Thanks a lot. The MAL I have still doesn't make sense, but I will work on it. ________________________________ From: Ying Zhang To: Communication channel for developers of the MonetDB suite. 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-list@monetdb.org http://mail.monetdb.org/mailman/listinfo/developers-list

_______________________________________________ developers-list mailing list developers-list@monetdb.org http://mail.monetdb.org/mailman/listinfo/developers-list _______________________________________________ developers-list mailing list developers-list@monetdb.org http://mail.monetdb.org/mailman/listinfo/developers-list