bptree does not work well for auto-increasing keys

weed/util/bptree/bptree_store_test.go

@@ -0,0 +1,34 @@
+package bptree
+
+import (
+	"fmt"
+	"testing"
+)
+
+func TestAddRemove(t *testing.T) {
+	tree := NewBpTree(32)
+	PersistFn = func(node *BpNode) error {
+		println("saving", node.protoNodeId)
+		return nil
+	}
+	DestroyFn = func(node *BpNode) error {
+		println("delete", node.protoNodeId)
+		return nil
+	}
+	for i:=0;i<1024;i++{
+		println("++++++++++", i)
+		tree.Add(String(fmt.Sprintf("%02d", i)), String(fmt.Sprintf("%02d", i)))
+		printTree(tree.root, "")
+	}
+}
+
+func printTree(node *BpNode, prefix string) {
+	fmt.Printf("%sNode %d\n", prefix, node.protoNodeId)
+	prefix += "  "
+	for i:=0;i<len(node.keys);i++{
+		fmt.Printf("%skey %s\n", prefix, node.keys[i])
+		if i < len(node.pointers) && node.pointers[i] != nil {
+			printTree(node.pointers[i], prefix+"  ")
+		}
+	}
+}