On top of that, cross-language compatibility (at least, C#/Java) is not supported on the 1.8.x branch.
-----Original Message----- From: Andy Coates (JIRA) [mailto:[email protected]] Sent: 23 March 2018 14:14 To: [email protected] Subject: [jira] [Created] (AVRO-2164) Make Decimal a first class type. Andy Coates created AVRO-2164: --------------------------------- Summary: Make Decimal a first class type. Key: AVRO-2164 URL: https://issues.apache.org/jira/browse/AVRO-2164 Project: Avro Issue Type: Improvement Components: logical types Affects Versions: 1.8.2 Reporter: Andy Coates I'd be interested to hear the communities thoughts on making decimal a first class type. The current logical type encodes a decimal into a _bytes_ or _fixed_. This encoding does not include any information about the scale, i.e. this encoding is lossy. There are open issues around the compatibility / evolvability of schemas containing decimal logical types, (e.g. AVRO-2078 & AVRO-1721), that mean reading data that was previously written with a different scale will result in data corruption. If these issues were fixed, with suitable compatibility checks put in place, this would then make it impossible to evolve an Avro schema where the scale needs to be changed. This inability to evolve the scale is very restrictive, and can result in high overhead for organizations that _need_ to change the scale, i.e. they may potentially need to copy their entire data set, deserializing with the old scale and re-serializing with the new. If _decimal_ were promoted to a first class type, this would allow the scale to be captured in the serialized form, allow for schema evolution support. -- This message was sent by Atlassian JIRA (v7.6.3#76005) This email and its content belong to Ingenico Group. The enclosed information is confidential and may not be disclosed to any unauthorized person. If you have received it by mistake do not forward it and delete it from your system. Cet email et son contenu sont la propriété du Groupe Ingenico. L’information qu’il contient est confidentielle et ne peut être communiquée à des personnes non autorisées. Si vous l’avez reçu par erreur ne le transférez pas et supprimez-le.
