PG_VERSION_USED=17 ./start_oss_server.sh -d /tmp/pgsql/data -p 5432 -x -r -c

psql -h 127.0.0.1 -d postgres -p 5432 -f test.sql

SELECT documentdb_api.insert('db', '{"insert":"targetCollForView", "documents":[{ "_id" : 1, "a" : 1  }]}');
SELECT documentdb_api.create_collection_view('db', '{ "create": "targetView", "viewOn": "targetCollForView", "pipeline": [ { "$sort": { "a": 1 } } ] }');
SET search_path TO documentdb_api,documentdb_core,documentdb_api_catalog;
SELECT document FROM bson_aggregation_find('db', '{ "find": "targetView", "projection": {}, "sort": { "$natural": 1 }}');

Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x00006167b4454039 in bms_add_members (a=0x4ea000000023, b=b@entry=0x6167b6a80720) at bitmapset.c:939
939             if (a->nwords < b->nwords)
(gdb) bt
#0  0x00006167b4454039 in bms_add_members (a=0x4ea000000023, b=b@entry=0x6167b6a80720) at bitmapset.c:939
#1  0x00006167b44d223c in add_vars_to_targetlist (root=root@entry=0x6167b6a7fe48, vars=vars@entry=0x6167b6a806d8, where_needed=0x6167b6a80720)
    at initsplan.c:314
#2  0x00006167b44d22d7 in build_base_rel_tlists (root=0x6167b6a7fe48, final_tlist=<optimized out>) at initsplan.c:243
#3  0x00006167b44d54b9 in query_planner (root=root@entry=0x6167b6a7fe48, qp_callback=qp_callback@entry=0x6167b44d5be0 <standard_qp_callback>,
    qp_extra=qp_extra@entry=0x7ffc87de3490) at planmain.c:182
#4  0x00006167b44da9d7 in grouping_planner (root=root@entry=0x6167b6a7fe48, tuple_fraction=<optimized out>, tuple_fraction@entry=0,
    setops=setops@entry=0x0) at planner.c:1553
#5  0x00006167b44dd9a3 in subquery_planner (glob=glob@entry=0x6167b6a7fbb0, parse=parse@entry=0x6167b68e5320, parent_root=parent_root@entry=0x0,
    hasRecursion=hasRecursion@entry=false, tuple_fraction=tuple_fraction@entry=0, setops=setops@entry=0x0) at planner.c:1122
#6  0x00006167b44ddd32 in standard_planner (parse=0x6167b68e5320, query_string=query_string@entry=0x0, cursorOptions=2048, boundParams=0x0)
    at planner.c:416
#7  0x000072b7b5520c06 in distributed_planner (parse=0x6167b68e5320,
    query_string=0x6167b6868128 "SELECT document FROM bson_aggregation_find('db', '{ \"find\": \"targetView\", \"projection\": {}, \"sort\": { \"$natural\": -1 }}');", cursorOptions=<optimized out>, boundParams=0x0) at planner/distributed_planner.c:276
#8  0x000072b7b1f7081d in DocumentDBApiPlanner (parse=0x6167b68e5320,
    queryString=0x6167b6868128 "SELECT document FROM bson_aggregation_find('db', '{ \"find\": \"targetView\", \"projection\": {}, \"sort\": { \"$natural\": -1 }}');", cursorOptions=2048, boundParams=0x0) at src/planner/documents_planner.c:221
#9  0x00006167b45a66ce in pg_plan_query (querytree=querytree@entry=0x6167b6869230,
    query_string=query_string@entry=0x6167b6868128 "SELECT document FROM bson_aggregation_find('db', '{ \"find\": \"targetView\", \"projection\": {}, \"sort\": { \"$natural\": -1 }}');", cursorOptions=cursorOptions@entry=2048, boundParams=boundParams@entry=0x0) at postgres.c:908
#10 0x00006167b45a67c3 in pg_plan_queries (querytrees=0x6167b68e4b68,
    query_string=query_string@entry=0x6167b6868128 "SELECT document FROM bson_aggregation_find('db', '{ \"find\": \"targetView\", \"projection\": {}, \"sort\": { \"$natural\": -1 }}');", cursorOptions=cursorOptions@entry=2048, boundParams=boundParams@entry=0x0) at postgres.c:1000
#11 0x00006167b45a6a82 in exec_simple_query (
    query_string=0x6167b6868128 "SELECT document FROM bson_aggregation_find('db', '{ \"find\": \"targetView\", \"projection\": {}, \"sort\": { \"$natural\": -1 }}');") at postgres.c:1197
#12 0x00006167b45a7f0b in PostgresMain (dbname=<optimized out>, username=<optimized out>) at postgres.c:4767
#13 0x00006167b45a3155 in BackendMain (startup_data=<optimized out>, startup_data_len=<optimized out>) at backend_startup.c:105
#14 0x00006167b45138cf in postmaster_child_launch (child_type=child_type@entry=B_BACKEND, startup_data=startup_data@entry=0x7ffc87de3da0 "",
    startup_data_len=startup_data_len@entry=4, client_sock=client_sock@entry=0x7ffc87de3dc0) at launch_backend.c:277
#15 0x00006167b4517399 in BackendStartup (client_sock=0x7ffc87de3dc0) at postmaster.c:3594
#16 ServerLoop () at postmaster.c:1676
#17 0x00006167b4519131 in PostmasterMain (argc=argc@entry=3, argv=argv@entry=0x6167b6822120) at postmaster.c:1374
#18 0x00006167b4256462 in main (argc=3, argv=0x6167b6822120) at main.c:199