v12.0 ERROR: trying to store a heap tuple into wrong type of slot

I'm not sure why we have that index, and my script probably should have known
to choose a better one to cluster on, but still..

ts=# CLUSTER huawei_m2000_config_enodebcell_enodeb USING huawei_m2000_config_enodebcell_enodeb_coalesce_idx ;
DEBUG:  00000: building index "pg_toast_1840151315_index" on table "pg_toast_1840151315" serially
LOCATION:  index_build, index.c:2791
DEBUG:  00000: clustering "public.huawei_m2000_config_enodebcell_enodeb" using sequential scan and sort
LOCATION:  copy_table_data, cluster.c:907
ERROR:  XX000: trying to store a heap tuple into wrong type of slot
LOCATION:  ExecStoreHeapTuple, execTuples.c:1328

ts=# \dt+ huawei_m2000_config_enodebcell_enodeb
 public | huawei_m2000_config_enodebcell_enodeb | table | telsasoft | 3480 kB | 

ts=# \d+ huawei_m2000_config_enodebcell_enodeb_coalesce_idx
            Index "public.huawei_m2000_config_enodebcell_enodeb_coalesce_idx"
  Column  | Type | Key? |              Definition               | Storage  | Stats target 
----------+------+------+---------------------------------------+----------+--------------
 coalesce | text | yes  | COALESCE(enodebfunctionname, ne_name) | extended | 
btree, for table "public.huawei_m2000_config_enodebcell_enodeb"

ts=# \d+ huawei_m2000_config_enodebcell_enodeb
...
Indexes:
    "huawei_m2000_config_enodebcell_enodeb_unique_idx" UNIQUE, btree (ne_name, tsoft_fake_key, device_name)
    "huawei_m2000_config_enodebcell_enodeb_cellid_idx" btree (cellid) CLUSTER
    "huawei_m2000_config_enodebcell_enodeb_coalesce_cellid_idx" btree (COALESCE(enodebfunctionname, ne_name), cellid)
    "huawei_m2000_config_enodebcell_enodeb_coalesce_idx" btree (COALESCE(enodebfunctionname, ne_name))
Statistics objects:
    "public"."huawei_m2000_config_enodebcell_enodeb" (ndistinct) ON ne_name, tsoft_fake_key, device_name FROM
huawei_m2000_config_enodebcell_
enodeb
Access method: heap

(gdb) bt
#0  errfinish (dummy=dummy@entry=0) at elog.c:411
#1  0x000000000087a959 in elog_finish (elevel=elevel@entry=20,
    fmt=fmt@entry=0x9c4d70 "trying to store a heap tuple into wrong type of slot") at elog.c:1365
#2  0x000000000061eea8 in ExecStoreHeapTuple (tuple=tuple@entry=0x1e06950, slot=slot@entry=0x1e05080,
shouldFree=shouldFree@entry=false)
    at execTuples.c:1328
#3  0x00000000008a7a06 in comparetup_cluster (a=<optimized out>, b=<optimized out>, state=0x1e04940) at
tuplesort.c:3795
#4  0x00000000008a5895 in qsort_tuple (a=0x2254b08, n=7699, cmp_tuple=0x8a7960 <comparetup_cluster>,
state=state@entry=0x1e04940)
    at qsort_tuple.c:112
#5  0x00000000008a98bb in tuplesort_sort_memtuples (state=state@entry=0x1e04940) at tuplesort.c:3320
#6  0x00000000008ab434 in tuplesort_performsort (state=state@entry=0x1e04940) at tuplesort.c:1811
#7  0x00000000004c9404 in heapam_relation_copy_for_cluster (OldHeap=0x7f21606695d8, NewHeap=0x7f2160585048,
OldIndex=<optimizedout>,
 
