Server crashes when trying to execute SELECT * FROM agtype(null);

[saygoodbyye]

Describe the bug
Server crashes when executing the following SQL-script

How are you accessing AGE (Command line, driver, etc.)?
Accessing AGE through command line.

What data setup do we need to do?
Apache AGE (PG15 branch) with PostgreSQL (REL_15_STABLE).

What is the necessary configuration info needed?
My PostgreSQL configuration:

./configure CFLAGS=" -Og" --enable-tap-tests --enable-debug --enable-cassert

What is the command that caused the error?

create extension age;
SET search_path TO ag_catalog;
SELECT * FROM agtype(null);

backtrace:

#0  __pthread_kill_implementation (no_tid=0, signo=6, threadid=<optimized out>) at ./nptl/pthread_kill.c:44
#1  __pthread_kill_internal (signo=6, threadid=<optimized out>) at ./nptl/pthread_kill.c:78
#2  __GI___pthread_kill (threadid=<optimized out>, signo=signo@entry=6) at ./nptl/pthread_kill.c:89
#3  0x00007f6038a42866 in __GI_raise (sig=sig@entry=6) at ../sysdeps/posix/raise.c:26
#4  0x00007f6038a268b7 in __GI_abort () at ./stdlib/abort.c:79
#5  0x000055c450cd4e41 in ExceptionalCondition (conditionName=conditionName@entry=0x7f602f7ce463 "HeapTupleIsValid(proctup)", 
    errorType=errorType@entry=0x7f602f7cc1d7 "FailedAssertion", fileName=fileName@entry=0x7f602f7ce428 "src/backend/utils/ag_func.c", 
    lineNumber=lineNumber@entry=49) at assert.c:69
#6  0x00007f602f7c6dba in is_oid_ag_func (func_oid=<optimized out>, func_name=func_name@entry=0x7f602f7ccd9c "cypher") at src/backend/utils/ag_func.c:49
#7  0x00007f602f7949ba in is_func_cypher (funcexpr=<optimized out>) at src/backend/parser/cypher_analyze.c:329
#8  0x00007f602f7949f4 in is_rte_cypher (rte=<optimized out>) at src/backend/parser/cypher_analyze.c:305
#9  0x00007f602f794a76 in convert_cypher_walker (node=node@entry=0x55c451a1b1f8, pstate=pstate@entry=0x55c451a1a9b8) at src/backend/parser/cypher_analyze.c:140
#10 0x000055c450a72532 in range_table_entry_walker (rte=0x55c451a1b1f8, walker=walker@entry=0x7f602f7949ff <convert_cypher_walker>, 
    context=context@entry=0x55c451a1a9b8, flags=flags@entry=21) at nodeFuncs.c:2526
#11 0x000055c450a7267f in range_table_walker (rtable=0x55c451a1b6d0, walker=walker@entry=0x7f602f7949ff <convert_cypher_walker>, 
    context=context@entry=0x55c451a1a9b8, flags=flags@entry=21) at nodeFuncs.c:2505
#12 0x000055c450a72871 in query_tree_walker (query=query@entry=0x55c451a1aad0, walker=walker@entry=0x7f602f7949ff <convert_cypher_walker>, 
    context=context@entry=0x55c451a1a9b8, flags=flags@entry=21) at nodeFuncs.c:2482
#13 0x00007f602f794bbb in convert_cypher_walker (node=node@entry=0x55c451a1aad0, pstate=pstate@entry=0x55c451a1a9b8) at src/backend/parser/cypher_analyze.c:234
#14 0x00007f602f794df4 in post_parse_analyze (pstate=0x55c451a1a9b8, query=0x55c451a1aad0, jstate=<optimized out>) at src/backend/parser/cypher_analyze.c:104
#15 0x000055c45090d1d8 in parse_analyze_fixedparams (parseTree=parseTree@entry=0x55c451a1a928, 
    sourceText=sourceText@entry=0x55c451a19970 "SELECT * FROM agtype(null);", paramTypes=paramTypes@entry=0x0, numParams=numParams@entry=0, 
    queryEnv=queryEnv@entry=0x0) at analyze.c:129
#16 0x000055c450ba3220 in pg_analyze_and_rewrite_fixedparams (parsetree=parsetree@entry=0x55c451a1a928, 
    query_string=query_string@entry=0x55c451a19970 "SELECT * FROM agtype(null);", paramTypes=paramTypes@entry=0x0, numParams=numParams@entry=0, 
    queryEnv=queryEnv@entry=0x0) at postgres.c:657
#17 0x000055c450ba38ee in exec_simple_query (query_string=query_string@entry=0x55c451a19970 "SELECT * FROM agtype(null);") at postgres.c:1166
#18 0x000055c450ba5851 in PostgresMain (dbname=<optimized out>, username=<optimized out>) at postgres.c:4598
#19 0x000055c450b0a832 in BackendRun (port=port@entry=0x55c451a3e100) at postmaster.c:4514
#20 0x000055c450b0c842 in BackendStartup (port=port@entry=0x55c451a3e100) at postmaster.c:4242
#21 0x000055c450b0ca7b in ServerLoop () at postmaster.c:1809
#22 0x000055c450b0e050 in PostmasterMain (argc=argc@entry=3, argv=argv@entry=0x55c451a10df0) at postmaster.c:1481
#23 0x000055c450a5adb8 in main (argc=3, argv=0x55c451a10df0) at main.c:202

Expected behavior
Expected ERROR to be shown or sql query to be succesfully executed

Also reproduces on AGE master branch

Best regards,
Egor Chindyaskin
Postgres Professional: http://postgrespro.com/

[jrgemignani]

@theaniketraj Please stop spamming ChatGPT for issues.

[Zainab-Saad]

This issue exists for some other scenarios too like this one

agedb=# SELECT * FROM text(4);
 text 
------
 4
(1 row)
agedb=# LOAD 'age'; SET search_path to ag_catalog;
LOAD
SET
agedb=# SELECT * FROM text(4);
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.
The connection to the server was lost. Attempting reset: Failed.
!?> 

This seems related to #1124
I am working on this.

[jrgemignani]

@saygoodbyye The fix for this has been merged into the master branch. Please check that it fixes your issue. If it does, please consider closing this issue.

[saygoodbyye]

Thank you!