Amazon Redshift Spectrum クエリパフォーマンス - Amazon Redshiftexplain select top 10 spectrum.sales.eventid, sum(spectrum.sales.pricepaid) from spectrum.sales, event where spectrum.sales.eventid = event.eventid and spectrum.sales.pricepaid > 30 group by spectrum.sales.eventid order by 2 desc; QUERY PLAN ----------------------------------------------------------------------------- XN Limit (cost=1001055770628.63..1001055770628.65 rows=10 width=31) -> XN Merge
