Prevent fatal error when no values are set in ColumnChunkStatistics

flow-php · Oct 28, 2023 · 6f325c6 · 6f325c6
1 parent 13bb41b
commit 6f325c6
Showing 1 changed file with 12 additions and 0 deletions.
diff --git a/src/lib/parquet/src/Flow/Parquet/ParquetFile/RowGroupBuilder/ColumnChunkStatistics.php b/src/lib/parquet/src/Flow/Parquet/ParquetFile/RowGroupBuilder/ColumnChunkStatistics.php
@@ -63,16 +63,28 @@ public function add(string|int|float|null|array|bool|object $value) : void
 
     public function avgStringLength() : int
     {
+        if (0 === $this->notNullCount()) {
+            return 0;
+        }
+
         return (int) \ceil($this->totalStringLength / $this->notNullCount());
     }
 
     public function cardinalityRation() : float
     {
+        if (0 === $this->notNullCount()) {
+            return 0;
+        }
+
         return \round($this->distinctCount() / $this->notNullCount(), 2);
     }
 
     public function distinctCount() : int
     {
+        if ([] === $this->values) {
+            return 0;
+        }
+
         return \count(\array_unique($this->values));
     }