Re: [PERFORM] bulk load performance question

2010-10-12 Thread Tom Lane
Samuel Gendler writes: > Is there some way to do the drop+rename in a manner which will preserve the > OID or otherwise allow blocked queries to execute correctly once they > unblock? No, but you could consider begin; truncate original_table; insert into original_table se

[PERFORM] bulk load performance question

2010-10-12 Thread Samuel Gendler
I've got a few tables that periodically get entirely refreshed via a COPY. I don't really have a good mechanism for detecting only rows which have changed so even though the differences are small, a full copy is easiest. However, the data includes a primary key column, so I can't simply load into