MonetDB: window-tunning - Updated covariance

Changeset: 0bc5f8b15835 for MonetDB URL: https://dev.monetdb.org/hg/MonetDB?cmd=changeset;node=0bc5f8b15835 Modified Files: gdk/gdk_analytic_func.c sql/test/analytics/Tests/analytics15.sql sql/test/analytics/Tests/analytics15.stable.out Branch: window-tunning Log Message: U

MonetDB: window-tunning - Updated covariance and correlation

Changeset: 7a088315370a for MonetDB URL: https://dev.monetdb.org/hg/MonetDB?cmd=changeset;node=7a088315370a Modified Files: gdk/gdk_analytic.h gdk/gdk_analytic_func.c sql/backends/monet5/sql.c sql/backends/monet5/sql_rank.c sql/backends/monet5/sql_rank.h Bran