Introduce threadskv4b.c with duplicate key management.

diff --git a/README.md b/README.md
index 4a81c1ae04abdd60f2e2ed94bb8957196335be74..b865bda93b6defc800758145a14342d65e89f5e9 100644 (file)
--- a/README.md
+++ b/README.md
@@ -25,6 +25,8 @@ threadskv2.c  Multi-Threaded/Multi-Process based on threadskv1 that replaces the
 
 threadskv3.c   Multi-Threaded/Multi-Process based on threadskv1 that introduces librarian filler slots in the linear key array to minimize data movement when a new key is inserted into the middle of the array.
 
+threadskv4b.c  Multi-Threaded/Multi-Process based on threadskv3 that manages duplicate keys added to the btree.
+
 Compilation is achieved on linux or Windows by:
 
 gcc -D STANDALONE threads2h.c -lpthread