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Yiping Han commented on PIG-734: -------------------------------- I don't get the serializing part. I would expect the type-checking just happen once, would that be a performance problem. Actually we are thinking if we sould switch to integer key for saving space. I wouldn't post strong against to this rollback, but I don't see a significant reason for dong that. > Non-string keys in maps > ----------------------- > > Key: PIG-734 > URL: https://issues.apache.org/jira/browse/PIG-734 > Project: Pig > Issue Type: Bug > Affects Versions: 0.2.0 > Reporter: Alan Gates > Assignee: Alan Gates > Priority: Minor > Fix For: 0.3.0 > > > With the addition of types to pig, maps were changed to allow any atomic type > to be a key. However, in practice we do not see people using keys other than > strings. And allowing multiple types is causing us issues in serializing > data (we have to check what every key type is) and in the design for non-java > UDFs (since many scripting languages include associative arrays such as > Perl's hash). > So I propose we scope back maps to only have string keys. This would be a > non-compatible change. But I am not aware of anyone using non-string keys, > so hopefully it would have little or no impact. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.