Fix DoubleRange resolution for NaN values

Author: devozerov

core/trino-spi/src/main/java/io/trino/spi/statistics/DoubleRange.java

@@ -52,6 +52,9 @@ public static Optional<DoubleRange> from(Type type, Object minTrinoNativeValue,
                     min,
                     max));
         }
+        if (isNaN(min.getAsDouble()) || isNaN(max.getAsDouble())) {
+            return Optional.empty();
+        }
         return Optional.of(new DoubleRange(min.getAsDouble(), max.getAsDouble()));
     }
 

plugin/trino-iceberg/src/test/java/io/trino/plugin/iceberg/TestIcebergStatistics.java

@@ -1143,6 +1143,21 @@ public void testStatsAfterDeletingAllRows()
                         "(null, null, DOUBLE '25')");
     }
 
+    @Test
+    public void testNaN()
+    {
+        String tableName = "test_nan";
+        assertUpdate("CREATE TABLE " + tableName + " AS SELECT 1 AS c1, double 'NaN' AS c2", 1);
+        assertQuery(
+                "SHOW STATS FOR " + tableName,
+                """
+                VALUES
+                  ('c1', null, 1.0, 0.0, null, 1, 1),
+                  ('c2', null, 1.0, 0.0, null, null, null),
+                  (null, null, null, null, 1.0, null, null)
+                """);
+    }
+
     private long getCurrentSnapshotId(String tableName)
     {
         return (long) computeActual(format("SELECT snapshot_id FROM \"%s$snapshots\" ORDER BY committed_at DESC FETCH FIRST 1 ROW WITH TIES", tableName))