I was wondering what happens when the 32 TiB per table limit is reached, so I faked 32767 1 GiB sparse files using dd and then tried inserting more rows.
On a cassert-enabled build I got: TRAP: FailedAssertion("tagPtr->blockNum != P_NEW", File: "./build/../src/backend/storage/buffer/buf_table.c", Line: 125) On a normal build, I got: ERROR: cannot extend file "base/18635/53332" beyond 4294967295 blocks ORT: mdextend, md.c:443 Shouldn't the cassert build raise the ERROR instead as well? PostgreSQL 13.4. Christoph -- Senior Consultant, Tel.: +49 2166 9901 187 credativ GmbH, HRB Mönchengladbach 12080, USt-ID-Nummer: DE204566209 Trompeterallee 108, 41189 Mönchengladbach Geschäftsführung: Dr. Michael Meskes, Sascha Heuer, Geoff Richardson, Peter Lilley; Unser Umgang mit personenbezogenen Daten unterliegt folgenden Bestimmungen: https://www.credativ.de/datenschutz