On Mon, Apr 28, 2025 at 9:12 AM Peter Geoghegan <p...@bowt.ie> wrote:

> On Sun, Apr 27, 2025 at 1:06 PM Mark Dilger
> <mark.dil...@enterprisedb.com> wrote:
> > I can confirm that your patch fixes the problem, having spent some four
> hours trying to find other test cases which still fail, finding none.
>
> Great.
>
> I pushed essentially the same patch to HEAD just now.
>

A similar assertion can still be reached on HEAD using the attached (rather
contrived) regression test as of f60420cff66a9089a9b431f9c07f4a29aae4990a:

TRAP: failed Assert("sktrig_required"), File: "nbtutils.c", Line: 1861,
PID: 93648
0   postgres                            0x0000000100d1b0e0
ExceptionalCondition + 108
1   postgres                            0x00000001008b7658
_bt_advance_array_keys + 3828
2   postgres                            0x00000001008b5dc0
_bt_check_compare + 372
3   postgres                            0x00000001008b58ac _bt_checkkeys +
200
4   postgres                            0x00000001008b1400 _bt_readpage +
764
5   postgres                            0x00000001008b0454 _bt_readnextpage
+ 1260
6   postgres                            0x00000001008b0ab0 _bt_next + 76
7   postgres                            0x00000001008ac644 btgettuple + 136
8   postgres                            0x000000010089dcdc
index_getnext_tid + 68
9   postgres                            0x0000000100a297a0 IndexOnlyNext +
228
10  postgres                            0x0000000100a0db2c ExecScan + 228
11  postgres                            0x0000000100a39088 ExecSort + 536
12  postgres                            0x0000000100a03c68
standard_ExecutorRun + 312
13  postgres                            0x0000000100be5fb8 PortalRunSelect
+ 236
14  postgres                            0x0000000100be5bd4 PortalRun + 492
15  postgres                            0x0000000100be4b18
exec_simple_query + 1292
16  postgres                            0x0000000100be1d1c PostgresMain +
1388
17  postgres                            0x0000000100bdd9a8
BackendInitialize + 0
18  postgres                            0x0000000100b36dd8
postmaster_child_launch + 372
19  postgres                            0x0000000100b3b03c ServerLoop + 4948
20  postgres                            0x0000000100b39360
InitProcessGlobals + 0
21  postgres                            0x0000000100a58c00 help + 0
22  dyld                                0x000000018eb17154 start + 2476



—
Mark Dilger
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company

Attachment: _skipscan.sql
Description: Binary data

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