Simply use an array_dims() on any non-array type, the messages vary from:
SIS=# select array_dims(datdba) from pg_database;
pqReadData() -- backend closed the channel unexpectedly.
This probably means the backend terminated abnormally
before or while processing the request.
The connection to the server was lost. Attempting reset: Failed.
!# ;
You are currently not connected to a database.
!# \q
to:
SIS=# select array_dims(datname) from pg_database;
ERROR: MemoryContextAlloc: invalid request size 1702125936
Reproduces consistently on Linux (i386) 2.4.16 running 7.1.3.
Cheers,
Marc L.
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Marc P. Lavergne [wk:407-648-6996]
Product Development
richLAVA Corporation
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