Order of pg_stat_activity timestamp columns

Has anyone ever noticed that the order of pg_stat_activity timestamp
columns is illogical:

xact_start | timestamp with time zone |
query_start | timestamp with time zone |
backend_start | timestamp with time zone |

query_start is always between the other two timestamps. Moving
query_start before xact_start would make the most sense. I wouldn't
bring this up except we just added application_name before these
columns, so we are already going to have different column locations for
these fields in 9.0.

Should we move query_start?

--
Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://enterprisedb.com

PG East: http://www.enterprisedb.com/community/nav-pg-east-2010.do