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File Date Author Commit
 appServer 2010-04-01 Michael P Michael P [5d75e4] Modified DBT-1 as a benchmark test for Postgres...
 cache 2010-04-01 Michael P Michael P [5d75e4] Modified DBT-1 as a benchmark test for Postgres...
 common 2010-04-01 Michael P Michael P [5d75e4] Modified DBT-1 as a benchmark test for Postgres...
 datagen 2010-05-17 Michael P Michael P [e8423a] DBT-1 update due to the coming release of Postg...
 dbdriver 2010-04-01 Michael P Michael P [5d75e4] Modified DBT-1 as a benchmark test for Postgres...
 doc 2010-04-01 Michael P Michael P [5d75e4] Modified DBT-1 as a benchmark test for Postgres...
 include 2010-04-01 Michael P Michael P [5d75e4] Modified DBT-1 as a benchmark test for Postgres...
 interfaces 2010-04-01 Michael P Michael P [5d75e4] Modified DBT-1 as a benchmark test for Postgres...
 scripts 2010-05-17 Michael P Michael P [5343ab] Creation of a new SQL file to upload data direc...
 tools 2010-04-01 Michael P Michael P [5d75e4] Modified DBT-1 as a benchmark test for Postgres...
 wgen 2010-04-01 Michael P Michael P [5d75e4] Modified DBT-1 as a benchmark test for Postgres...
 wrapper 2010-04-01 Michael P Michael P [5d75e4] Modified DBT-1 as a benchmark test for Postgres...
 ChangeLog 2010-04-01 Michael P Michael P [5d75e4] Modified DBT-1 as a benchmark test for Postgres...
 LICENSE 2010-04-01 Michael P Michael P [5d75e4] Modified DBT-1 as a benchmark test for Postgres...
 Makefile.in 2010-04-01 Michael P Michael P [5d75e4] Modified DBT-1 as a benchmark test for Postgres...
 README 2010-04-01 Michael P Michael P [47cc46] Addition of a README file for user reference
 RELEASE_NOTES 2010-04-01 Michael P Michael P [5d75e4] Modified DBT-1 as a benchmark test for Postgres...
 TODO 2010-04-01 Michael P Michael P [5d75e4] Modified DBT-1 as a benchmark test for Postgres...
 appServerList.data.sample 2010-04-01 Michael P Michael P [5d75e4] Modified DBT-1 as a benchmark test for Postgres...
 configure.in 2010-04-01 Michael P Michael P [5d75e4] Modified DBT-1 as a benchmark test for Postgres...
 init.sh 2010-04-01 Michael P Michael P [5d75e4] Modified DBT-1 as a benchmark test for Postgres...
 make.common.in 2010-04-01 Michael P Michael P [5d75e4] Modified DBT-1 as a benchmark test for Postgres...
 pgxc_stats_param.data.sample 2010-04-01 Michael P Michael P [5d75e4] Modified DBT-1 as a benchmark test for Postgres...
 pgxc_test_launcher.sh.in 2010-04-01 Michael P Michael P [5d75e4] Modified DBT-1 as a benchmark test for Postgres...
 reinstall_pgxc.sh 2010-04-01 Michael P Michael P [5d75e4] Modified DBT-1 as a benchmark test for Postgres...

Read Me

Modified DBT-1 for Postgres-XC test and evaluation

This folder contains DBT-1 material to test and evaluate Postgres-XC.

The following modifications were made.

1. PostgreSQL interface was changed from ODBC to libpq.   It allows 
   much more workload to apply.

2. Added housekeeping feature of ORDER table.   Original DBT-1 did not 
   maintain old ORDER table.   So performance drop was observed when 
   the benchmark is done for a long period (days to weeks).   The main 
   reason is infinite growth of ORDER table.

3. Table design change.  Table design was changed to utilize Postgres-XC's 
   parallel execution feature and to avoid cross-node operations.   
   For details of the change, please refer to Postgres-XC's architecture 
   document.

The original DBT-1 repository will be found at 

git://osdldbt.git.sourceforge.net/gitroot/osdldbt/osdldbt

And the summary will be at

http://osdldbt.git.sourceforge.net/git/gitweb.cgi?p=osdldbt/dbt1;a=summary

Postgres-XC development team appreciates Mr.Mark Wong who kindly approved 
to add this material to Postgres-XC releases.   We also appreciate if 
anybody take a look at these modifications and include some of them into 
the original DBT-1 repository.

Postgres-XC development team

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