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Who is How Columnar? Exadata, Teradata, and HANA – Part 1: Column Compression

There are three forms of columnar-orientation currently deployed by database systems today. Each builds upon the next. The simplest form uses column-orientation to provide better data compression. The...

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Who is How Columnar? Exadata, Teradata, and HANA – Part 2: Column Processing

In my last post here I suggested that there were three levels of maturity around column orientation and described the first level, PAX, which provides columnar compression. This apparently is the level...

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Who Out-performs Who: A Story…

In this blog I have stated explicitly and implied now and again that the big architectural features are what count… despite the fact that little features are often what are marketed. Here is a true...

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Oracle 12c IMDB Announcement at OOW13

I changed the picture to show you the billboard SAP bought on US101N right across from the O HQ… - Rob Larry Ellison announced a new in-memory capability for Oracle 12c last night. There is little...

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CPUs and HW for HANA, BLU, Hekaton, and Oracle 12c

This short post is intended to provide a quick warning regarding in-memory columnar and cpu requirements… with a longer post to follow. When a row is inserted or bulk-loaded into a DBMS, if there are...

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HANA, BLU, Hekaton, and Oracle 12c vs. Teradata and Greenplum – November 2013

I would like to point out a very important section in the paper on Hekaton on the Microsoft Research site here. I will quote the section in total: 2. DESIGN CONSIDERATIONS  An analysis done early on in...

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Dynamic Late Binding Schemas on Need

I very much like Curt Monash’s posts on dynamic schemas and schema-on-need… here and here are two examples. They make me think… But I am missing something… I mean that sincerely not just as a setup for...

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Some Database Performance Concepts

I’m working on a new idea… it may or may not pan out… but here are some concepts for your consideration… with some thoughts on their performance implications. First a reminder… a reality check. In my...

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How DBMS Vendors Admit to an Architectural Limitation: Part 2 – Teradata...

This is the second post (see Part 1 here) on how vendors adjust their architecture without admitting that the previous architecture was flawed. This time we’ll consider Teradata and in-memory…. When...

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More Database Supercomputing Technology

Last year two associates from Greenplum suggested that I read a very smart academic paper titled “Efficiently Compiling Efficient Query Plans for Modern Hardware” by Thomas Neumann. Having reiterated...

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