Fix buffer size calculation in TDigest

prestodb · Mar 11, 2022 · b21d4fd · b21d4fd
1 parent 372956c
commit b21d4fd
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/presto-main/src/main/java/com/facebook/presto/tdigest/TDigest.java b/presto-main/src/main/java/com/facebook/presto/tdigest/TDigest.java
@@ -142,7 +142,7 @@ private TDigest(double compression)
         this.compression = 2 * this.publicCompression;
 
         // having a big buffer is good for speed
-        this.maxBufferSize = 5 * (int) ceil(this.publicCompression + sizeFudge);
+        this.maxBufferSize = 5 * (int) ceil(this.compression + sizeFudge);
         this.maxCentroidCount = (int) ceil(this.compression + sizeFudge);
 
         this.weight = new double[1];