[prev in list] [next in list] [prev in thread] [next in thread] 

List:       monetdb-developers
Subject:    [Monetdb-developers] About MonetDB query optimize
From:       "=?gbk?B?eGl4aQ==?=" <370841374 () qq ! com>
Date:       2010-09-17 5:42:33
Message-ID: tencent_3A0CD4C03EB98D4301C33F44 () qq ! com
[Download RAW message or body]

[Attachment #2 (multipart/alternative)]

[Attachment #4 (text/plain)]

Dear all,
   Hello,Recently I am intersting in query optimize, and have know that most \
database's query optimizing methods contain two £º1. Rule Base Optimizer;  2.Cost \
Base Optimizer. I also know that MonetDB has two-level optimizing ,one is relation \
algebra optimize and the other is MAL optimize when interprets a sql.  I understand \
relation algebra optimize is no relationship with the column-oriented special query \
optimize.MAL optimizer may be some relationship with the column-oriented special \
query optimize. So I want to ask :MAL optimize is also contain Rule Base Optimizer \
and Cost Base Optimizer? which optimizers is the special query optimizer for the \
column-oriented and not for tuple-oriented database?  Best regards!


[Attachment #5 (text/html)]

<DIV>Dear all,</DIV>
<DIV>&nbsp; Hello,Recently I am intersting in query optimize, and have know that most \
database's query optimizing methods contain two £º1. Rule Base Optimizer; \
&nbsp;2.Cost Base Optimizer. I also know that MonetDB has two-level optimizing ,one \
is relation algebra optimize and the other is MAL optimize when interprets a \
sql.</DIV> <DIV>I understand relation algebra optimize is no relationship with the \
column-oriented special query optimize.MAL optimizer may be some relationship with \
the column-oriented special query optimize. So I want to ask :MAL optimize is also \
contain Rule Base Optimizer and Cost Base Optimizer? which optimizers is the special \
query optimizer for the column-oriented and not for tuple-oriented database?</DIV> \
<DIV>Best regards!</DIV>



------------------------------------------------------------------------------
Start uncovering the many advantages of virtual appliances
and start using them to simplify application deployment and
accelerate your shift to cloud computing.
http://p.sf.net/sfu/novell-sfdev2dev

_______________________________________________
Monetdb-developers mailing list
Monetdb-developers@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/monetdb-developers


[prev in list] [next in list] [prev in thread] [next in thread]