fix doc

ariesdevil · ariesdevil · commit fd4da4d1cd51 · 2023-03-19T17:18:37.000+08:00
diff --git a/docs/doc/15-sql-functions/10-aggregate-functions/aggregate-quantile.md b/docs/doc/15-sql-functions/10-aggregate-functions/aggregate-quantile.md
@@ -28,7 +28,7 @@ QUANTILE_CONT(level1, level2, ...)(expression)
 
 ## Return Type
 
-Float64.
+Float64 or float64 array based on level number.
 
 ## Examples
 
