vogelsgesang commented on issue #178:
URL: 
https://github.com/apache/arrow-flight-sql-postgresql/issues/178#issuecomment-1847955072

   Here is the debug output under `log_min_messages=debug5`
   
   
   <details>
   <summary>Log file contents</summary>
   
   ```
   2023-12-08 23:03:29.668 UTC [1126186] DEBUG:  postgres: PostmasterMain: 
initial environment dump:
   2023-12-08 23:03:29.668 UTC [1126186] DEBUG:  
-----------------------------------------
   2023-12-08 23:03:29.668 UTC [1126186] DEBUG:         
PG_OOM_ADJUST_FILE=/proc/self/oom_score_adj
   2023-12-08 23:03:29.668 UTC [1126186] DEBUG:         
PG_GRANDPARENT_PID=1126180
   2023-12-08 23:03:29.668 UTC [1126186] DEBUG:         
PGLOCALEDIR=/usr/share/locale
   2023-12-08 23:03:29.668 UTC [1126186] DEBUG:         
PGSYSCONFDIR=/etc/postgresql-common
   2023-12-08 23:03:29.668 UTC [1126186] DEBUG:         LANG=en_US.UTF-8
   2023-12-08 23:03:29.668 UTC [1126186] DEBUG:         PWD=/
   2023-12-08 23:03:29.668 UTC [1126186] DEBUG:         
PGDATA=/var/lib/postgresql/15/main
   2023-12-08 23:03:29.668 UTC [1126186] DEBUG:         LC_COLLATE=en_US.UTF-8
   2023-12-08 23:03:29.668 UTC [1126186] DEBUG:         LC_CTYPE=en_US.UTF-8
   2023-12-08 23:03:29.668 UTC [1126186] DEBUG:         LC_MESSAGES=en_US.UTF-8
   2023-12-08 23:03:29.668 UTC [1126186] DEBUG:         LC_MONETARY=C
   2023-12-08 23:03:29.668 UTC [1126186] DEBUG:         LC_NUMERIC=C
   2023-12-08 23:03:29.668 UTC [1126186] DEBUG:         LC_TIME=C
   2023-12-08 23:03:29.668 UTC [1126186] DEBUG:  
-----------------------------------------
   2023-12-08 23:03:29.679 UTC [1126186] DEBUG:  registering background worker 
"logical replication launcher"
   2023-12-08 23:03:29.679 UTC [1126186] DEBUG:  find_in_dynamic_libpath: 
trying "/usr/lib/postgresql/15/lib/arrow_flight_sql"
   2023-12-08 23:03:29.679 UTC [1126186] DEBUG:  find_in_dynamic_libpath: 
trying "/usr/lib/postgresql/15/lib/arrow_flight_sql.so"
   2023-12-08 23:03:29.700 UTC [1126186] DEBUG:  registering background worker 
"arrow-flight-sql: main"
   2023-12-08 23:03:29.700 UTC [1126186] DEBUG:  loaded library 
"arrow_flight_sql"
   2023-12-08 23:03:29.703 UTC [1126186] DEBUG:  invoking 
IpcMemoryCreate(size=149520384)
   2023-12-08 23:03:29.704 UTC [1126186] DEBUG:  mmap(150994944) with 
MAP_HUGETLB failed, huge pages disabled: Cannot allocate memory
   2023-12-08 23:03:29.713 UTC [1126186] DEBUG:  dynamic shared memory system 
will support 674 segments
   2023-12-08 23:03:29.713 UTC [1126186] DEBUG:  created dynamic shared memory 
control segment 3514440144 (26976 bytes)
   2023-12-08 23:03:29.780 UTC [1126186] DEBUG:  max_safe_fds = 987, usable_fds 
= 1000, already_open = 3
   2023-12-08 23:03:29.780 UTC [1126186] LOG:  starting PostgreSQL 15.5 (Ubuntu 
15.5-1.pgdg22.04+1) on x86_64-pc-linux-gnu, compiled by gcc (Ubuntu 
11.4.0-1ubuntu1~22.04) 11.4.0, 64-bit
   2023-12-08 23:03:29.780 UTC [1126186] LOG:  listening on IPv4 address 
"127.0.0.1", port 5433
   2023-12-08 23:03:29.780 UTC [1126186] LOG:  could not bind IPv4 address 
"127.0.0.1": Address already in use
   2023-12-08 23:03:29.780 UTC [1126186] HINT:  Is another postmaster already 
running on port 5433? If not, wait a few seconds and retry.
