Query Optimizer

General Description of goals & responsibilities

Meeting Summaries

before 4/5/95

Originally, we had the entire old minibase code (a version of it exists in ~cs764-1/public/minibase/minibase; I recommend not looking at it if you don't have to.) and tried to get that to work. It was a lost cause, and not worth the effort I had already put into it.

Fortunately, we went back to the previous version of the optimizer which wasn't as tied into the minibase code. It is currently at ~michaell/minibase.opt/. If you want to run it, it is compiled on the suns and you can start it up as either minibase for a text-only interface, or minibase.tcl to get a GUI one.

to do list 4/5/95

This file will try to stay fairly up to date with my current to do list, including tasks completed.

04/07 meeting points

Links to other groups that are relevant to our work

• System Architecture
• Query Plan Interpreter

External Interfaces

• All of the header files for the optimizer are in ~michaell/minibase.opt/hdr
• ii_systemcatalogs.h is the interface to the catalog. I've done some analysis on where they are used in the optimizer.
• planner.h contains the query execution plan.