cleanup and error printing

sql/util.go

@@ -0,0 +1,13 @@
+package sql
+
+import (
+	"fmt"
+	"strings"
+)
+
+
+func arrayToString(a []Token, delim string) string {
+    return strings.Trim(strings.Replace(fmt.Sprint(a), " ", delim, -1), "[]")
+    //return strings.Trim(strings.Join(strings.Split(fmt.Sprint(a), " "), delim), "[]")
+    //return strings.Trim(strings.Join(strings.Fields(fmt.Sprint(a)), delim), "[]")
+}