You can retrieve the Global Configuration Record to see the current setting for the merge policy.
To retrieve the Global Configuration Record:
<config-service:results
xmlns:config-service="http://www.endeca.com/MDEX/config/services/types/2/0">
<mdex:globalConfigRecord xmlns:mdex="http://www.endeca.com/MDEX/config/XQuery/2009/09">
<mdex:record xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
...
<mdex-config_Key type="mdex:string">global</mdex-config_Key>
<mdex-config_MergePolicy type="mdex:string">balanced</mdex-config_MergePolicy>
...
</mdex:record>
</mdex:globalConfigRecord>
</config-service:results>
In this example, the merge policy is set to balanced for the Dgraph process of the Endeca data domain.