Andrey Borodin <x4...@yandex-team.ru> writes: >> 9 июня 2019 г., в 23:05, Siarhei Siniak <siarheisin...@yahoo.com> написал(а): >> I've been using cube extension recompiled with >> #define MAX_DIM 256. >> But with a version 11.3 I'm getting the following error: >> failed to add item to index page in <index_name>
> So, you have changed source code (removing dim constraint) and get cryptic > error after that. In some way this is expected... Yeah. There is necessarily a limit on the size of index entries, and it's getting exceeded. > Nevertheless, we can improve AddTuple messages. But there is not such strict > guidelines as with B-tree. Probably, tuples should not be bigger than half of > usable page space. I do not think "improve AddTuple messages" is going to be enough to fix this. Daniel was correct that this is the same problem seen in https://www.postgresql.org/message-id/flat/AM6PR06MB57318C9882C021879DD4101EA3100%40AM6PR06MB5731.eurprd06.prod.outlook.com See my reply there. I think we should continue this discussion on that thread, since it has seniority. regards, tom lane