[skip e2e] Add comment for base table (#14723)

Signed-off-by: Nshaoyue.chen <shaoyue.chen@zilliz.com>

internal/util/paramtable/base_table.go

@@ -425,6 +425,7 @@ func ConvertRangeToIntRange(rangeStr, sep string) []int {
 	return []int{start, end}
 }
 
+// ConvertRangeToIntSlice convert given @rangeStr & @sep to a slice of ints.
 func ConvertRangeToIntSlice(rangeStr, sep string) []int {
 	rangeSlice := ConvertRangeToIntRange(rangeStr, sep)
 	start, end := rangeSlice[0], rangeSlice[1]
@@ -435,6 +436,7 @@ func ConvertRangeToIntSlice(rangeStr, sep string) []int {
 	return ret
 }
 
+// InitLogCfg init log of the base table
 func (gp *BaseTable) InitLogCfg() {
 	gp.Log = log.Config{}
 	format, err := gp.Load("log.format")
@@ -452,6 +454,7 @@ func (gp *BaseTable) InitLogCfg() {
 	gp.Log.File.MaxDays = gp.ParseInt("log.file.maxAge")
 }
 
+// SetLogConfig set log config of the base table
 func (gp *BaseTable) SetLogConfig() {
 	gp.LogCfgFunc = func(cfg log.Config) {
 		log.Info("Set log file to ", zap.String("path", cfg.File.Filename))
@@ -460,6 +463,7 @@ func (gp *BaseTable) SetLogConfig() {
 	}
 }
 
+// SetLogger sets the logger file by given id
 func (gp *BaseTable) SetLogger(id UniqueID) {
 	rootPath, err := gp.Load("log.file.rootPath")
 	if err != nil {