ajantha-bhat commented on code in PR #13329:
URL: https://github.com/apache/iceberg/pull/13329#discussion_r2151920350


##########
core/src/main/java/org/apache/iceberg/PartitionStatsHandler.java:
##########
@@ -280,6 +304,8 @@ private static Collection<PartitionStats> 
computeAndMergeStatsIncremental(
       oldStats.forEach(
           partitionStats ->
               statsMap.put(partitionStats.specId(), 
partitionStats.partition(), partitionStats));
+    } catch (IllegalArgumentException | IllegalStateException exception) {

Review Comment:
   callstack for parquet
   ```
   Not a primitive type: struct<1000: c2: optional string, 1001: c3: optional 
string>
   java.lang.IllegalArgumentException: Not a primitive type: struct<1000: c2: 
optional string, 1001: c3: optional string>
        at org.apache.iceberg.types.Type.asPrimitiveType(Type.java:73)
        at 
org.apache.iceberg.parquet.TypeWithSchemaVisitor.visit(TypeWithSchemaVisitor.java:53)
        at 
org.apache.iceberg.parquet.TypeWithSchemaVisitor.visitField(TypeWithSchemaVisitor.java:192)
        at 
org.apache.iceberg.parquet.TypeWithSchemaVisitor.visitFields(TypeWithSchemaVisitor.java:207)
        at 
org.apache.iceberg.parquet.TypeWithSchemaVisitor.visit(TypeWithSchemaVisitor.java:49)
        at 
org.apache.iceberg.parquet.ParquetSchemaUtil.pruneColumns(ParquetSchemaUtil.java:134)
        at org.apache.iceberg.parquet.ReadConf.<init>(ReadConf.java:82)
        at org.apache.iceberg.parquet.ParquetReader.init(ParquetReader.java:74)
        at 
org.apache.iceberg.parquet.ParquetReader.iterator(ParquetReader.java:94)
        at 
org.apache.iceberg.io.CloseableIterable$7$1.<init>(CloseableIterable.java:205)
        at 
org.apache.iceberg.io.CloseableIterable$7.iterator(CloseableIterable.java:204)
        at 
org.apache.iceberg.io.CloseableIterable$7.iterator(CloseableIterable.java:196)
        at 
org.apache.iceberg.relocated.com.google.common.collect.Lists.newArrayList(Lists.java:139)
        at 
org.apache.iceberg.TestParquetPartitionStatsHandler.testStatsWithInvalidSchema(TestParquetPartitionStatsHandler.java:45)
        at java.base/java.lang.reflect.Method.invoke(Method.java:566)
        at java.base/java.util.ArrayList.forEach(ArrayList.java:1541)
        at java.base/java.util.ArrayList.forEach(ArrayList.java:1541)
   ```
   
   
   callstack for avro
   
   ```
   java.lang.IllegalStateException: Not an instance of 
org.apache.iceberg.StructLike: 0
        at org.apache.iceberg.data.GenericRecord.get(GenericRecord.java:138)
        at 
org.apache.iceberg.PartitionStatsHandler.recordToPartitionStats(PartitionStatsHandler.java:266)
        at 
org.apache.iceberg.io.CloseableIterable$7$1.next(CloseableIterable.java:219)
        ...(99 remaining lines not displayed - this can be changed with 
Assertions.setMaxStackTraceElementsDisplayed)
        at 
org.apache.iceberg.avro.TestAvroPartitionStatsHandler.testReadingStatsWithInvalidSchema(TestAvroPartitionStatsHandler.java:57)
        at java.base/java.lang.reflect.Method.invoke(Method.java:566)
        at java.base/java.util.ArrayList.forEach(ArrayList.java:1541)
        at java.base/java.util.ArrayList.forEach(ArrayList.java:1541)
   ```
   
   or should I just catch `RuntimeException` here? 



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