Core was generated by `postgres: postgres test [local] SELECT '. Program terminated with signal SIGSEGV, Segmentation fault. #0 MemoryContextAllocZero (context=context@entry=0x561c0598cf40, size=size@entry=48) at mcxt.c:852 852 ret = context->methods->alloc(context, size); (gdb) bt #0 MemoryContextAllocZero (context=context@entry=0x561c0598cf40, size=size@entry=48) at mcxt.c:852 #1 0x0000561c0467b95c in pagetable_create (nelements=128, private_data=0x7f155f7ef000, ctx=0x561c0598cf40) at ../../../src/include/lib/simplehash.h:457 #2 tbm_create_pagetable (tbm=tbm@entry=0x7f155f7ef000) at tidbitmap.c:296 #3 0x0000561c0467bae3 in tbm_get_pageentry (tbm=tbm@entry=0x7f155f7ef000, pageno=3779) at tidbitmap.c:1303 #4 0x0000561c0467bed5 in tbm_union_page (a=a@entry=0x7f155f7ef000, bpage=0x7f155f7e21b8) at tidbitmap.c:514 #5 0x0000561c0467c5a0 in tbm_union (b=0x561c059cd468, a=0x7f155f7ef000) at tidbitmap.c:474 #6 tbm_union (a=0x7f155f7ef000, b=0x561c059cd468) at tidbitmap.c:457 #7 0x0000561c0467cb77 in tbm_merge (tbm=0x561c059cd468, dp_tbm=, dp_pagetable=0x7f155f8d4418) at tidbitmap.c:822 #8 0x0000561c0461c80f in BitmapHeapNext (node=node@entry=0x561c05996400) at nodeBitmapHeapscan.c:228 #9 0x0000561c0460f611 in ExecScanFetch (recheckMtd=0x561c0461bf10 , accessMtd=0x561c0461bfa0 , node=0x561c05996400) at execScan.c:133 #10 ExecScan (node=0x561c05996400, accessMtd=0x561c0461bfa0 , recheckMtd=0x561c0461bf10 ) at execScan.c:182 #11 0x0000561c04615d31 in ExecProcNode (node=0x561c05996400) at ../../../src/include/executor/executor.h:247 #12 fetch_input_tuple (aggstate=aggstate@entry=0x561c05995d98) at nodeAgg.c:589 #13 0x0000561c046188c8 in agg_retrieve_direct (aggstate=) at nodeAgg.c:2356 #14 ExecAgg (pstate=) at nodeAgg.c:2171 #15 0x0000561c0461f487 in ExecProcNode (node=0x561c05995d98) at ../../../src/include/executor/executor.h:247 #16 gather_getnext (gatherstate=0x561c05995bf8) at nodeGather.c:295 #17 ExecGather (pstate=0x561c05995bf8) at nodeGather.c:227 #18 0x0000561c04615d31 in ExecProcNode (node=0x561c05995bf8) at ../../../src/include/executor/executor.h:247 #19 fetch_input_tuple (aggstate=aggstate@entry=0x561c059955d0) at nodeAgg.c:589 #20 0x0000561c046188c8 in agg_retrieve_direct (aggstate=) at nodeAgg.c:2356 #21 ExecAgg (pstate=) at nodeAgg.c:2171 #22 0x0000561c04606b4b in ExecProcNode (node=0x561c059955d0) at ../../../src/include/executor/executor.h:247 #23 ExecutePlan (execute_once=, dest=0x561c059c6550, direction=, numberTuples=0, sendTuples=, operation=CMD_SELECT, use_parallel_mode=, planstate=0x561c059955d0, estate=0x561c05995378) at execMain.c:1542 #24 standard_ExecutorRun (queryDesc=0x561c058fdac8, direction=, count=0, execute_once=) at execMain.c:364 #25 0x0000561c0475f39c in PortalRunSelect (portal=0x561c0593f758, forward=, count=0, dest=) at pquery.c:912 #26 0x0000561c04760546 in PortalRun (portal=portal@entry=0x561c0593f758, count=count@entry=9223372036854775807, isTopLevel=isTopLevel@entry=true, run_once=run_once@entry=true, dest=dest@entry=0x561c059c6550, altdest=altdest@entry=0x561c059c6550, qc=0x7ffd52084c80) at pquery.c:756 #27 0x0000561c0475c33c in