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I use this query to show disk x cache hits: -- perform a "select pg_stat_reset();" when you want to reset counter statistics with all_tables as ( SELECT * FROM ( SELECT 'all'::text as table_name, sum( (coalesce(heap_blks_read,0) + coalesce(idx_blks_read,0) + coalesce(toast_blks_read,0) + coalesce(tidx_blks_read,0)) ) as from_disk, ...


SQL Server 2016 Community Technology Preview 2.2 is the latest release of SQL Server 2016. This version does not have R support. Later release of 2016 (probably 3.0) will have support for R language. Found this slideshare presentation (slide - 130) that says R support will be in CTP 3.0.

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