Re: pgbench hard coded constants - Mailing list pgsql-hackers

From Tatsuo Ishii
Subject Re: pgbench hard coded constants
Date
Msg-id 20090909.124434.112620462.t-ishii@sraoss.co.jp
Whole thread Raw
In response to pgbench hard coded constants  (Jeff Janes <jeff.janes@gmail.com>)
Responses Re: pgbench hard coded constants
List pgsql-hackers
> pgbench has #defines for number of branches, tellers, and accounts.  There
> are used to populate the tables with -i, but when running actual benchmark
> it has values separately hard-coded in the query metacommands.  This patch
> makes the metacommands obtain their values from the relevant #defines.

Good catch! Long standing bug...

> It has been tested to the extent that after changing the #define naccounts
> downward, without the patch, after running both -i once and the benchmark
> itself once leads to inconsistent results (select sum(abalance) from
> pgbench_accounts  does not equal sum(delta) from pgbench_history), while
> with the patch they are equal.

Looks good. If there's no objection, I will commit into CVS HEAD.
--
Tatsuo Ishii
SRA OSS, Inc. Japan


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