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Today's Topics:
1. Re: MonetDB: Feb2013 - Introduce a sink point for parallel
processing (Fabian Groffen)
2. Re: bat bind Access kind (Ying Zhang)
3. Re: bat bind Access kind (Tapomay Dey)
----------------------------------------------------------------------
Message: 1
Date: Mon, 10 Dec 2012 12:10:32 +0100
From: Fabian Groffen <fab...@monetdb.org>
To: developers-l...@monetdb.org
Subject: Re: MonetDB: Feb2013 - Introduce a sink point for parallel
processing
Message-ID: <20121210111032.gw8...@cwi.nl>
Content-Type: text/plain; charset="utf-8"
On 10-12-2012 11:49:29 +0100, Martin Kersten wrote:
> Changeset: d944146a71ef for MonetDB
> URL: http://dev.monetdb.org/hg/MonetDB?cmd=changeset;node=d944146a71ef
> Modified Files:
> monetdb5/modules/mal/language.c
> monetdb5/modules/mal/language.h
> monetdb5/modules/mal/language.mal
> Branch: Feb2013
> Log Message:
>
> Introduce a sink point for parallel processing
sink
noun
1 a fixed basin with a water supply and a drain.
2 a pool or marsh in which a river's water disappears by evaporation or
percolation.
? technical a body or process that acts to absorb or remove energy or a
particular component from a system: a heat sink | the oceans can act as
a sink for CO 2. The opposite of source.
3 short for sinkhole.
4 a place of vice or corruption: moralizers complain that the Net is
simply a festering sink of iniquity.
sync |siNGk|(also synch ) informal
noun
synchronization: images flash onto your screen in sync with the music.
--
Fabian Groffen fab...@monetdb.org
column-store pioneer http://www.monetdb.org/Home
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Message: 2
Date: Mon, 10 Dec 2012 12:27:00 +0100
From: Ying Zhang <y.zh...@cwi.nl>
To: "Communication channel for developers of the MonetDB suite."
<developers-l...@monetdb.org>
Subject: Re: bat bind Access kind
Message-ID: <2abb4af3-bed3-4ba2-a963-28c82d064...@cwi.nl>
Content-Type: text/plain; charset=us-ascii
On Dec 10, 2012, at 11:55, Tapomay Dey wrote:
> pattern bind(mvc:int, schema:str, table:str, column:str, access:int
> ):bat[:oid,:any_1]
> address mvc_bind_wrap
> comment "Bind the 'schema.table.column' BAT with access kind:
> 0 - base table
> 1 - inserts
>
>
> 2 - updates";
>
> What do you mean by access kind here.
Data of each column are stored in three BATs. You can only bind to one BAT at
a time.
The value of 'access' determines to which BAT you want to bind. RDONLY (==0):
the already persistently stored column data; RD_INS (==1): all data that have
been inserted, but not yet committed; RD_UPDATE (==2): I think this one should
contain all data that have been delete, but not yet committed. But I'm not
completely sure, since there is also something called delta-BAT (dbat), which
has something to do with updates...
Regards,
Jennie
> Appreciate any help.
>
> Regards,
> Tapomay.
> _______________________________________________
> developers-list mailing list
> developers-l...@monetdb.org
> http://mail.monetdb.org/mailman/listinfo/developers-list
------------------------------
Message: 3
Date: Mon, 10 Dec 2012 06:01:15 -0800 (PST)
From: Tapomay Dey <tapo...@yahoo.com>
To: "Communication channel for developers of the MonetDB suite."
<developers-l...@monetdb.org>
Subject: Re: bat bind Access kind
Message-ID:
<1355148075.53171.yahoomail...@web114119.mail.gq1.yahoo.com>
Content-Type: text/plain; charset="iso-8859-1"
Thanks a lot. The MAL I have still doesn't make sense, but I will work on it.
________________________________
From: Ying Zhang <y.zh...@cwi.nl>
To: Communication channel for developers of the MonetDB suite.
<developers-l...@monetdb.org>
Sent: Monday, December 10, 2012 4:57 PM
Subject: Re: bat bind Access kind
On Dec 10, 2012, at 11:55, Tapomay Dey wrote:
> pattern bind(mvc:int, schema:str, table:str, column:str, access:int
> ):bat[:oid,:any_1]
> address mvc_bind_wrap
> comment "Bind the 'schema.table.column' BAT with access kind:
> ??? 0 - base table
> ??? 1 - inserts
>
> ???
> 2 - updates";
>
> What do you mean by access kind here.
Data of each column are stored in three BATs.? You can only bind to one BAT at
a time.
The value of 'access' determines to which BAT you want to bind. RDONLY (==0):
the already persistently stored column data; RD_INS (==1): all data that have
been inserted, but not yet committed; RD_UPDATE (==2): I think this one should
contain all data that have been delete, but not yet committed. But I'm not
completely sure, since there is also something called delta-BAT (dbat), which
has something to do with updates...
Regards,
Jennie
> Appreciate any help.
>
> Regards,
> Tapomay.
> _______________________________________________
> developers-list mailing list
> developers-l...@monetdb.org
> http://mail.monetdb.org/mailman/listinfo/developers-list
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