   2023-12-08 23:03:29.780 UTC [1126186] LOG:  could not bind IPv6 address 
"::1": Cannot assign requested address
   2023-12-08 23:03:29.784 UTC [1126186] LOG:  listening on Unix socket 
"/var/run/postgresql/.s.PGSQL.5433"
   2023-12-08 23:03:29.794 UTC [1126188] DEBUG:  checkpointer updated shared 
memory configuration values
   2023-12-08 23:03:29.796 UTC [1126190] LOG:  database system was shut down at 
2023-12-08 23:03:12 UTC
   2023-12-08 23:03:29.796 UTC [1126190] DEBUG:  checkpoint record is at 
0/1979210
   2023-12-08 23:03:29.796 UTC [1126190] DEBUG:  redo record is at 0/1979210; 
shutdown true
   2023-12-08 23:03:29.796 UTC [1126190] DEBUG:  next transaction ID: 740; next 
OID: 24587
   2023-12-08 23:03:29.796 UTC [1126190] DEBUG:  next MultiXactId: 1; next 
MultiXactOffset: 0
   2023-12-08 23:03:29.796 UTC [1126190] DEBUG:  oldest unfrozen transaction 
ID: 716, in database 1
   2023-12-08 23:03:29.796 UTC [1126190] DEBUG:  oldest MultiXactId: 1, in 
database 1
   2023-12-08 23:03:29.796 UTC [1126190] DEBUG:  commit timestamp Xid 
oldest/newest: 0/0
   2023-12-08 23:03:29.796 UTC [1126190] DEBUG:  transaction ID wrap limit is 
2147484363, limited by database with OID 1
   2023-12-08 23:03:29.796 UTC [1126190] DEBUG:  MultiXactId wrap limit is 
2147483648, limited by database with OID 1
   2023-12-08 23:03:29.796 UTC [1126190] DEBUG:  starting up replication slots
   2023-12-08 23:03:29.796 UTC [1126190] DEBUG:  xmin required by slots: data 
0, catalog 0
   2023-12-08 23:03:29.796 UTC [1126190] DEBUG:  starting up replication origin 
progress state
   2023-12-08 23:03:29.796 UTC [1126190] DEBUG:  reading stats file 
"pg_stat/pgstat.stat"
   2023-12-08 23:03:29.797 UTC [1126190] DEBUG:  removing permanent stats file 
"pg_stat/pgstat.stat"
   2023-12-08 23:03:29.797 UTC [1126190] DEBUG:  MultiXactId wrap limit is 
2147483648, limited by database with OID 1
   2023-12-08 23:03:29.797 UTC [1126190] DEBUG:  MultiXact member stop limit is 
now 4294914944 based on MultiXact 1
   2023-12-08 23:03:29.801 UTC [1126190] DEBUG:  shmem_exit(0): 4 
before_shmem_exit callbacks to make
   2023-12-08 23:03:29.801 UTC [1126190] DEBUG:  shmem_exit(0): 6 on_shmem_exit 
callbacks to make
   2023-12-08 23:03:29.801 UTC [1126190] DEBUG:  proc_exit(0): 1 callbacks to 
make
   2023-12-08 23:03:29.801 UTC [1126190] DEBUG:  exit(0)
   2023-12-08 23:03:29.802 UTC [1126190] DEBUG:  shmem_exit(-1): 0 
before_shmem_exit callbacks to make
   2023-12-08 23:03:29.802 UTC [1126190] DEBUG:  shmem_exit(-1): 0 
on_shmem_exit callbacks to make
   2023-12-08 23:03:29.802 UTC [1126190] DEBUG:  proc_exit(-1): 0 callbacks to 
make
   2023-12-08 23:03:29.806 UTC [1126186] DEBUG:  reaping dead processes
   2023-12-08 23:03:29.808 UTC [1126186] DEBUG:  starting background worker 
