Hi:
Firstly , I am very sorry to send the same message from different Email address before.
Probably something wrong in my Outlook Express, it's my fault .
Now I am working on experiment of storing the RDF data in MonetDB ( many researches such as
vertically partition , RDF3x, RDFJoin use the MonetDB as database ),
and the first step is creating the URI conversion table .( convert the URI into integer serial number ) .
sql> create table soidtable ( url varchar(3000) not null, id int primary key);
and next step is createing POT , PST , SOT table
sql> create table sot ( propertyid1 int ,propertyid2 int, bitvector Blob);
My problem is that I want to create a hash index on URI and later on multiple columns ,
how can i do it ? this problem has frustrated me for some days. and I have seen that
someone asked similar question before in mailing list archives . and someone propose that
"do some compilation on your own " [1] . I can't understand what it means.
Any sugguestions and helps will be much appreciated .
Thanks
Andrew Feng
[1] http://sourceforge.net/mailarchive/message.php?msg_id=7cc6b5600910052359ta95...
----- Original Message -----
From: "Isidor Zeuner"
Hello Andrew,
no offense, but could you try to check the mailing list archives before posting questions? The very same question was posted and answered just a few days ago: [1]. And it is rather usual when having a question, that someone else already asked it before
Best regards,
Isidor
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