Build tested:

mscadmin> getsoft
getsoftwareinfo Thu Jun 9 16:20:37 2016

Name : mariadb-columnstore-platform Relocations: (not relocatable)
Version : 1.0 Vendor: MariaDB Corporation Ab
Release : 0 Build Date: Wed 08 Jun 2016 09:45:36 AM CDT
Install Date: Thu 09 Jun 2016 08:12:14 AM CDT Build Host: srvbuilder
Group : Applications Source RPM: mariadb-columnstore-1.0-0.src.rpm

[root@columnStore columnstore]# /usr/local/mariadb/columnstore/bin/viewtablelock
There is 1 table lock

Table LockID Process PID Session Txn CreationTime State DBRoots
testdb.update1brows 8 DMLProc 9038 4 3336 Thu Jun 9 16:19:31 2016 LOADING 1

The lock state above always shows LOADING, although the query command is UPDATE.