exec_simple_query (query_string=0x561c058dbce8 "select count(b)from t where a between 3387 and 4027;") at postgres.c:1239 #28 0x0000561c0475dee0 in PostgresMain (argc=argc@entry=1, argv=argv@entry=0x7ffd520850e0, dbname=, username=) at postgres.c:4305 #29 0x0000561c046e709c in BackendRun (port=, port=) at postmaster.c:4488 #30 BackendStartup (port=) at postmaster.c:4210 #31 ServerLoop () at postmaster.c:1727 #32 0x0000561c046e7f3f in PostmasterMain (argc=, argv=0x561c058d6550) at postmaster.c:1400 #33 0x0000561c0448d970 in main (argc=3, argv=0x561c058d6550) at main.c:209 Core was generated by `postgres: postgres test [local] EXPLAIN '. Program terminated with signal SIGSEGV, Segmentation fault. #0 MemoryContextAllocZero (context=context@entry=0x561c0598ed90, size=size@entry=48) at mcxt.c:852 852 ret = context->methods->alloc(context, size); (gdb) bt #0 MemoryContextAllocZero (context=context@entry=0x561c0598ed90, size=size@entry=48) at mcxt.c:852 #1 0x0000561c0467b95c in pagetable_create (nelements=128, private_data=0x7f155f7ef000, ctx=0x561c0598ed90) at ../../../src/include/lib/simplehash.h:457 #2 tbm_create_pagetable (tbm=tbm@entry=0x7f155f7ef000) at tidbitmap.c:296 #3 0x0000561c0467bae3 in tbm_get_pageentry (tbm=tbm@entry=0x7f155f7ef000, pageno=3774) at tidbitmap.c:1303 #4 0x0000561c0467bed5 in tbm_union_page (a=a@entry=0x7f155f7ef000, bpage=0x7f155f7e2008) at tidbitmap.c:514 #5 0x0000561c0467c5a0 in tbm_union (b=0x561c059d0c78, a=0x7f155f7ef000) at tidbitmap.c:474 #6 tbm_union (a=0x7f155f7ef000, b=0x561c059d0c78) at tidbitmap.c:457 #7 0x0000561c0467cb77 in tbm_merge (tbm=0x561c059d0c78, dp_tbm=, dp_pagetable=0x7f155f8d4458) at tidbitmap.c:822 #8 0x0000561c0461c80f in BitmapHeapNext (node=node@entry=0x561c059b4910) at nodeBitmapHeapscan.c:228 #9 0x0000561c0460f611 in ExecScanFetch (recheckMtd=0x561c0461bf10 , accessMtd=0x561c0461bfa0 , node=0x561c059b4910) at execScan.c:133 #10 ExecScan (node=0x561c059b4910, accessMtd=0x561c0461bfa0 , recheckMtd=0x561c0461bf10 ) at execScan.c:182 #11 0x0000561c0460ccd9 in ExecProcNodeInstr (node=0x561c059b4910) at execProcnode.c:466 #12 0x0000561c04615d31 in ExecProcNode (node=0x561c059b4910) at ../../../src/include/executor/executor.h:247 #13 fetch_input_tuple (aggstate=aggstate@entry=0x561c059b42a8) at nodeAgg.c:589 #14 0x0000561c046188c8 in agg_retrieve_direct (aggstate=) at nodeAgg.c:2356 #15 ExecAgg (pstate=) at nodeAgg.c:2171 #16 0x0000561c0460ccd9 in ExecProcNodeInstr (node=0x561c059b42a8) at execProcnode.c:466 #17 0x0000561c0461f487 in ExecProcNode (node=0x561c059b42a8) at ../../../src/include/executor/executor.h:247 #18 gather_getnext (gatherstate=0x561c059b4108) at nodeGather.c:295 #19 ExecGather (pstate=0x561c059b4108) at nodeGather.c:227 #20 0x0000561c0460ccd9 in ExecProcNodeInstr (node=0x561c059b4108) at execProcnode.c:466 #21 0x0000561c04615d31 in ExecProcNode (node=0x561c059b4108) at ../../../src/include/executor/executor.h:247 #22 fetch_input_tuple (aggstate=aggstate@entry=0x561c059b3ae0) at nodeAgg.c:589 #23 0x0000561c046188c8 in agg_retrieve_direct (aggstate=) at nodeAgg.c:2356 #24 ExecAgg (pstate=) at nodeAgg.c:2171 #25 