[ https://issues.apache.org/jira/browse/AVRO-680?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14339158#comment-14339158 ]
Ryan Blue commented on AVRO-680: -------------------------------- [~sachingoyal], thanks for the update! I found a couple more things that I missed last time (this is why I like pull requests better) so there are a few things to fix on the PR. Then there are a couple other items: 1. Are you sure we can't get the type of a map at the top level? It seems like we should be able to based on the same inspection that you use in {{isNonStringMap(Object)}}. 2. Empty maps are assumed to be String maps; should this be an option? I'd still prefer not to use the fingerprint, but other than risking collision on record names, I can't think of a much better solution. I don't think this is a blocker. > Allow for non-string keys > ------------------------- > > Key: AVRO-680 > URL: https://issues.apache.org/jira/browse/AVRO-680 > Project: Avro > Issue Type: Improvement > Affects Versions: 1.7.6, 1.7.7 > Reporter: Jeremy Hanna > Attachments: AVRO-680.patch, AVRO-680.patch, AVRO-680.patch, > PERF_8000_cycles.zip, isMap_Call_Hierarchy.png, non_string_map_keys.zip, > non_string_map_keys2.zip, non_string_map_keys3.zip, > non_string_map_keys4.patch, non_string_map_keys5.patch, > non_string_map_keys6.patch, non_string_map_keys7.patch, > non_string_map_perf.txt, non_string_map_perf2.txt, original_perf.txt > > > Based on an email thread back in April, Doug Cutting proposed a possible > solution for having non-string keys: > Stu Hood wrote: > > I can understand the reasoning behind AVRO-9, but now I need to look for an > > alternative to a 'map' that will allow me to store an association of bytes > > keys to values. > A map of Foo has the same binary format as an array of records, each > with a string field and a Foo field. So an application can use an array > schema similar to this to represent map-like structures with, e.g., > non-string keys. > Perhaps we could establish standard properties that indicate that a > given array of records should be represented in a map-like way if > possible? E.g.,: > {"type": "array", "isMap": true, "items": {"type":"record", ...}} > Doug -- This message was sent by Atlassian JIRA (v6.3.4#6332)