"Bannert Matthias" <bannert@xxxxxxxxxxx> writes: > Thanks for your reply. I do think it is rather a postgres than an R issue, here's why: > a) R simply puts an SQL string together. What Charles had posted was an excerpt of that string. > Basically we have 1.7 MB of that string. Everything else is equal just the hstore contains 40K key value pairs. Well, as a test I ran a query that included an hstore literal with 4 million key/value pairs (a bit shy of 70MB of query text). I didn't see any misbehavior on a machine with 2MB max_stack_depth. So there's something else going on in your situation. I concur with the suggestion to try to get a stack backtrace from the point of the error. Setting a breakpoint at errfinish() is usually an effective strategy when you know that the query will provoke a SQL error report. https://wiki.postgresql.org/wiki/Generating_a_stack_trace_of_a_PostgreSQL_backend regards, tom lane -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general