From 30ac0335c908e34bb6ee110f95643f8e9bb61b49 Mon Sep 17 00:00:00 2001
From: Huaxin Gao <huaxin.gao@apple.com>
Date: Sat, 20 Apr 2024 19:26:30 -0700
Subject: [PATCH] fix fmt

---
 core/src/execution/datafusion/expressions/variance.rs | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/core/src/execution/datafusion/expressions/variance.rs b/core/src/execution/datafusion/expressions/variance.rs
index 46ea9dced..c653adfaa 100644
--- a/core/src/execution/datafusion/expressions/variance.rs
+++ b/core/src/execution/datafusion/expressions/variance.rs
@@ -235,8 +235,8 @@ impl Accumulator for VarianceAccumulator {
         };
 
         Ok(ScalarValue::Float64(match self.count {
-            0.0 => None,
-            1.0 => {
+            count if count == 0.0 => None,
+            count if count == 1.0 => {
                 if let StatsType::Population = self.stats_type {
                     Some(0.0)
                 } else if self.null_on_divide_by_zero {
@@ -245,7 +245,7 @@ impl Accumulator for VarianceAccumulator {
                     Some(f64::NAN)
                 }
             }
-            _ => Some(self.m2 / count),
+            _ => Some(self.m2 / self.count),
         }))
     }