process "arrow-flight-sql: main"
   2023-12-08 23:03:29.809 UTC [1126192] DEBUG:  autovacuum launcher started
   2023-12-08 23:03:29.810 UTC [1126186] DEBUG:  starting background worker 
process "logical replication launcher"
   2023-12-08 23:03:29.810 UTC [1126192] DEBUG:  InitPostgres
   2023-12-08 23:03:29.810 UTC [1126192] DEBUG:  my backend ID is 1
   2023-12-08 23:03:29.810 UTC [1126192] DEBUG:  StartTransaction(1) name: 
unnamed; blockState: DEFAULT; state: INPROGRESS, xid/subid/cid: 0/1/0
   2023-12-08 23:03:29.810 UTC [1126192] DEBUG:  CommitTransaction(1) name: 
unnamed; blockState: STARTED; state: INPROGRESS, xid/subid/cid: 0/1/0
   2023-12-08 23:03:29.811 UTC [1126186] LOG:  database system is ready to 
accept connections
   2023-12-08 23:03:29.811 UTC [1126193] DEBUG:  find_in_dynamic_libpath: 
trying "/usr/lib/postgresql/15/lib/arrow_flight_sql"
   2023-12-08 23:03:29.811 UTC [1126193] DEBUG:  find_in_dynamic_libpath: 
trying "/usr/lib/postgresql/15/lib/arrow_flight_sql.so"
   2023-12-08 23:03:29.812 UTC [1126194] DEBUG:  logical replication launcher 
started
   2023-12-08 23:03:29.812 UTC [1126194] DEBUG:  InitPostgres
   2023-12-08 23:03:29.812 UTC [1126194] DEBUG:  my backend ID is 2
   2023-12-08 23:03:29.812 UTC [1126194] DEBUG:  StartTransaction(1) name: 
unnamed; blockState: DEFAULT; state: INPROGRESS, xid/subid/cid: 0/1/0
   2023-12-08 23:03:29.812 UTC [1126194] DEBUG:  CommitTransaction(1) name: 
unnamed; blockState: STARTED; state: INPROGRESS, xid/subid/cid: 0/1/0
   2023-12-08 23:03:29.812 UTC [1126194] DEBUG:  StartTransaction(1) name: 
unnamed; blockState: DEFAULT; state: INPROGRESS, xid/subid/cid: 0/1/0
   2023-12-08 23:03:29.812 UTC [1126194] DEBUG:  CommitTransaction(1) name: 
unnamed; blockState: STARTED; state: INPROGRESS, xid/subid/cid: 0/1/0
   2023-12-08 23:03:29.813 UTC [1126194] DEBUG:  StartTransaction(1) name: 
unnamed; blockState: DEFAULT; state: INPROGRESS, xid/subid/cid: 0/1/0
   2023-12-08 23:03:29.813 UTC [1126194] DEBUG:  CommitTransaction(1) name: 
unnamed; blockState: STARTED; state: INPROGRESS, xid/subid/cid: 0/1/0
   2023-12-08 23:03:29.814 UTC [1126186] DEBUG:  registering background worker 
"arrow-flight-sql: server"
   2023-12-08 23:03:29.814 UTC [1126186] DEBUG:  starting background worker 
process "arrow-flight-sql: server"
   2023-12-08 23:03:29.816 UTC [1126195] DEBUG:  find_in_dynamic_libpath: 
trying "/usr/lib/postgresql/15/lib/arrow_flight_sql"
   2023-12-08 23:03:29.816 UTC [1126195] DEBUG:  find_in_dynamic_libpath: 
trying "/usr/lib/postgresql/15/lib/arrow_flight_sql.so"
   2023-12-08 23:03:29.819 UTC [1126195] LOG:  listening on 
grpc://127.0.0.1:15432 for Apache Arrow Flight SQL
   2023-12-08 23:03:30.354 UTC [1126186] DEBUG:  forked new backend, 
pid=1126200 socket=7