0x0000561c0460ccd9 in ExecProcNodeInstr (node=0x561c059b3ae0) at execProcnode.c:466 #26 0x0000561c04606b4b in ExecProcNode (node=0x561c059b3ae0) at ../../../src/include/executor/executor.h:247 #27 ExecutePlan (execute_once=, dest=0x561c04aedec0 , direction=, numberTuples=0, sendTuples=, operation=CMD_SELECT, use_parallel_mode=, planstate=0x561c059b3ae0, estate=0x561c059b3888) at execMain.c:1542 #28 standard_ExecutorRun (queryDesc=0x561c059b2148, direction=, count=0, execute_once=) at execMain.c:364 #29 0x0000561c045b2edb in ExplainOnePlan (plannedstmt=plannedstmt@entry=0x561c059b20b8, into=into@entry=0x0, es=es@entry=0x561c05904e48, queryString=queryString@entry=0x561c058dbce8 "explain (analyze, costs off, timing off) select count(b) from t where a between 2650 and 3290;", params=params@entry=0x0, queryEnv=queryEnv@entry=0x0, planduration=0x7ffd520847c0, bufusage=0x0) at explain.c:571 #30 0x0000561c045b3294 in ExplainOneQuery (queryEnv=0x0, params=0x0, queryString=0x561c058dbce8 "explain (analyze, costs off, timing off) select count(b) from t where a between 2650 and 3290;", es=0x561c05904e48, into=0x0, cursorOptions=, query=) at explain.c:397 #31 ExplainOneQuery (query=, cursorOptions=, into=0x0, es=0x561c05904e48, queryString=0x561c058dbce8 "explain (analyze, costs off, timing off) select count(b) from t where a between 2650 and 3290;", params=0x0, queryEnv=0x0) at explain.c:361 #32 0x0000561c045b3857 in ExplainQuery (pstate=pstate@entry=0x561c058fdc80, stmt=stmt@entry=0x561c058dcf60, params=params@entry=0x0, dest=dest@entry=0x561c058fdbf0) at explain.c:275 #33 0x0000561c04761a21 in standard_ProcessUtility (pstmt=0x561c058dd6c8, queryString=0x561c058dbce8 "explain (analyze, costs off, timing off) select count(b) from t where a between 2650 and 3290;", context=PROCESS_UTILITY_TOPLEVEL, params=0x0, queryEnv=0x0, dest=0x561c058fdbf0, qc=0x7ffd52084a80) at utility.c:829 #34 0x0000561c0475f046 in PortalRunUtility (portal=0x561c059445c8, pstmt=0x561c058dd6c8, isTopLevel=, setHoldSnapshot=, dest=0x561c058fdbf0, qc=0x7ffd52084a80) at pquery.c:1159 #35 0x0000561c0475fc9f in FillPortalStore (portal=0x561c059445c8, isTopLevel=) at ../../../src/include/nodes/pg_list.h:248 #36 0x0000561c0476062d in PortalRun (portal=portal@entry=0x561c059445c8, count=count@entry=9223372036854775807, isTopLevel=isTopLevel@entry=true, run_once=run_once@entry=true, dest=dest@entry=0x561c05993628, altdest=altdest@entry=0x561c05993628, qc=0x7ffd52084c80) at pquery.c:751 #37 0x0000561c0475c33c in exec_simple_query ( query_string=0x561c058dbce8 "explain (analyze, costs off, timing off) select count(b) from t where a between 2650 and 3290;") at postgres.c:1239 #38 0x0000561c0475dee0 in PostgresMain (argc=argc@entry=1, argv=argv@entry=0x7ffd520850e0, dbname=, username=) at postgres.c:4305 #39 0x0000561c046e709c in BackendRun (port=, port=) at postmaster.c:4488 #40 BackendStartup (port=) at postmaster.c:4210 #41 ServerLoop () at postmaster.c:1727 #42 0x0000561c046e7f3f in PostmasterMain (argc=, argv=0x561c058d6550) at postmaster.c:1400 #43 0x0000561c0448d970 in main (argc=3, argv=0x561c058d6550) at main.c:209