Hello,
   
    Current I am using MonetDB server v5.18.3 , and as i see in Wiki , MonetDB support hash index ,I intended to create a hash index on a table. But how to do it , i have referred to sqlmanual downloaded from monetdb.cwi.nl, but it simply wrote following format:
 
     CREATE [UNIQUE] INDEX <index_name> ON <table_name> ( <column_name>, ...) ;
 
    Is that Btree index or hash index or others? Does MonetDB support multiple column hash index?  I am looking forward to your reply.
 
 
    Thanks a lot.
 
    Andrew. Feng