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https://issues.apache.org/jira/browse/AVRO-1895?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15453480#comment-15453480
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Sean Busbey commented on AVRO-1895:
-----------------------------------
My concern is that reading through GenericData it looks like I could register
multiple conversions for a given logical type that differ only in their
expected converted type. Looking up with {{getConversion(LogicalType)}} will
only succeed in getting the last such conversion registered for the
logicalType, whereas {{getConversionByClass (Class<T>, LogicalType)}} would
work for the last registered conversion for each logicalType/converted-type
pair. This would be useful, for example, if you were trying to coalesce data
from multiple libraries that themselves used different converted types for a
given logical type.
> DeepCopy does not work with logical types
> -----------------------------------------
>
> Key: AVRO-1895
> URL: https://issues.apache.org/jira/browse/AVRO-1895
> Project: Avro
> Issue Type: Improvement
> Components: logical types
> Affects Versions: 1.8.1
> Reporter: Taras Bobrovytsky
> Assignee: Doug Cutting
> Priority: Critical
> Attachments: AVRO-1895.patch, AVRO-1895.patch, AVRO-1895.patch
>
>
> AvroSchema is taken from a compiled avsc file which contains a decimal field.
> {code}
> AvroSchema.Builder builder = AvroSchema.newBuilder();
> BigDecimal bd = new BigDecimal(new BigInteger("155"), 3);
> campaignBuilder.setDecimalField(bd);
> AvroSchema source = builder.build();
> //This line causes an exception
> AvroSchema.Builder builder1 = AvroSchema.newBuilder(source);
> {code}
> Exception:
> {code}
> InvocationTargetException: java.math.BigDecimal cannot be cast to
> java.nio.ByteBuffer
> {code}
> The same failure happens with GenericData as well:
> {code}
> GenericRecord copy = GenericData.get().deepCopy(AvroSchema.getClassSchema(),
> source);
> {code}
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