RussellSpitzer commented on code in PR #10659:
URL: https://github.com/apache/iceberg/pull/10659#discussion_r1693627295


##########
spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkScan.java:
##########
@@ -130,6 +142,98 @@ public void testEstimatedRowCount() throws 
NoSuchTableException {
     assertThat(stats.numRows().getAsLong()).isEqualTo(10000L);
   }
 
+  @TestTemplate
+  public void testColStats() throws NoSuchTableException {
+    sql("CREATE TABLE %s (id int, data string) USING iceberg", tableName);
+
+    List<SimpleRecord> records =
+        Lists.newArrayList(
+            new SimpleRecord(1, "a"),
+            new SimpleRecord(2, "b"),
+            new SimpleRecord(3, "a"),
+            new SimpleRecord(4, "b"));
+    spark
+        .createDataset(records, Encoders.bean(SimpleRecord.class))
+        .coalesce(1)
+        .writeTo(tableName)
+        .append();
+
+    Table table = validationCatalog.loadTable(tableIdent);
+    long snapshotId = table.currentSnapshot().snapshotId();
+
+    SparkScanBuilder scanBuilder =
+        new SparkScanBuilder(spark, table, CaseInsensitiveStringMap.empty());
+    SparkScan scan = (SparkScan) scanBuilder.build();
+
+    Map<String, String> reportColStatsDisabled =
+        ImmutableMap.of(
+            SQLConf.CBO_ENABLED().key(), "true", 
SparkSQLProperties.REPORT_COLUMN_STATS, "false");
+
+    Map<String, String> reportColStatsEnabled =
+        ImmutableMap.of(SQLConf.CBO_ENABLED().key(), "true");
+
+    // Test table does not have col stats

Review Comment:
   I would put this one in another test too



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