    use_sort=<optimized out>, OldestXmin=288843233, xid_cutoff=<optimized out>, multi_cutoff=0x7ffc05e6ba04,
num_tuples=0x7ffc05e6ba08,
    tups_vacuumed=0x7ffc05e6ba10, tups_recently_dead=0x7ffc05e6ba18) at heapam_handler.c:944
#8  0x000000000059cf07 in table_relation_copy_for_cluster (tups_recently_dead=0x7ffc05e6ba18,
tups_vacuumed=0x7ffc05e6ba10,
    num_tuples=0x7ffc05e6ba08, multi_cutoff=0x7ffc05e6ba04, xid_cutoff=0x7ffc05e6ba00, OldestXmin=<optimized out>,
use_sort=true,
    OldIndex=0x7f2160585f38, NewTable=0x7f2160585048, OldTable=0x7f21606695d8) at
../../../src/include/access/tableam.h:1410
#9  copy_table_data (pCutoffMulti=<synthetic pointer>, pFreezeXid=<synthetic pointer>, pSwapToastByContent=<synthetic
pointer>,
    verbose=<optimized out>, OIDOldIndex=13, OIDOldHeap=1499600032, OIDNewHeap=1840150111) at cluster.c:920
#10 rebuild_relation (verbose=<optimized out>, indexOid=13, OldHeap=<optimized out>) at cluster.c:616
#11 cluster_rel (tableOid=tableOid@entry=1499600032, indexOid=indexOid@entry=3081287757, options=<optimized out>) at
cluster.c:429
#12 0x000000000059d35e in cluster (stmt=stmt@entry=0x1d051f8, isTopLevel=isTopLevel@entry=true) at cluster.c:186
#13 0x000000000076547f in standard_ProcessUtility (pstmt=pstmt@entry=0x1d05518,
    queryString=queryString@entry=0x1d046e0 "CLUSTER huawei_m2000_config_enodebcell_enodeb USING
huawei_m2000_config_enodebcell_enodeb_coalesce_idx;", context=context@entry=PROCESS_UTILITY_TOPLEVEL,
params=params@entry=0x0,queryEnv=queryEnv@entry=0x0, dest=dest@entry=0x1d055f8,
 
    completionTag=completionTag@entry=0x7ffc05e6c0a0 "") at utility.c:659
#14 0x00007f21517204ef in pgss_ProcessUtility (pstmt=0x1d05518,
    queryString=0x1d046e0 "CLUSTER huawei_m2000_config_enodebcell_enodeb USING
huawei_m2000_config_enodebcell_enodeb_coalesce_idx;",
 
    context=PROCESS_UTILITY_TOPLEVEL, params=0x0, queryEnv=0x0, dest=0x1d055f8, completionTag=0x7ffc05e6c0a0 "")
    at pg_stat_statements.c:1006
#15 0x0000000000762816 in PortalRunUtility (portal=0x1d7a4e0, pstmt=0x1d05518, isTopLevel=<optimized out>,
setHoldSnapshot=<optimizedout>,
 
    dest=0x1d055f8, completionTag=0x7ffc05e6c0a0 "") at pquery.c:1175
#16 0x0000000000763267 in PortalRunMulti (portal=portal@entry=0x1d7a4e0, isTopLevel=isTopLevel@entry=true,
    setHoldSnapshot=setHoldSnapshot@entry=false, dest=dest@entry=0x1d055f8, altdest=altdest@entry=0x1d055f8,
    completionTag=completionTag@entry=0x7ffc05e6c0a0 "") at pquery.c:1328
---Type <return> to continue, or q <return> to quit---
#17 0x0000000000763e45 in PortalRun (portal=<optimized out>, count=9223372036854775807, isTopLevel=<optimized out>,
    run_once=<optimized out>, dest=0x1d055f8, altdest=0x1d055f8, completionTag=0x7ffc05e6c0a0 "") at pquery.c:796
#18 0x000000000075ff45 in exec_simple_query (query_string=<optimized out>) at postgres.c:1215
#19 0x0000000000761212 in PostgresMain (argc=<optimized out>, argv=<optimized out>, dbname=<optimized out>,
username=<optimizedout>)
 
    at postgres.c:4236
#20 0x0000000000483d02 in BackendRun (port=<optimized out>, port=<optimized out>) at postmaster.c:4431
#21 BackendStartup (port=0x1d2b340) at postmaster.c:4122
#22 ServerLoop () at postmaster.c:1704
#23 0x00000000006f0b1f in PostmasterMain (argc=argc@entry=3, argv=argv@entry=0x1cff280) at postmaster.c:1377
#24 0x0000000000484c93 in main (argc=3, argv=0x1cff280) at main.c:228
(gdb)

