Re: "out of balance" result on select from suspected index corruption

"Henry - Zen Search SA" <henry@zen.co.za> writes:
> Our selects which have run normally for a very long time suddenly started:

> - consuming all memory.
> - crashing (oom) if the select was run directly.
> - producing "out of balance" results in one of the column results if run
> from within a function.

The string "out of balance" appears nowhere in the PG 8.2.x sources.
So I suppose it must have come from some add-on code, or perhaps got
inserted on the client side.  What data type is that column, and what
non-core code is involved?

            regards, tom lane