shangxinli commented on code in PR #957:
URL: https://github.com/apache/parquet-mr/pull/957#discussion_r900688194


##########
parquet-avro/src/main/java/org/apache/parquet/avro/AvroReadSupport.java:
##########
@@ -136,10 +137,22 @@ public RecordMaterializer<T> prepareForRead(
 
     GenericData model = getDataModel(configuration);
     String compatEnabled = metadata.get(AvroReadSupport.AVRO_COMPATIBILITY);
-    if (compatEnabled != null && Boolean.valueOf(compatEnabled)) {
-      return newCompatMaterializer(parquetSchema, avroSchema, model);
+
+    try {
+      if (compatEnabled != null && Boolean.valueOf(compatEnabled)) {
+        return newCompatMaterializer(parquetSchema, avroSchema, model);
+      }
+      return new AvroRecordMaterializer<T>(parquetSchema, avroSchema, model);
+    } catch (InvalidRecordException | ClassCastException e) {

Review Comment:
   I understand the targetted issue can be solved by this retry with a 
converted schema. But I am not sure if it is safe to just ignore Avro schema in 
case of exception. @rdblue @wesm Do you have some time to have a look at this? 



##########
parquet-avro/src/main/java/org/apache/parquet/avro/AvroReadSupport.java:
##########
@@ -136,10 +137,22 @@ public RecordMaterializer<T> prepareForRead(
 
     GenericData model = getDataModel(configuration);
     String compatEnabled = metadata.get(AvroReadSupport.AVRO_COMPATIBILITY);
-    if (compatEnabled != null && Boolean.valueOf(compatEnabled)) {
-      return newCompatMaterializer(parquetSchema, avroSchema, model);
+
+    try {
+      if (compatEnabled != null && Boolean.valueOf(compatEnabled)) {
+        return newCompatMaterializer(parquetSchema, avroSchema, model);
+      }
+      return new AvroRecordMaterializer<T>(parquetSchema, avroSchema, model);
+    } catch (InvalidRecordException | ClassCastException e) {

Review Comment:
   I understand the target issue can be solved by this retry with a converted 
schema. But I am not sure if it is safe to just ignore Avro schema in case of 
exception. @rdblue @wesm Do you have some time to have a look at this? 



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