Major Description
Unless there is a strong reason why names like @foo.bar can't be used as property annotations in IDL, I propose an enhancement to the IDL parser to allow it.
The major drive for this change comes from Kafka Connect; for a certain fields – namely timestamps – additional metadata must be present in the schema when certain consumers read the data (e.g. the JDBC connector). What I hoped when using IDL was to write the following for a record field:
union {null, @connect.version(1) @connect.name("org.apache.kafka.connect.data.Timestamp") long} queryTime;
so that the following would be available in the schemata:
{
"name": "queryTime",
"type": [
"null",
{
"type": "long",
"connect.version": 1,
"connect.name": "org.apache.kafka.connect.data.Timestamp"
}
],
"default": null
}
Unfortunately, both connect.version and connect.name are unacceptable by the parser.
The change for this is quite minimal as it can be based on AVRO-1267.