#2  0x000000000061eea8 in ExecStoreHeapTuple (tuple=tuple@entry=0x1e06950, slot=slot@entry=0x1e05080,
shouldFree=shouldFree@entry=false)
    at execTuples.c:1328
        tuple = 0x1e06950
        slot = 0x1e05080
        shouldFree = 64
#3  0x00000000008a7a06 in comparetup_cluster (a=<optimized out>, b=<optimized out>, state=0x1e04940) at
tuplesort.c:3795
        l_index_values = {140720407492095, 139781285162339, 206158430232, 8920320, 20, 140720407492304, 0, 0, 31,
4294967295,0, 
 
          139781288589152, 22, 540258, 139781288589152, 1, 13947976, 7541298, 139774490219072, 139774490219072,
31371296,1, 433, 7550010, 
 
          2040109468721, 18435224211311474416, 0, 0, 140720407492471, 112, 140720407492335, 139779728308152}
        r_index_values = {70729521432191, 1840042467, 433, 2097168, 139781288589240, 139781285165739, 2097152,
17520358731135336960,32768, 
 
          139781327984088, 0, 433, 433, 139778931751520, 31578680, 7552416, 140720407492471, 540257, 139774490219008,
7547611,
 
          72197375326517088, 17520358731135336960, 0, 19, 31578680, 4970402, 31360768, 98368, 0, 540258, 568, 540258}
        ecxt_scantuple = 0x1e05080
        l_index_isnull = {false <repeats 16 times>, 48, false, false, false, 91, false, false, false, 86, 101, 224, 93,
33,127, false, 
 
          false}
        r_index_isnull = {96, 119, 13, 94, 33, 127, false, false, 64, false, 3, false, false, false, false, false, 192,
74,37, 2, false, 
 
          false, false, false, 89, 155, 217, 93, 33, 127, false, false}
        sortKey = 0x1e05490
        ltup = 0x1e06950
        rtup = 0x1e06b60
        tupDesc = <optimized out>
        nkey = 0
        compare = <optimized out>

        datum1 = <optimized out>
        datum2 = <optimized out>
        isnull1 = false
        isnull2 = false
        leading = <optimized out>
#4  0x00000000008a5895 in qsort_tuple (a=0x2254b08, n=7699, cmp_tuple=0x8a7960 <comparetup_cluster>,
state=state@entry=0x1e04940)
    at qsort_tuple.c:112
        pa = <optimized out>
        pb = <optimized out>
        pc = <optimized out>
        pd = <optimized out>
        pl = <optimized out>
        pm = 0x2254b20
        pn = <optimized out>
        d1 = <optimized out>
        d2 = <optimized out>
        r = <optimized out>
        presorted = 1
#5  0x00000000008a98bb in tuplesort_sort_memtuples (state=state@entry=0x1e04940) at tuplesort.c:3320
No locals.
#6  0x00000000008ab434 in tuplesort_performsort (state=state@entry=0x1e04940) at tuplesort.c:1811
        oldcontext = 0x1de8700
        __func__ = "tuplesort_performsort"

#7  0x00000000004c9404 in heapam_relation_copy_for_cluster (OldHeap=0x7f21606695d8, NewHeap=0x7f2160585048,
OldIndex=<optimizedout>,
 
    use_sort=<optimized out>, OldestXmin=288843233, xid_cutoff=<optimized out>, multi_cutoff=0x7ffc05e6ba04,
num_tuples=0x7ffc05e6ba08,
    tups_vacuumed=0x7ffc05e6ba10, tups_recently_dead=0x7ffc05e6ba18) at heapam_handler.c:944
        n_tuples = 0
        rwstate = 0x1dfe910
        indexScan = 0x0
        tableScan = 0x1e1da38
        heapScan = 0x1e1da38
        use_wal = <optimized out>
        is_system_catalog = false
        tuplesort = <optimized out>

        oldTupDesc = <optimized out>
        newTupDesc = <optimized out>
        slot = 0x1e1de48
        values = 0x1e1c848
        isnull = 0x1e1d9e8
        hslot = 0x1e1de48
        __func__ = "heapam_relation_copy_for_cluster"
#8  0x000000000059cf07 in table_relation_copy_for_cluster (tups_recently_dead=0x7ffc05e6ba18,
tups_vacuumed=0x7ffc05e6ba10,
 
    num_tuples=0x7ffc05e6ba08, multi_cutoff=0x7ffc05e6ba04, xid_cutoff=0x7ffc05e6ba00, OldestXmin=<optimized out>,
use_sort=true,
 
