Postgres query

Hi All

Can anyone assist in shedding some light here.

We getting this query popping up in our postgresql log file at the same time as the connections to the databases starts increasing.
Not sure what is initiating this query, but we get around a hundred per second until we restart our applications.
Any help will be appreciated.

The Query :

"select $1[s], s - pg_catalog.array_lower($1,1) + 1
from pg_catalog.generate_series(pg_catalog.array_lower($1,1),
pg_catalog.array_upper($1,1),1) as g(s)"

Regards
Ian

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