   2023-12-08 23:03:30.355 UTC [1126200] [unknown]@[unknown] DEBUG:  
shmem_exit(0): 0 before_shmem_exit callbacks to make
   2023-12-08 23:03:30.355 UTC [1126200] [unknown]@[unknown] DEBUG:  
shmem_exit(0): 0 on_shmem_exit callbacks to make
   2023-12-08 23:03:30.355 UTC [1126200] [unknown]@[unknown] DEBUG:  
proc_exit(0): 1 callbacks to make
   2023-12-08 23:03:30.355 UTC [1126200] [unknown]@[unknown] DEBUG:  exit(0)
   2023-12-08 23:03:30.356 UTC [1126200] [unknown]@[unknown] DEBUG:  
shmem_exit(-1): 0 before_shmem_exit callbacks to make
   2023-12-08 23:03:30.356 UTC [1126200] [unknown]@[unknown] DEBUG:  
shmem_exit(-1): 0 on_shmem_exit callbacks to make
   2023-12-08 23:03:30.356 UTC [1126200] [unknown]@[unknown] DEBUG:  
proc_exit(-1): 0 callbacks to make
   2023-12-08 23:03:30.360 UTC [1126186] DEBUG:  reaping dead processes
   2023-12-08 23:03:30.360 UTC [1126186] DEBUG:  server process (PID 1126200) 
exited with exit code 0
   2023-12-08 23:03:30.866 UTC [1126186] DEBUG:  forked new backend, 
pid=1126203 socket=7
   2023-12-08 23:03:30.867 UTC [1126203] postgres@template1 DEBUG:  InitPostgres
   2023-12-08 23:03:30.867 UTC [1126203] postgres@template1 DEBUG:  my backend 
ID is 3
   2023-12-08 23:03:30.867 UTC [1126203] postgres@template1 DEBUG:  
StartTransaction(1) name: unnamed; blockState: DEFAULT; state: INPROGRESS, 
xid/subid/cid: 0/1/0
   2023-12-08 23:03:30.878 UTC [1126203] postgres@template1 DEBUG:  
CommitTransaction(1) name: unnamed; blockState: STARTED; state: INPROGRESS, 
xid/subid/cid: 0/1/0
   2023-12-08 23:03:30.878 UTC [1126203] postgres@template1 DEBUG:  
StartTransaction(1) name: unnamed; blockState: DEFAULT; state: INPROGRESS, 
xid/subid/cid: 0/1/0
   2023-12-08 23:03:30.879 UTC [1126203] postgres@template1 DEBUG:  
CommitTransaction(1) name: unnamed; blockState: STARTED; state: INPROGRESS, 
xid/subid/cid: 0/1/0
   2023-12-08 23:03:30.879 UTC [1126203] postgres@template1 DEBUG:  
shmem_exit(0): 4 before_shmem_exit callbacks to make
   2023-12-08 23:03:30.879 UTC [1126203] postgres@template1 DEBUG:  
shmem_exit(0): 6 on_shmem_exit callbacks to make
   2023-12-08 23:03:30.879 UTC [1126203] postgres@template1 DEBUG:  
proc_exit(0): 2 callbacks to make
   2023-12-08 23:03:30.879 UTC [1126203] postgres@template1 DEBUG:  exit(0)
   2023-12-08 23:03:30.879 UTC [1126203] postgres@template1 DEBUG:  
shmem_exit(-1): 0 before_shmem_exit callbacks to make
   2023-12-08 23:03:30.879 UTC [1126203] postgres@template1 DEBUG:  
shmem_exit(-1): 0 on_shmem_exit callbacks to make
   2023-12-08 23:03:30.879 UTC [1126203] postgres@template1 DEBUG:  
proc_exit(-1): 0 callbacks to make
   2023-12-08 23:03:30.885 UTC [1126186] DEBUG:  reaping dead processes
   2023-12-08 23:03:30.885 UTC [1126186] DEBUG:  server process (PID 1126203) 
exited with exit code 0
