Chris Withers <chris@xxxxxxxxxxx> writes: > It has 4.1 million rows in it and while importing the data only > takes a couple of minutes, when I did a test load into the new > cluster, building the mkt_profile_period_col1_col4_col2_chan_excl > index for the exclude constraint took 15 hours. Don't recall for sure, but I think GIST index build is sensitive to the maintenance_work_mem setting; did you have that cranked up? > - failing that, what can I do to import and then create the index > in the background? CREATE INDEX CONCURRENTLY, perhaps. regards, tom lane