Comments on: Hasso Plattner calls for in-memory OLTP column stores http://www.dbms2.com/2009/07/07/hasso-plattner-calls-for-in-memory-oltp-column-stores/ Choices in data management and analysis Mon, 25 Jan 2010 14:39:21 -0500 http://wordpress.org/?v=2.8.4 hourly 1 By: Ray Wang on SAP | DBMS2 -- DataBase Management System Services http://www.dbms2.com/2009/07/07/hasso-plattner-calls-for-in-memory-oltp-column-stores/comment-page-1/#comment-152390 Ray Wang on SAP | DBMS2 -- DataBase Management System Services Fri, 11 Dec 2009 23:17:29 +0000 http://www.dbms2.com/?p=834#comment-152390 [...] and Oracle’s (Fusion) efforts to meld memory-centric analytics with operational apps will be crucial for large enterprises — but perhaps only around the middle of the next [...] [...] and Oracle’s (Fusion) efforts to meld memory-centric analytics with operational apps will be crucial for large enterprises — but perhaps only around the middle of the next [...]

]]> By: joab jackson (joabj) 's status on Saturday, 18-Jul-09 13:36:58 UTC - Identi.ca http://www.dbms2.com/2009/07/07/hasso-plattner-calls-for-in-memory-oltp-column-stores/comment-page-1/#comment-131252 joab jackson (joabj) 's status on Saturday, 18-Jul-09 13:36:58 UTC - Identi.ca Sat, 18 Jul 2009 13:37:00 +0000 http://www.dbms2.com/?p=834#comment-131252 [...] http://www.dbms2.com/2009/07/07/hasso-plattner-calls-for-in-memory-oltp-column-stores/ [...] [...] http://www.dbms2.com/2009/07/07/hasso-plattner-calls-for-in-memory-oltp-column-stores/ [...]

]]> By: Curt Monash http://www.dbms2.com/2009/07/07/hasso-plattner-calls-for-in-memory-oltp-column-stores/comment-page-1/#comment-130285 Curt Monash Sat, 11 Jul 2009 21:18:48 +0000 http://www.dbms2.com/?p=834#comment-130285 Very different cases, Seth. Aggregates are updated every time a FACT changes. Dimension tables are updated every time a dimension changes. Very different cases, Seth. Aggregates are updated every time a FACT changes. Dimension tables are updated every time a dimension changes.

]]> By: Seth Grimes http://www.dbms2.com/2009/07/07/hasso-plattner-calls-for-in-memory-oltp-column-stores/comment-page-1/#comment-130195 Seth Grimes Sat, 11 Jul 2009 11:49:05 +0000 http://www.dbms2.com/?p=834#comment-130195 Regarding the sensible argument: "columnar –> natively fast analytics –> no need to maintain aggregates –> much lower update burden" What about when, instead of aggregates, the columnar system needs to maintain software-managed *replicates* rather than aggregates? That's the Vertica situation. Seth Regarding the sensible argument:

“columnar –> natively fast analytics –> no need to maintain aggregates –> much lower update burden”

What about when, instead of aggregates, the columnar system needs to maintain software-managed *replicates* rather than aggregates? That’s the Vertica situation.

Seth

]]>