   2023-12-08 23:03:31.394 UTC [1126186] DEBUG:  forked new backend, 
pid=1126231 socket=7
   2023-12-08 23:03:31.395 UTC [1126231] postgres@template1 DEBUG:  InitPostgres
   2023-12-08 23:03:31.395 UTC [1126231] postgres@template1 DEBUG:  my backend 
ID is 3
   2023-12-08 23:03:31.396 UTC [1126231] postgres@template1 DEBUG:  
StartTransaction(1) name: unnamed; blockState: DEFAULT; state: INPROGRESS, 
xid/subid/cid: 0/1/0
   2023-12-08 23:03:31.401 UTC [1126231] postgres@template1 DEBUG:  
CommitTransaction(1) name: unnamed; blockState: STARTED; state: INPROGRESS, 
xid/subid/cid: 0/1/0
   2023-12-08 23:03:31.401 UTC [1126231] postgres@template1 DEBUG:  
StartTransaction(1) name: unnamed; blockState: DEFAULT; state: INPROGRESS, 
xid/subid/cid: 0/1/0
   2023-12-08 23:03:31.401 UTC [1126231] postgres@template1 DEBUG:  
CommitTransaction(1) name: unnamed; blockState: STARTED; state: INPROGRESS, 
xid/subid/cid: 0/1/0
   2023-12-08 23:03:31.401 UTC [1126231] postgres@template1 DEBUG:  
shmem_exit(0): 4 before_shmem_exit callbacks to make
   2023-12-08 23:03:31.401 UTC [1126231] postgres@template1 DEBUG:  
shmem_exit(0): 6 on_shmem_exit callbacks to make
   2023-12-08 23:03:31.401 UTC [1126231] postgres@template1 DEBUG:  
proc_exit(0): 2 callbacks to make
   2023-12-08 23:03:31.401 UTC [1126231] postgres@template1 DEBUG:  exit(0)
   2023-12-08 23:03:31.402 UTC [1126231] postgres@template1 DEBUG:  
shmem_exit(-1): 0 before_shmem_exit callbacks to make
   2023-12-08 23:03:31.402 UTC [1126231] postgres@template1 DEBUG:  
shmem_exit(-1): 0 on_shmem_exit callbacks to make
   2023-12-08 23:03:31.402 UTC [1126231] postgres@template1 DEBUG:  
proc_exit(-1): 0 callbacks to make
   2023-12-08 23:03:31.408 UTC [1126186] DEBUG:  reaping dead processes
   2023-12-08 23:03:31.408 UTC [1126186] DEBUG:  server process (PID 1126231) 
exited with exit code 0
   2023-12-08 23:03:31.916 UTC [1126186] DEBUG:  forked new backend, 
pid=1126234 socket=7
   2023-12-08 23:03:31.918 UTC [1126234] postgres@template1 DEBUG:  InitPostgres
   2023-12-08 23:03:31.918 UTC [1126234] postgres@template1 DEBUG:  my backend 
ID is 3
   2023-12-08 23:03:31.918 UTC [1126234] postgres@template1 DEBUG:  
StartTransaction(1) name: unnamed; blockState: DEFAULT; state: INPROGRESS, 
xid/subid/cid: 0/1/0
   2023-12-08 23:03:31.923 UTC [1126234] postgres@template1 DEBUG:  
CommitTransaction(1) name: unnamed; blockState: STARTED; state: INPROGRESS, 
xid/subid/cid: 0/1/0
   2023-12-08 23:03:31.923 UTC [1126234] postgres@template1 DEBUG:  
StartTransaction(1) name: unnamed; blockState: DEFAULT; state: INPROGRESS, 
xid/subid/cid: 0/1/0
   2023-12-08 23:03:31.923 UTC [1126234] postgres@template1 DEBUG:  
CommitTransaction(1) name: unnamed; blockState: STARTED; state: INPROGRESS, 
xid/subid/cid: 0/1/0
