On Mon, Nov 17, 2025 at 6:35 PM Michael Paquier <michael@paquier.xyz> wrote:
On Mon, Nov 17, 2025 at 08:53:35PM +0800, jian he wrote: > segfault: > SELECT '[{"attributes" : [1,2,3,4,5,67,6,7,8], "ndistinct" : 4}]'::pg_ndistinct; > > because src/backend/statistics/mvdistinct.c line: 310, Assert > Assert((item->nattributes >= 2) && (item->nattributes <= STATS_MAX_DIMENSIONS));
Ahah, good one here. Perhaps we had better switch this assertion to become an elog() with the import functions in mind, as well. It may be worth double-checking the other deserialization paths, as well. We need to be super careful about this stuff for data imports.
Yeah, I liked that one too, and I can act on that while we're debating how tightly to turn the screws on combinatorics.
