postgresql.pl script does not work for postgresql greate than 9.2

The unix-agent script "postgresql.pl" is not working on postgres 9.2 and above. From Postgresql 9.2 the "current_query" in pg_stat_activity was split to two columns "state" and "query" causing the postgresql.pl script bundled with observium to cast a "Execution failed" error message.
Source: [https://wiki.postgresql.org/wiki/What's_new_in_PostgreSQL_9.2#pg_stat_activity_and_pg_stat_replication.27s_definitions_have_changed
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The workaround would be to make a check for postgres version and have two different queries.

Best Regards.