   2023-12-08 23:03:31.924 UTC [1126234] postgres@template1 DEBUG:  
shmem_exit(0): 4 before_shmem_exit callbacks to make
   2023-12-08 23:03:31.924 UTC [1126234] postgres@template1 DEBUG:  
shmem_exit(0): 6 on_shmem_exit callbacks to make
   2023-12-08 23:03:31.924 UTC [1126234] postgres@template1 DEBUG:  
proc_exit(0): 2 callbacks to make
   2023-12-08 23:03:31.924 UTC [1126234] postgres@template1 DEBUG:  exit(0)
   2023-12-08 23:03:31.924 UTC [1126234] postgres@template1 DEBUG:  
shmem_exit(-1): 0 before_shmem_exit callbacks to make
   2023-12-08 23:03:31.924 UTC [1126234] postgres@template1 DEBUG:  
shmem_exit(-1): 0 on_shmem_exit callbacks to make
   2023-12-08 23:03:31.924 UTC [1126234] postgres@template1 DEBUG:  
proc_exit(-1): 0 callbacks to make
   2023-12-08 23:03:31.930 UTC [1126186] DEBUG:  reaping dead processes
   2023-12-08 23:03:31.930 UTC [1126186] DEBUG:  server process (PID 1126234) 
exited with exit code 0
   2023-12-08 23:03:44.821 UTC [1126189] DEBUG:  snapshot of 0+0 running 
transaction ids (lsn 0/19792C0 oldest xid 740 latest complete 739 next xid 740)
   2023-12-08 23:04:29.858 UTC [1126192] DEBUG:  StartTransaction(1) name: 
unnamed; blockState: DEFAULT; state: INPROGRESS, xid/subid/cid: 0/1/0
   2023-12-08 23:04:29.858 UTC [1126192] DEBUG:  CommitTransaction(1) name: 
unnamed; blockState: STARTED; state: INPROGRESS, xid/subid/cid: 0/1/0
   2023-12-08 23:04:29.861 UTC [1126462] DEBUG:  InitPostgres
   2023-12-08 23:04:29.865 UTC [1126462] DEBUG:  my backend ID is 3
   2023-12-08 23:04:29.865 UTC [1126462] DEBUG:  StartTransaction(1) name: 
unnamed; blockState: DEFAULT; state: INPROGRESS, xid/subid/cid: 0/1/0
   2023-12-08 23:04:29.867 UTC [1126462] DEBUG:  CommitTransaction(1) name: 
unnamed; blockState: STARTED; state: INPROGRESS, xid/subid/cid: 0/1/0
   2023-12-08 23:04:29.867 UTC [1126462] DEBUG:  autovacuum: processing 
database "template1"
   2023-12-08 23:04:29.867 UTC [1126462] DEBUG:  StartTransaction(1) name: 
unnamed; blockState: DEFAULT; state: INPROGRESS, xid/subid/cid: 0/1/0
   2023-12-08 23:04:29.867 UTC [1126462] DEBUG:  pg_authid: vac: 0 (threshold 
53), ins: 0 (threshold 1003), anl: 0 (threshold 51)
   2023-12-08 23:04:29.867 UTC [1126462] DEBUG:  pg_subscription: vac: 0 
(threshold 50), ins: 0 (threshold 1000), anl: 0 (threshold 50)
   2023-12-08 23:04:29.867 UTC [1126462] DEBUG:  pg_attribute: vac: 0 
(threshold 661), ins: 0 (threshold 1611), anl: 0 (threshold 355)
   2023-12-08 23:04:29.867 UTC [1126462] DEBUG:  pg_class: vac: 0 (threshold 
132), ins: 0 (threshold 1082), anl: 0 (threshold 91)
   2023-12-08 23:04:29.867 UTC [1126462] DEBUG:  pg_index: vac: 0 (threshold 
82), ins: 0 (threshold 1032), anl: 0 (threshold 66)
   2023-12-08 23:04:29.867 UTC [1126462] DEBUG:  pg_opclass: vac: 0 (threshold 
