This becomes clearer when I perform this in a PREPARE:
# PREPARE foo AS SELECT ROW(1) OVERLAPS ROW(2);
ERROR: 54001: stack depth limit exceeded
HINT: Increase the configuration parameter "max_stack_depth"
(currently 2048kB), after ensuring the platform's stack depth limit is
adequate.
LOCATION: check_stack_depth, postgres.c:3090
On Fri, Feb 14, 2014 at 7:55 PM, <pythonesque@gmail.com> wrote:
> The following bug has been logged on the website:
>
> Bug reference: 9227
> Logged by: Joshua Yanovski
> Email address: pythonesque@gmail.com
> PostgreSQL version: 9.3.2
> Operating system: Ubuntu 12.0.4
> Description:
>
> # SELECT ROW (1) OVERLAPS ROW (2);
> ERROR: XX000: unrecognized node type: 656
> LOCATION: transformExprRecurse, parse_expr.c:359
>
> I'm not sure why this even parses, as it's not documented to do so. I do
> notice, however, that in makeOverlaps in gram.y creates a recursive list
> when largs or args has only one argument, which seems wrong to me.
>
>
>
--
Josh
