I was generating a decent sized delimited file (table dump of ~21 mill rows, 13 columns of mostly IDs and dates). It took < 15 minutes exporting the query results as a delimited file last week. I tried spooling it today, and 30 minutes in the file was only at about 4 mill rows. Stopping it and trying the export ran in about the same time as the previous export.
Should I expect to see such noticeable differences between spooling and export speeds?