) m2
		ORDER BY m2.aaa, m2.bbb
		`
   
   fmt.Sprintf(sql_statement, fromdate, todate, tags)