> COPY invokes all the same logic as INSERT on the server side > (rowexclusive locking, transaction log, updating indexes, rules). > The difference is that all the rows are inserted as a single > transaction. This reduces the number of fsync's on the xlog, > which may be a limiting factor for you. You'll want to crank > WAL_BUFFERS and CHECKPOINT_SEGMENTS to match, though. > One of my streams has 6K records; I run with WB=1000, CS=128.
So what's the difference between a COPY and a batch of INSERT statements. Also, surely, fsyncs only occur at the end of a transaction, no need to fsync before a commit has been issued, right? David ---------------------------(end of broadcast)--------------------------- TIP 6: Have you searched our list archives? http://archives.postgresql.org