[ https://issues.apache.org/jira/browse/PIG-1269?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Xuefu Zhang updated PIG-1269: ----------------------------- Status: Open (was: Patch Available) > [Zebra] Restrict schema definition for collection > ------------------------------------------------- > > Key: PIG-1269 > URL: https://issues.apache.org/jira/browse/PIG-1269 > Project: Pig > Issue Type: Bug > Reporter: Xuefu Zhang > Assignee: Xuefu Zhang > Fix For: 0.7.0 > > Attachments: zebra.0310 > > > Currently Zebra grammar for schema definition for collection field allows > many types of definition. To reduce complexity and remove ambiguity, and more > importantly, to make the meta data more representative of the actual data > instances, the grammar rules need to be changed. Only a record type is > allowed and required for collection definition. Thus, > fieldName:collection(record(c1:int, c2:string)) is legal, while > fieldName:collection(c1:int, c2:string), > fieldName:collection(f:record(c1:int, c2:string)), > fieldName:collection(c1:int), or feildName:collection(int) is illegal. > This will have some impact on existing Zebra M/R programs or Pig scripts that > use Zebra. Schema acceptable in previous release now may become illegal > because of this change. This should be clearly documented. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.