On 12/12/20 12:10 PM, Cherio wrote: > I am facing a consistent issue with pg_restore when moving databases > with large tables from PostgreSQL 10 to 13. pg_restore fails to restore > indexes on some large tables (anything over 20 million records). > > pg_restore: error: could not execute query: ERROR: out of memory > DETAIL: Failed on request of size 214728704 in memory context > "TupleSort sort". > CONTEXT: parallel worker > Command was: CREATE INDEX some_index_idx ON schema1.table1 USING btree > (some_field); > > This happens when a database is exported with formats "custom" or > "directory". No errors occur when the same databases are exported as > plain text and imported with psql. > > Initially I was importing with --jobs in several threads, but reducing > threads to 1 made no difference. I tried exporting with pg_dump versions > 13 and 10. It made no difference either - restore succeeds with plain > text + psql and fails with the other formats + pg_restore. > > The same doesn't happen when I import from 10 into 12. I am a bit lost > and concerned at this point about moving on with conversion to version 13. > > Any guidance would be greatly appreciated!