diff --git a/dbpool.go b/dbpool.go
index fcdfd3f..66c7e78 100644
--- a/dbpool.go
+++ b/dbpool.go
@@ -240,12 +240,14 @@ func (this *dbPool) IncrementLoad(
 	dataSource string,
 	name string,
 	tblName string,
+	initIdx int64,
 	sqlCb func(int64, int64) (string, []string),
+	lastIdxChgCb func(int64),
 	doCb func(*DataSet) bool) {
 	if this.style != GO_STYLE_DB {
 		panic("dbpool.IncrementLoad is not gostyle")
 	}
-	var lastIdx int64
+	lastIdx := initIdx
 	var maxIdx int64
 	var newMaxIdx int64
 	cond := sync.NewCond(new(sync.Mutex))
@@ -256,7 +258,7 @@ func (this *dbPool) IncrementLoad(
 				select {
 				case idx := <-*chNewMaxIdx:
 					{
-						q5.AtomicStoreInt64WhenGreater(&newMaxIdx, &idx)
+						q5.AtomicStoreInt64WhenGreater(&idx, &newMaxIdx)
 						cond.Broadcast()
 					}
 				}
@@ -265,6 +267,7 @@ func (this *dbPool) IncrementLoad(
 	}
 	for {
 		if lastIdx < maxIdx {
+			oldLastIdx := lastIdx
 			sql, params := sqlCb(lastIdx, maxIdx)
 			this.syncInternalQuery(
 				dataSource,
@@ -277,7 +280,6 @@ func (this *dbPool) IncrementLoad(
 					}
 					for ds.Next() {
 						idx := q5.ToInt64(ds.GetByName("idx"))
-						fmt.Println("IncrementLoad idx:%d lastIdx:%d", idx, lastIdx)
 						if !doCb(ds) {
 							return
 						}
@@ -291,6 +293,9 @@ func (this *dbPool) IncrementLoad(
 						lastIdx = maxIdx
 					}
 				})
+			if lastIdx > oldLastIdx {
+				lastIdxChgCb(lastIdx)
+			}
 		}
 		q5.AtomicStoreInt64WhenGreater(&newMaxIdx, &maxIdx)
 		if lastIdx >= maxIdx {