HI,
Consider the below test:
postgres@110311=#call sum(2+2);
server closed the connection unexpectedly
This probably means the server terminated abnormally
before or while processing the request.
The connection to the server was lost. Attempting reset: Failed.
Call stack:
(gdb) bt
#0 0x00007fef9b5851d7 in raise () from /lib64/libc.so.6
#1 0x00007fef9b5868c8 in abort () from /lib64/libc.so.6
#2 0x00000000009ec5b5 in ExceptionalCondition (conditionName=0xb7e12b "!(((bool) 0))", errorType=0xb7e04c "FailedAssertion",
fileName=0xb7e040 "parse_agg.c", lineNumber=349) at assert.c:54
#3 0x00000000005dc3b6 in check_agglevels_and_constraints (pstate=0x2d1ba90, expr=0x2d1bd80) at parse_agg.c:349
#4 0x00000000005dc104 in transformAggregateCall (pstate=0x2d1ba90, agg=0x2d1bd80, args=0x2d1c3c0, aggorder=0x0, agg_distinct=0 '\000') at parse_agg.c:237
#5 0x00000000005f4df7 in ParseFuncOrColumn (pstate=0x2d1ba90, funcname=0x2d10578, fargs=0x2d1c3c0, last_srf=0x0, fn=0x2d10760, proc_call=1 '\001',
location=5) at parse_func.c:726