#0  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
#1  0x00007f12d7fa5535 in __GI_abort () at abort.c:79
#2  0x0000556dfbafe5d8 in ExceptionalCondition (conditionName=conditionName@entry=0x556dfbcaceb0 "total_allocated == context->mem_allocated",
    errorType=errorType@entry=0x556dfbb54028 "FailedAssertion", fileName=fileName@entry=0x556dfbcacc33 "aset.c", lineNumber=lineNumber@entry=1541)
    at assert.c:67
#3  0x0000556dfbb23761 in AllocSetCheck (context=context@entry=0x556dfdd5cf40) at aset.c:1541
#4  0x0000556dfbb238aa in AllocSetDelete (context=0x556dfdd5cf40) at aset.c:655
#5  0x0000556dfbb2a8e0 in MemoryContextDelete (context=0x556dfdd5cf40) at mcxt.c:245
#6  0x0000556dfbb0b6e0 in hash_destroy (hashp=hashp@entry=0x556dfdd6bf68) at dynahash.c:829
#7  0x0000556dfba9ca90 in set_rtable_names (dpns=dpns@entry=0x7ffeb9b1ad50, parent_namespaces=parent_namespaces@entry=0x0, rels_used=0x556dfdd3b590)
    at ruleutils.c:3578
#8  0x0000556dfbaa0343 in select_rtable_names_for_explain (rtable=<optimized out>, rels_used=<optimized out>) at ruleutils.c:3418
#9  0x0000556dfb7d994e in ExplainPrintPlan (es=es@entry=0x556dfdc75d10, queryDesc=queryDesc@entry=0x556dfdd3b4f8) at explain.c:702
#10 0x0000556dfb7d9fe1 in ExplainOnePlan (plannedstmt=plannedstmt@entry=0x556dfdd3b3e0, into=into@entry=0x0, es=es@entry=0x556dfdc75d10,
    queryString=queryString@entry=0x556dfdc51690 "EXPLAIN ANALYZE SELECT a, b, c, d, count(*)\n   FROM (SELECT * FROM t ORDER BY a, b, c) foo GROUP BY a, b, c, d\n   LIMIT 100;", params=params@entry=0x0, queryEnv=queryEnv@entry=0x0, planduration=0x7ffeb9b1aeb0) at explain.c:564
#11 0x0000556dfb7da1e2 in ExplainOneQuery (query=<optimized out>, cursorOptions=cursorOptions@entry=256, into=into@entry=0x0, es=es@entry=0x556dfdc75d10,
    queryString=0x556dfdc51690 "EXPLAIN ANALYZE SELECT a, b, c, d, count(*)\n   FROM (SELECT * FROM t ORDER BY a, b, c) foo GROUP BY a, b, c, d\n   LIMIT 100;", params=params@entry=0x0, queryEnv=0x0) at explain.c:388
#12 0x0000556dfb7dab4c in ExplainQuery (pstate=pstate@entry=0x556dfdc74e80, stmt=stmt@entry=0x556dfdc534c8, params=params@entry=0x0,
    dest=dest@entry=0x556dfdc75c78) at ../../../src/include/nodes/nodes.h:594
#13 0x0000556dfb9e2ca1 in standard_ProcessUtility (pstmt=0x556dfdcfca78,
    queryString=0x556dfdc51690 "EXPLAIN ANALYZE SELECT a, b, c, d, count(*)\n   FROM (SELECT * FROM t ORDER BY a, b, c) foo GROUP BY a, b, c, d\n   LIMIT 100;", context=PROCESS_UTILITY_TOPLEVEL, params=0x0, queryEnv=0x0, dest=0x556dfdc75c78, qc=0x7ffeb9b1b080) at utility.c:827
#14 0x0000556dfb9e31f2 in ProcessUtility (pstmt=pstmt@entry=0x556dfdcfca78, queryString=<optimized out>, context=<optimized out>, params=<optimized out>,
    queryEnv=<optimized out>, dest=dest@entry=0x556dfdc75c78, qc=0x7ffeb9b1b080) at utility.c:522
#15 0x0000556dfb9df742 in PortalRunUtility (portal=portal@entry=0x556dfdcb9b40, pstmt=0x556dfdcfca78, isTopLevel=<optimized out>,
    setHoldSnapshot=setHoldSnapshot@entry=true, dest=dest@entry=0x556dfdc75c78, qc=qc@entry=0x7ffeb9b1b080) at pquery.c:1157
#16 0x0000556dfb9e0526 in FillPortalStore (portal=portal@entry=0x556dfdcb9b40, isTopLevel=isTopLevel@entry=true) at ../../../src/include/nodes/nodes.h:594
#17 0x0000556dfb9e1051 in PortalRun (portal=portal@entry=0x556dfdcb9b40, count=count@entry=9223372036854775807, isTopLevel=isTopLevel@entry=true,
    run_once=run_once@entry=true, dest=dest@entry=0x556dfdcfe4c8, altdest=altdest@entry=0x556dfdcfe4c8, qc=0x7ffeb9b1b280) at pquery.c:751
#18 0x0000556dfb9dd218 in exec_simple_query (
    query_string=query_string@entry=0x556dfdc51690 "EXPLAIN ANALYZE SELECT a, b, c, d, count(*)\n   FROM (SELECT * FROM t ORDER BY a, b, c) foo GROUP BY a, b, c, d\n   LIMIT 100;") at postgres.c:1236
#19 0x0000556dfb9df2a2 in PostgresMain (argc=<optimized out>, argv=argv@entry=0x556dfdc7dc10, dbname=<optimized out>, username=<optimized out>)
    at postgres.c:4295
#20 0x0000556dfb951258 in BackendRun (port=port@entry=0x556dfdc77490) at postmaster.c:4510
#21 0x0000556dfb9544e2 in BackendStartup (port=port@entry=0x556dfdc77490) at postmaster.c:4202
#22 0x0000556dfb954705 in ServerLoop () at postmaster.c:1727
#23 0x0000556dfb955cb1 in PostmasterMain (argc=<optimized out>, argv=<optimized out>) at postmaster.c:1400
#24 0x0000556dfb8a40b1 in main (argc=3, argv=0x556dfdc4a9b0) at main.c:210