85), ins: 0 (threshold 1035), anl: 0 (threshold 68)
   2023-12-08 23:04:29.867 UTC [1126462] DEBUG:  pg_am: vac: 0 (threshold 51), 
ins: 0 (threshold 1001), anl: 0 (threshold 51)
   2023-12-08 23:04:29.867 UTC [1126462] DEBUG:  pg_amproc: vac: 0 (threshold 
189), ins: 0 (threshold 1139), anl: 0 (threshold 120)
   2023-12-08 23:04:29.867 UTC [1126462] DEBUG:  pg_database: vac: 0 (threshold 
50), ins: 0 (threshold 1000), anl: 0 (threshold 50)
   2023-12-08 23:04:29.867 UTC [1126462] DEBUG:  CommitTransaction(1) name: 
unnamed; blockState: STARTED; state: INPROGRESS, xid/subid/cid: 0/1/0
   2023-12-08 23:04:29.868 UTC [1126462] DEBUG:  shmem_exit(0): 4 
before_shmem_exit callbacks to make
   2023-12-08 23:04:29.868 UTC [1126462] DEBUG:  shmem_exit(0): 7 on_shmem_exit 
callbacks to make
   2023-12-08 23:04:29.868 UTC [1126462] DEBUG:  proc_exit(0): 1 callbacks to 
make
   2023-12-08 23:04:29.868 UTC [1126462] DEBUG:  exit(0)
   2023-12-08 23:04:29.868 UTC [1126462] DEBUG:  shmem_exit(-1): 0 
before_shmem_exit callbacks to make
   2023-12-08 23:04:29.868 UTC [1126462] DEBUG:  shmem_exit(-1): 0 
on_shmem_exit callbacks to make
   2023-12-08 23:04:29.868 UTC [1126462] DEBUG:  proc_exit(-1): 0 callbacks to 
make
   2023-12-08 23:04:29.874 UTC [1126186] DEBUG:  reaping dead processes
   2023-12-08 23:04:29.874 UTC [1126186] DEBUG:  server process (PID 1126462) 
exited with exit code 0
   2023-12-08 23:04:35.223 UTC [1126186] DEBUG:  registering background worker 
"arrow-flight-sql: executor: 9383821395685254437"
   2023-12-08 23:04:35.223 UTC [1126186] DEBUG:  starting background worker 
process "arrow-flight-sql: executor: 9383821395685254437"
   2023-12-08 23:04:35.224 UTC [1126533] DEBUG:  find_in_dynamic_libpath: 
trying "/usr/lib/postgresql/15/lib/arrow_flight_sql"
   2023-12-08 23:04:35.224 UTC [1126533] DEBUG:  find_in_dynamic_libpath: 
trying "/usr/lib/postgresql/15/lib/arrow_flight_sql.so"
   2023-12-08 23:04:35.224 UTC [1126533] DEBUG:  InitPostgres
   2023-12-08 23:04:35.224 UTC [1126533] DEBUG:  my backend ID is 3
   2023-12-08 23:04:35.225 UTC [1126533] DEBUG:  StartTransaction(1) name: 
unnamed; blockState: DEFAULT; state: INPROGRESS, xid/subid/cid: 0/1/0
   2023-12-08 23:04:35.228 UTC [1126533] DEBUG:  CommitTransaction(1) name: 
unnamed; blockState: STARTED; state: INPROGRESS, xid/subid/cid: 0/1/0
   2023-12-08 23:04:35.232 UTC [1126533] DEBUG:  StartTransaction(1) name: 
unnamed; blockState: DEFAULT; state: INPROGRESS, xid/subid/cid: 0/1/0
   2023-12-08 23:04:35.232 UTC [1126533] DEBUG:  CommitTransaction(1) name: 
unnamed; blockState: STARTED; state: INPROGRESS, xid/subid/cid: 0/1/0
   ```
   
   </details>
   
   The query from ADBC was sent at 23:04:29 in the log file


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