docs: note warehouse-computed row totals in pivot tables (#740)

Co-authored-by: mintlify[bot] <109931778+mintlify[bot]@users.noreply.github.com>

Author: mintlify[bot]

references/chart-types/table.mdx

@@ -158,7 +158,7 @@ You can add column totals or row totals (in pivot tables) to your tables by sele
   Totals are not calculated for table calculations.
 </Info>
 
-In pivot tables, column totals are computed by running an extra aggregation query against your warehouse, so each total reflects the true value for that column rather than a sum of the cells shown. This means totals are now accurate for `count`, `sum`, `count_distinct`, `average`, `min`, `max`, and ratio metrics in pivot tables.
+In pivot tables, both column totals and row totals are computed by running extra aggregation queries against your warehouse, so each total reflects the true value for that column or row rather than a sum of the cells shown. This means totals are accurate for `count`, `sum`, `count_distinct`, `average`, `min`, `max`, and ratio metrics in pivot tables, in both the metrics-as-columns and metrics-as-rows layouts. If the warehouse cannot return a value for a given total (for example, when a metric is not defined for that row), the cell is left blank rather than showing an incorrect sum.
 
 ### Incorrect totals