Comments on: The Netezza and IBM DB2 approaches to compression

By: Compression in Sybase ASE 15.7 | DBMS 2 : DataBase Management System Services

Fri, 14 Oct 2011 04:29:22 +0000

[...] the first release of Sybase ASE with data compression. Sybase fondly believes that it is matching DB2 and leapfrogging Oracle in compression rate with a single compression scheme, namely page-level [...]

By: More on temp space, compression, and “random” I/O | DBMS 2 : DataBase Management System Services

Sun, 10 Apr 2011 07:18:21 +0000

[...] the plus side, I was reminded of something I should have noted when I wrote about DB2 compression [...]

By: Curt Monash

Curt Monash — Thu, 25 Nov 2010 04:31:31 +0000

Vertica is probably the most aggressive at operating on compressed data, but a number of others do it partially.

One catch is that for some compression types (e.g. dictionary/token) it is straightforward to operate on compressed data, whereas for others (e.g. anything block-level) it is well-nigh impossible. Generally, “columnar” types of compression allow the possibility of operating on compressed data, while others don’t. Dictionary/token is the easiest case of all; it would be hard to understand why somebody would NOT operate on compressed data if it was compressed only that way.

By: Martin Rusoff

Martin Rusoff — Wed, 24 Nov 2010 19:24:30 +0000

One of the interesting and fundamental differences beginning to show up in databases is whetehr they actually work with compressed data or simply store it compressed. Some of the research on column-stores (Vertica, MonetDB etc.) xseems to indicate that significant performance gains can be found by performing some operations on compressed data… It would be interesting to know which vendors have that in the works.

By: Notes on data warehouse appliance prices | DBMS 2 : DataBase Management System Services

Sat, 23 Oct 2010 09:58:26 +0000

[...] was based on 2.25X compression. Since then, Netezza has upgraded its compression. Netezza now quotes 4X compression. Accordingly, Netezza’s list price is now around [...]

By: Some thoughts on the announcement that IBM is buying Netezza | DBMS 2 : DataBase Management System Services

Mon, 20 Sep 2010 20:40:03 +0000

[...] been getting some DB2 briefings, which is why I’ve blogged about some specialized technical points from same. But I can’t yet say why the theoretically great-sounding data [...]

By: M-A-O-L » Netezza Updates

M-A-O-L » Netezza Updates — Fri, 16 Jul 2010 07:14:52 +0000

[...] The Netezza and IBM DB2 approaches to compression [...]

By: EMC Buys Greenplum – Big Data Realignment Continues

EMC Buys Greenplum – Big Data Realignment Continues — Wed, 07 Jul 2010 14:10:46 +0000

[...] has had it for a while too, and IBM has been pushing its database compression as well. See this useful post by Curt Monash on the topic for [...]

By: EMC Buys Greenplum – Big Data Realignment Continues « Merv's Market Strategies for IT Suppliers

Wed, 07 Jul 2010 02:46:22 +0000

[...] has had it for a while too, and IBM has been pushing its database compression as well. See this useful post by Curt Monash on the topic for [...]

By: Notes on a spate of Netezza-related blog posts | DBMS2 -- DataBase Management System Services

Mon, 28 Jun 2010 19:02:44 +0000

[...] A discussion of Netezza’s and IBM’s compression strategies [...]