This is pure golang btree library. it's copy on write btree.

go get github.com/datastream/btree

create a record

create a btree

LEAFSIZE = 1 << 5
NODESIZE = 1 << 6

create new btree with custom leafsize/nodesize

Insert a record, if insert success, it return true.

Update a record, if update success, it return true

Delete a record, if delete success, it return true

Search a key, if find success, it return value

Write btree data into disk.

# tree.Version = 100
tree.Dump("treedump")
# filename should be "treedump_100"

Read btree from disk

1. more test
2. code tunning for performance or mem