    OldIndex=0x7f2160585f38, NewTable=0x7f2160585048, OldTable=0x7f21606695d8) at
../../../src/include/access/tableam.h:1410
No locals.
#9  copy_table_data (pCutoffMulti=<synthetic pointer>, pFreezeXid=<synthetic pointer>, pSwapToastByContent=<synthetic
pointer>,
 
    verbose=<optimized out>, OIDOldIndex=13, OIDOldHeap=1499600032, OIDNewHeap=1840150111) at cluster.c:920
        relRelation = <optimized out>
        relform = <optimized out>
        newTupDesc = <optimized out>
        MultiXactCutoff = 22262
        num_tuples = 7699
        tups_recently_dead = 0
        ru0 = {tv = {tv_sec = 1570827033, tv_usec = 106788}, ru = {ru_utime = {tv_sec = 0, tv_usec = 339198}, ru_stime
={tv_sec = 0, 
 
              tv_usec = 77498}, {ru_maxrss = 111588, __ru_maxrss_word = 111588}, {ru_ixrss = 0, __ru_ixrss_word = 0},
{ru_idrss= 0, 
 
              __ru_idrss_word = 0}, {ru_isrss = 0, __ru_isrss_word = 0}, {ru_minflt = 32814, __ru_minflt_word = 32814},
{ru_majflt= 0, 
 
              __ru_majflt_word = 0}, {ru_nswap = 0, __ru_nswap_word = 0}, {ru_inblock = 0, __ru_inblock_word = 0},
{ru_oublock= 296, 
 
              __ru_oublock_word = 296}, {ru_msgsnd = 0, __ru_msgsnd_word = 0}, {ru_msgrcv = 0, __ru_msgrcv_word = 0},
{ru_nsignals= 0, 
 
              __ru_nsignals_word = 0}, {ru_nvcsw = 41, __ru_nvcsw_word = 41}, {ru_nivcsw = 46, __ru_nivcsw_word =
46}}}
        oldTupDesc = <optimized out>
        OldHeap = 0x7f21606695d8
        reltup = <optimized out>
        use_sort = <optimized out>
        tups_vacuumed = 0
        num_pages = <optimized out>
        NewHeap = 0x7f2160585048
        OldIndex = 0x7f2160585f38
        OldestXmin = 288843233

        FreezeXid = 288843233
        elevel = 13
#10 rebuild_relation (verbose=<optimized out>, indexOid=13, OldHeap=<optimized out>) at cluster.c:616
        tableOid = 1499600032
        tableSpace = <optimized out>
        OIDNewHeap = 1840150111
        relpersistence = 112 'p'
        swap_toast_by_content = true
        frozenXid = <optimized out>
        is_system_catalog = false
        cutoffMulti = <optimized out>
#11 cluster_rel (tableOid=tableOid@entry=1499600032, indexOid=indexOid@entry=3081287757, options=<optimized out>) at
cluster.c:429
        OldHeap = <optimized out>
        verbose = <optimized out>
        recheck = <optimized out>
        __func__ = "cluster_rel"
#12 0x000000000059d35e in cluster (stmt=stmt@entry=0x1d051f8, isTopLevel=isTopLevel@entry=true) at cluster.c:186
        tableOid = 1499600032
        indexOid = 3081287757
        rel = 0x7f21606695d8
        __func__ = "cluster"
#13 0x000000000076547f in standard_ProcessUtility (pstmt=pstmt@entry=0x1d05518, 
    queryString=queryString@entry=0x1d046e0 "CLUSTER huawei_m2000_config_enodebcell_enodeb USING
huawei_m2000_config_enodebcell_enodeb_coalesce_idx;", context=context@entry=PROCESS_UTILITY_TOPLEVEL,
params=params@entry=0x0,queryEnv=queryEnv@entry=0x0, dest=dest@entry=0x1d055f8, 
 
    completionTag=completionTag@entry=0x7ffc05e6c0a0 "") at utility.c:659
        parsetree = 0x1d051f8
        isTopLevel = true
        isAtomicContext = false
        pstate = 0x1de8810
        __func__ = "standard_ProcessUtility"